1 #
   2 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   3 #  
   4 # This code is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License version 2 only, as
   6 # published by the Free Software Foundation.  Oracle designates this
   7 # particular file as subject to the "Classpath" exception as provided
   8 # by Oracle in the LICENSE file that accompanied this code.
   9 #  
  10 # This code is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 # version 2 for more details (a copy is included in the LICENSE file that
  14 # accompanied this code).
  15 #  
  16 # You should have received a copy of the GNU General Public License version
  17 # 2 along with this work; if not, write to the Free Software Foundation,
  18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19 #  
  20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21 # or visit www.oracle.com if you need additional information or have any
  22 # questions.
  23 #
  24 # <pre>
  25 # This file is in the public domain, so clarified as of
  26 # 2009-05-17 by Arthur David Olson.
  27 
  28 # This data is by no means authoritative; if you think you know better,
  29 # go ahead and edit the file (and please send any changes to
  30 # tz@elsie.nci.nih.gov for general use in the future).
  31 
  32 # From Paul Eggert (2006-03-22):
  33 # A good source for time zone historical data outside the U.S. is
  34 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
  35 # San Diego: ACS Publications, Inc. (2003).
  36 #
  37 # Gwillim Law writes that a good source
  38 # for recent time zone data is the International Air Transport
  39 # Association's Standard Schedules Information Manual (IATA SSIM),
  40 # published semiannually.  Law sent in several helpful summaries
  41 # of the IATA's data after 1990.
  42 #
  43 # Except where otherwise noted, Shanks & Pottenger is the source for
  44 # entries through 1991, and IATA SSIM is the source for entries afterwards.
  45 #
  46 # Other sources occasionally used include:
  47 #
  48 #       Edward W. Whitman, World Time Differences,
  49 #       Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
  50 #       which I found in the UCLA library.
  51 #
  52 #       <a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
  53 #       William Willett, The Waste of Daylight, 19th edition
  54 #       </a> (1914-03)
  55 #
  56 #       Brazil's Departamento Servico da Hora (DSH),
  57 #       <a href="http://pcdsh01.on.br/HISTHV.htm">
  58 #       History of Summer Time
  59 #       </a> (1998-09-21, in Portuguese)
  60 
  61 #
  62 # I invented the abbreviations marked `*' in the following table;
  63 # the rest are from earlier versions of this file, or from other sources.
  64 # Corrections are welcome!
  65 #                   std dst  2dst
  66 #                   LMT           Local Mean Time
  67 #       -4:00       AST ADT       Atlantic
  68 #       -3:00       WGT WGST      Western Greenland*
  69 #       -1:00       EGT EGST      Eastern Greenland*
  70 #        0:00       GMT BST  BDST Greenwich, British Summer
  71 #        0:00       GMT IST       Greenwich, Irish Summer
  72 #        0:00       WET WEST WEMT Western Europe
  73 #        0:19:32.13 AMT NST       Amsterdam, Netherlands Summer (1835-1937)*
  74 #        0:20       NET NEST      Netherlands (1937-1940)*
  75 #        1:00       CET CEST CEMT Central Europe
  76 #        1:00:14    SET           Swedish (1879-1899)*
  77 #        2:00       EET EEST      Eastern Europe
  78 #        3:00       MSK MSD       Moscow
  79 #
  80 # A reliable and entertaining source about time zones, especially in Britain,
  81 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
  82 
  83 # From Peter Ilieve (1994-12-04),
  84 # The original six [EU members]: Belgium, France, (West) Germany, Italy,
  85 # Luxembourg, the Netherlands.
  86 # Plus, from 1 Jan 73: Denmark, Ireland, United Kingdom.
  87 # Plus, from 1 Jan 81: Greece.
  88 # Plus, from 1 Jan 86: Spain, Portugal.
  89 # Plus, from 1 Jan 95: Austria, Finland, Sweden. (Norway negotiated terms for
  90 # entry but in a referendum on 28 Nov 94 the people voted No by 52.2% to 47.8%
  91 # on a turnout of 88.6%. This was almost the same result as Norway's previous
  92 # referendum in 1972, they are the only country to have said No twice.
  93 # Referendums in the other three countries voted Yes.)
  94 # ...
  95 # Estonia ... uses EU dates but not at 01:00 GMT, they use midnight GMT.
  96 # I don't think they know yet what they will do from 1996 onwards.
  97 # ...
  98 # There shouldn't be any [current members who are not using EU rules].
  99 # A Directive has the force of law, member states are obliged to enact
 100 # national law to implement it. The only contentious issue was the
 101 # different end date for the UK and Ireland, and this was always allowed
 102 # in the Directive.
 103 
 104 
 105 ###############################################################################
 106 
 107 # Britain (United Kingdom) and Ireland (Eire)
 108 
 109 # From Peter Ilieve (1994-07-06):
 110 #
 111 # On 17 Jan 1994 the Independent, a UK quality newspaper, had a piece about
 112 # historical vistas along the Thames in west London. There was a photo
 113 # and a sketch map showing some of the sightlines involved. One paragraph
 114 # of the text said:
 115 #
 116 # `An old stone obelisk marking a forgotten terrestrial meridian stands
 117 # beside the river at Kew. In the 18th century, before time and longitude
 118 # was standardised by the Royal Observatory in Greenwich, scholars observed
 119 # this stone and the movement of stars from Kew Observatory nearby. They
 120 # made their calculations and set the time for the Horse Guards and Parliament,
 121 # but now the stone is obscured by scrubwood and can only be seen by walking
 122 # along the towpath within a few yards of it.'
 123 #
 124 # I have a one inch to one mile map of London and my estimate of the stone's
 125 # position is 51 deg. 28' 30" N, 0 deg. 18' 45" W. The longitude should
 126 # be within about +-2". The Ordnance Survey grid reference is TQ172761.
 127 #
 128 # [This yields GMTOFF = -0:01:15 for London LMT in the 18th century.]
 129 
 130 # From Paul Eggert (1993-11-18):
 131 #
 132 # Howse writes that Britain was the first country to use standard time.
 133 # The railways cared most about the inconsistencies of local mean time,
 134 # and it was they who forced a uniform time on the country.
 135 # The original idea was credited to Dr. William Hyde Wollaston (1766-1828)
 136 # and was popularized by Abraham Follett Osler (1808-1903).
 137 # The first railway to adopt London time was the Great Western Railway
 138 # in November 1840; other railways followed suit, and by 1847 most
 139 # (though not all) railways used London time.  On 1847-09-22 the
 140 # Railway Clearing House, an industry standards body, recommended that GMT be
 141 # adopted at all stations as soon as the General Post Office permitted it.
 142 # The transition occurred on 12-01 for the L&NW, the Caledonian,
 143 # and presumably other railways; the January 1848 Bradshaw's lists many
 144 # railways as using GMT.  By 1855 the vast majority of public
 145 # clocks in Britain were set to GMT (though some, like the great clock
 146 # on Tom Tower at Christ Church, Oxford, were fitted with two minute hands,
 147 # one for local time and one for GMT).  The last major holdout was the legal
 148 # system, which stubbornly stuck to local time for many years, leading
 149 # to oddities like polls opening at 08:13 and closing at 16:13.
 150 # The legal system finally switched to GMT when the Statutes (Definition
 151 # of Time) Act took effect; it received the Royal Assent on 1880-08-02.
 152 #
 153 # In the tables below, we condense this complicated story into a single
 154 # transition date for London, namely 1847-12-01.  We don't know as much
 155 # about Dublin, so we use 1880-08-02, the legal transition time.
 156 
 157 # From Paul Eggert (2003-09-27):
 158 # Summer Time was first seriously proposed by William Willett (1857-1915),
 159 # a London builder and member of the Royal Astronomical Society
 160 # who circulated a pamphlet ``The Waste of Daylight'' (1907)
 161 # that proposed advancing clocks 20 minutes on each of four Sundays in April,
 162 # and retarding them by the same amount on four Sundays in September.
 163 # A bill was drafted in 1909 and introduced in Parliament several times,
 164 # but it met with ridicule and opposition, especially from farming interests.
 165 # Later editions of the pamphlet proposed one-hour summer time, and
 166 # it was eventually adopted as a wartime measure in 1916.
 167 # See: Summer Time Arrives Early, The Times (2000-05-18).
 168 # A monument to Willett was unveiled on 1927-05-21, in an open space in
 169 # a 45-acre wood near Chislehurst, Kent that was purchased by popular
 170 # subscription and open to the public.  On the south face of the monolith,
 171 # designed by G. W. Miller, is the...William Willett Memorial Sundial,
 172 # which is permanently set to Summer Time.
 173 
 174 # From Winston Churchill (1934-04-28):
 175 # It is one of the paradoxes of history that we should owe the boon of
 176 # summer time, which gives every year to the people of this country
 177 # between 160 and 170 hours more daylight leisure, to a war which
 178 # plunged Europe into darkness for four years, and shook the
 179 # foundations of civilization throughout the world.
 180 #       -- <a href="http://www.winstonchurchill.org/fh114willett.htm">
 181 #       "A Silent Toast to William Willett", Pictorial Weekly
 182 #       </a>
 183 
 184 # From Paul Eggert (1996-09-03):
 185 # The OED Supplement says that the English originally said ``Daylight Saving''
 186 # when they were debating the adoption of DST in 1908; but by 1916 this
 187 # term appears only in quotes taken from DST's opponents, whereas the
 188 # proponents (who eventually won the argument) are quoted as using ``Summer''.
 189 
 190 # From Arthur David Olson (1989-01-19):
 191 #
 192 # A source at the British Information Office in New York avers that it's
 193 # known as "British" Summer Time in all parts of the United Kingdom.
 194 
 195 # Date: 4 Jan 89 08:57:25 GMT (Wed)
 196 # From: Jonathan Leffler
 197 # [British Summer Time] is fixed annually by Act of Parliament.
 198 # If you can predict what Parliament will do, you should be in
 199 # politics making a fortune, not computing.
 200 
 201 # From Chris Carrier (1996-06-14):
 202 # I remember reading in various wartime issues of the London Times the
 203 # acronym BDST for British Double Summer Time.  Look for the published
 204 # time of sunrise and sunset in The Times, when BDST was in effect, and
 205 # if you find a zone reference it will say, "All times B.D.S.T."
 206 
 207 # From Joseph S. Myers (1999-09-02):
 208 # ... some military cables (WO 219/4100 - this is a copy from the
 209 # main SHAEF archives held in the US National Archives, SHAEF/5252/8/516)
 210 # agree that the usage is BDST (this appears in a message dated 17 Feb 1945).
 211 
 212 # From Joseph S. Myers (2000-10-03):
 213 # On 18th April 1941, Sir Stephen Tallents of the BBC wrote to Sir
 214 # Alexander Maxwell of the Home Office asking whether there was any
 215 # official designation; the reply of the 21st was that there wasn't
 216 # but he couldn't think of anything better than the "Double British
 217 # Summer Time" that the BBC had been using informally.
 218 # http://student.cusu.cam.ac.uk/~jsm28/british-time/bbc-19410418.png
 219 # http://student.cusu.cam.ac.uk/~jsm28/british-time/ho-19410421.png
 220 
 221 # From Sir Alexander Maxwell in the above-mentioned letter (1941-04-21):
 222 # [N]o official designation has as far as I know been adopted for the time
 223 # which is to be introduced in May....
 224 # I cannot think of anything better than "Double British Summer Time"
 225 # which could not be said to run counter to any official description.
 226 
 227 # From Paul Eggert (2000-10-02):
 228 # Howse writes (p 157) `DBST' too, but `BDST' seems to have been common
 229 # and follows the more usual convention of putting the location name first,
 230 # so we use `BDST'.
 231 
 232 # Peter Ilieve (1998-04-19) described at length
 233 # the history of summer time legislation in the United Kingdom.
 234 # Since 1998 Joseph S. Myers has been updating
 235 # and extending this list, which can be found in
 236 # http://student.cusu.cam.ac.uk/~jsm28/british-time/
 237 # <a href="http://www.polyomino.org.uk/british-time/">
 238 # History of legal time in Britain
 239 # </a>
 240 # Rob Crowther (2012-01-04) reports that that URL no longer
 241 # exists, and the article can now be found at:
 242 # <a href="http://www.polyomino.org.uk/british-time/">
 243 # http://www.polyomino.org.uk/british-time/
 244 # </a>
 245 
 246 # From Joseph S. Myers (1998-01-06):
 247 #
 248 # The legal time in the UK outside of summer time is definitely GMT, not UTC;
 249 # see Lord Tanlaw's speech
 250 # <a href="http://www.parliament.the-stationery-office.co.uk/pa/ld199697/ldhansrd/pdvn/lds97/text/70611-20.htm#70611-20_head0">
 251 # (Lords Hansard 11 June 1997 columns 964 to 976)
 252 # </a>.
 253 
 254 # From Paul Eggert (2006-03-22):
 255 #
 256 # For lack of other data, follow Shanks & Pottenger for Eire in 1940-1948.
 257 #
 258 # Given Ilieve and Myers's data, the following claims by Shanks & Pottenger
 259 # are incorrect:
 260 #     * Wales did not switch from GMT to daylight saving time until
 261 #       1921 Apr 3, when they began to conform with the rest of Great Britain.
 262 # Actually, Wales was identical after 1880.
 263 #     * Eire had two transitions on 1916 Oct 1.
 264 # It actually just had one transition.
 265 #     * Northern Ireland used single daylight saving time throughout WW II.
 266 # Actually, it conformed to Britain.
 267 #     * GB-Eire changed standard time to 1 hour ahead of GMT on 1968-02-18.
 268 # Actually, that date saw the usual switch to summer time.
 269 # Standard time was not changed until 1968-10-27 (the clocks didn't change).
 270 #
 271 # Here is another incorrect claim by Shanks & Pottenger:
 272 #     * Jersey, Guernsey, and the Isle of Man did not switch from GMT
 273 #       to daylight saving time until 1921 Apr 3, when they began to
 274 #       conform with Great Britain.
 275 # S.R.&O. 1916, No. 382 and HO 45/10811/312364 (quoted above) say otherwise.
 276 #
 277 # The following claim by Shanks & Pottenger is possible though doubtful;
 278 # we'll ignore it for now.
 279 #     * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00.
 280 #
 281 #
 282 # Whitman says Dublin Mean Time was -0:25:21, which is more precise than
 283 # Shanks & Pottenger.
 284 # Perhaps this was Dunsink Observatory Time, as Dunsink Observatory
 285 # (8 km NW of Dublin's center) seemingly was to Dublin as Greenwich was
 286 # to London.  For example:
 287 #
 288 #   "Timeball on the ballast office is down.  Dunsink time."
 289 #   -- James Joyce, Ulysses
 290 
 291 # From Joseph S. Myers (2005-01-26):
 292 # Irish laws are available online at www.irishstatutebook.ie.  These include
 293 # various relating to legal time, for example:
 294 #
 295 # ZZA13Y1923.html ZZA12Y1924.html ZZA8Y1925.html ZZSIV20PG1267.html
 296 #
 297 # ZZSI71Y1947.html ZZSI128Y1948.html ZZSI23Y1949.html ZZSI41Y1950.html
 298 # ZZSI27Y1951.html ZZSI73Y1952.html
 299 #
 300 # ZZSI11Y1961.html ZZSI232Y1961.html ZZSI182Y1962.html
 301 # ZZSI167Y1963.html ZZSI257Y1964.html ZZSI198Y1967.html
 302 # ZZA23Y1968.html ZZA17Y1971.html
 303 #
 304 # ZZSI67Y1981.html ZZSI212Y1982.html ZZSI45Y1986.html
 305 # ZZSI264Y1988.html ZZSI52Y1990.html ZZSI371Y1992.html
 306 # ZZSI395Y1994.html ZZSI484Y1997.html ZZSI506Y2001.html
 307 #
 308 # [These are all relative to the root, e.g., the first is
 309 # <http://www.irishstatutebook.ie/ZZA13Y1923.html>.]
 310 #
 311 # (These are those I found, but there could be more.  In any case these
 312 # should allow various updates to the comments in the europe file to cover
 313 # the laws applicable in Ireland.)
 314 #
 315 # (Note that the time in the Republic of Ireland since 1968 has been defined
 316 # in terms of standard time being GMT+1 with a period of winter time when it
 317 # is GMT, rather than standard time being GMT with a period of summer time
 318 # being GMT+1.)
 319 
 320 # From Paul Eggert (1999-03-28):
 321 # Clive Feather (<news:859845706.26043.0@office.demon.net>, 1997-03-31)
 322 # reports that Folkestone (Cheriton) Shuttle Terminal uses Concession Time
 323 # (CT), equivalent to French civil time.
 324 # Julian Hill (<news:36118128.5A14@virgin.net>, 1998-09-30) reports that
 325 # trains between Dollands Moor (the freight facility next door)
 326 # and Frethun run in CT.
 327 # My admittedly uninformed guess is that the terminal has two authorities,
 328 # the French concession operators and the British civil authorities,
 329 # and that the time depends on who you're talking to.
 330 # If, say, the British police were called to the station for some reason,
 331 # I would expect the official police report to use GMT/BST and not CET/CEST.
 332 # This is a borderline case, but for now let's stick to GMT/BST.
 333 
 334 # From an anonymous contributor (1996-06-02):
 335 # The law governing time in Ireland is under Statutory Instrument SI 395/94,
 336 # which gives force to European Union 7th Council Directive # 94/21/EC.
 337 # Under this directive, the Minister for Justice in Ireland makes appropriate
 338 # regulations. I spoke this morning with the Secretary of the Department of
 339 # Justice (tel +353 1 678 9711) who confirmed to me that the correct name is
 340 # "Irish Summer Time", abbreviated to "IST".
 341 
 342 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 343 # Summer Time Act, 1916
 344 Rule    GB-Eire 1916    only    -       May     21      2:00s   1:00    BST
 345 Rule    GB-Eire 1916    only    -       Oct      1      2:00s   0       GMT
 346 # S.R.&O. 1917, No. 358
 347 Rule    GB-Eire 1917    only    -       Apr      8      2:00s   1:00    BST
 348 Rule    GB-Eire 1917    only    -       Sep     17      2:00s   0       GMT
 349 # S.R.&O. 1918, No. 274
 350 Rule    GB-Eire 1918    only    -       Mar     24      2:00s   1:00    BST
 351 Rule    GB-Eire 1918    only    -       Sep     30      2:00s   0       GMT
 352 # S.R.&O. 1919, No. 297
 353 Rule    GB-Eire 1919    only    -       Mar     30      2:00s   1:00    BST
 354 Rule    GB-Eire 1919    only    -       Sep     29      2:00s   0       GMT
 355 # S.R.&O. 1920, No. 458
 356 Rule    GB-Eire 1920    only    -       Mar     28      2:00s   1:00    BST
 357 # S.R.&O. 1920, No. 1844
 358 Rule    GB-Eire 1920    only    -       Oct     25      2:00s   0       GMT
 359 # S.R.&O. 1921, No. 363
 360 Rule    GB-Eire 1921    only    -       Apr      3      2:00s   1:00    BST
 361 Rule    GB-Eire 1921    only    -       Oct      3      2:00s   0       GMT
 362 # S.R.&O. 1922, No. 264
 363 Rule    GB-Eire 1922    only    -       Mar     26      2:00s   1:00    BST
 364 Rule    GB-Eire 1922    only    -       Oct      8      2:00s   0       GMT
 365 # The Summer Time Act, 1922
 366 Rule    GB-Eire 1923    only    -       Apr     Sun>=16      2:00s   1:00    BST
 367 Rule    GB-Eire 1923    1924    -       Sep     Sun>=16      2:00s   0       GMT
 368 Rule    GB-Eire 1924    only    -       Apr     Sun>=9       2:00s   1:00    BST
 369 Rule    GB-Eire 1925    1926    -       Apr     Sun>=16      2:00s   1:00    BST
 370 # The Summer Time Act, 1925
 371 Rule    GB-Eire 1925    1938    -       Oct     Sun>=2       2:00s   0       GMT
 372 Rule    GB-Eire 1927    only    -       Apr     Sun>=9       2:00s   1:00    BST
 373 Rule    GB-Eire 1928    1929    -       Apr     Sun>=16      2:00s   1:00    BST
 374 Rule    GB-Eire 1930    only    -       Apr     Sun>=9       2:00s   1:00    BST
 375 Rule    GB-Eire 1931    1932    -       Apr     Sun>=16      2:00s   1:00    BST
 376 Rule    GB-Eire 1933    only    -       Apr     Sun>=9       2:00s   1:00    BST
 377 Rule    GB-Eire 1934    only    -       Apr     Sun>=16      2:00s   1:00    BST
 378 Rule    GB-Eire 1935    only    -       Apr     Sun>=9       2:00s   1:00    BST
 379 Rule    GB-Eire 1936    1937    -       Apr     Sun>=16      2:00s   1:00    BST
 380 Rule    GB-Eire 1938    only    -       Apr     Sun>=9       2:00s   1:00    BST
 381 Rule    GB-Eire 1939    only    -       Apr     Sun>=16      2:00s   1:00    BST
 382 # S.R.&O. 1939, No. 1379
 383 Rule    GB-Eire 1939    only    -       Nov     Sun>=16      2:00s   0       GMT
 384 # S.R.&O. 1940, No. 172 and No. 1883
 385 Rule    GB-Eire 1940    only    -       Feb     Sun>=23      2:00s   1:00    BST
 386 # S.R.&O. 1941, No. 476
 387 Rule    GB-Eire 1941    only    -       May     Sun>=2       1:00s   2:00    BDST
 388 Rule    GB-Eire 1941    1943    -       Aug     Sun>=9       1:00s   1:00    BST
 389 # S.R.&O. 1942, No. 506
 390 Rule    GB-Eire 1942    1944    -       Apr     Sun>=2       1:00s   2:00    BDST
 391 # S.R.&O. 1944, No. 932
 392 Rule    GB-Eire 1944    only    -       Sep     Sun>=16      1:00s   1:00    BST
 393 # S.R.&O. 1945, No. 312
 394 Rule    GB-Eire 1945    only    -       Apr     Mon>=2       1:00s   2:00    BDST
 395 Rule    GB-Eire 1945    only    -       Jul     Sun>=9       1:00s   1:00    BST
 396 # S.R.&O. 1945, No. 1208
 397 Rule    GB-Eire 1945    1946    -       Oct     Sun>=2       2:00s   0       GMT
 398 Rule    GB-Eire 1946    only    -       Apr     Sun>=9       2:00s   1:00    BST
 399 # The Summer Time Act, 1947
 400 Rule    GB-Eire 1947    only    -       Mar     16      2:00s   1:00    BST
 401 Rule    GB-Eire 1947    only    -       Apr     13      1:00s   2:00    BDST
 402 Rule    GB-Eire 1947    only    -       Aug     10      1:00s   1:00    BST
 403 Rule    GB-Eire 1947    only    -       Nov      2      2:00s   0       GMT
 404 # Summer Time Order, 1948 (S.I. 1948/495)
 405 Rule    GB-Eire 1948    only    -       Mar     14      2:00s   1:00    BST
 406 Rule    GB-Eire 1948    only    -       Oct     31      2:00s   0       GMT
 407 # Summer Time Order, 1949 (S.I. 1949/373)
 408 Rule    GB-Eire 1949    only    -       Apr      3      2:00s   1:00    BST
 409 Rule    GB-Eire 1949    only    -       Oct     30      2:00s   0       GMT
 410 # Summer Time Order, 1950 (S.I. 1950/518)
 411 # Summer Time Order, 1951 (S.I. 1951/430)
 412 # Summer Time Order, 1952 (S.I. 1952/451)
 413 Rule    GB-Eire 1950    1952    -       Apr     Sun>=14      2:00s   1:00    BST
 414 Rule    GB-Eire 1950    1952    -       Oct     Sun>=21      2:00s   0       GMT
 415 # revert to the rules of the Summer Time Act, 1925
 416 Rule    GB-Eire 1953    only    -       Apr     Sun>=16      2:00s   1:00    BST
 417 Rule    GB-Eire 1953    1960    -       Oct     Sun>=2       2:00s   0       GMT
 418 Rule    GB-Eire 1954    only    -       Apr     Sun>=9       2:00s   1:00    BST
 419 Rule    GB-Eire 1955    1956    -       Apr     Sun>=16      2:00s   1:00    BST
 420 Rule    GB-Eire 1957    only    -       Apr     Sun>=9       2:00s   1:00    BST
 421 Rule    GB-Eire 1958    1959    -       Apr     Sun>=16      2:00s   1:00    BST
 422 Rule    GB-Eire 1960    only    -       Apr     Sun>=9       2:00s   1:00    BST
 423 # Summer Time Order, 1961 (S.I. 1961/71)
 424 # Summer Time (1962) Order, 1961 (S.I. 1961/2465)
 425 # Summer Time Order, 1963 (S.I. 1963/81)
 426 Rule    GB-Eire 1961    1963    -       Mar     lastSun 2:00s   1:00    BST
 427 Rule    GB-Eire 1961    1968    -       Oct     Sun>=23      2:00s   0       GMT
 428 # Summer Time (1964) Order, 1963 (S.I. 1963/2101)
 429 # Summer Time Order, 1964 (S.I. 1964/1201)
 430 # Summer Time Order, 1967 (S.I. 1967/1148)
 431 Rule    GB-Eire 1964    1967    -       Mar     Sun>=19      2:00s   1:00    BST
 432 # Summer Time Order, 1968 (S.I. 1968/117)
 433 Rule    GB-Eire 1968    only    -       Feb     18      2:00s   1:00    BST
 434 # The British Standard Time Act, 1968
 435 #       (no summer time)
 436 # The Summer Time Act, 1972
 437 Rule    GB-Eire 1972    1980    -       Mar     Sun>=16      2:00s   1:00    BST
 438 Rule    GB-Eire 1972    1980    -       Oct     Sun>=23      2:00s   0       GMT
 439 # Summer Time Order, 1980 (S.I. 1980/1089)
 440 # Summer Time Order, 1982 (S.I. 1982/1673)
 441 # Summer Time Order, 1986 (S.I. 1986/223)
 442 # Summer Time Order, 1988 (S.I. 1988/931)
 443 Rule    GB-Eire 1981    1995    -       Mar     lastSun 1:00u   1:00    BST
 444 Rule    GB-Eire 1981    1989    -       Oct     Sun>=23      1:00u   0       GMT
 445 # Summer Time Order, 1989 (S.I. 1989/985)
 446 # Summer Time Order, 1992 (S.I. 1992/1729)
 447 # Summer Time Order 1994 (S.I. 1994/2798)
 448 Rule    GB-Eire 1990    1995    -       Oct     Sun>=22      1:00u   0       GMT
 449 # Summer Time Order 1997 (S.I. 1997/2982)
 450 # See EU for rules starting in 1996.
 451 
 452 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 453 Zone    Europe/London   -0:01:15 -      LMT     1847 Dec  1 0:00s
 454                          0:00   GB-Eire %s      1968 Oct 27
 455                          1:00   -       BST     1971 Oct 31 2:00u
 456                          0:00   GB-Eire %s      1996
 457                          0:00   EU      GMT/BST
 458 Link    Europe/London   Europe/Jersey
 459 Link    Europe/London   Europe/Guernsey
 460 Link    Europe/London   Europe/Isle_of_Man
 461 Zone    Europe/Dublin   -0:25:00 -      LMT     1880 Aug  2
 462                         -0:25:21 -      DMT     1916 May 21 2:00
 463                         -0:25:21 1:00   IST     1916 Oct  1 2:00s
 464                          0:00   GB-Eire %s      1921 Dec  6 # independence
 465                          0:00   GB-Eire GMT/IST 1940 Feb 25 2:00
 466                          0:00   1:00    IST     1946 Oct  6 2:00
 467                          0:00   -       GMT     1947 Mar 16 2:00
 468                          0:00   1:00    IST     1947 Nov  2 2:00
 469                          0:00   -       GMT     1948 Apr 18 2:00
 470                          0:00   GB-Eire GMT/IST 1968 Oct 27
 471                          1:00   -       IST     1971 Oct 31 2:00u
 472                          0:00   GB-Eire GMT/IST 1996
 473                          0:00   EU      GMT/IST
 474 
 475 ###############################################################################
 476 
 477 # Europe
 478 
 479 # EU rules are for the European Union, previously known as the EC, EEC,
 480 # Common Market, etc.
 481 
 482 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 483 Rule    EU      1977    1980    -       Apr     Sun>=1        1:00u  1:00    S
 484 Rule    EU      1977    only    -       Sep     lastSun  1:00u  0       -
 485 Rule    EU      1978    only    -       Oct      1       1:00u  0       -
 486 Rule    EU      1979    1995    -       Sep     lastSun  1:00u  0       -
 487 Rule    EU      1981    max     -       Mar     lastSun  1:00u  1:00    S
 488 Rule    EU      1996    max     -       Oct     lastSun  1:00u  0       -
 489 # The most recent directive covers the years starting in 2002.  See:
 490 # <a="http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:NOT">
 491 # Directive 2000/84/EC of the European Parliament and of the Council
 492 # of 19 January 2001 on summer-time arrangements.
 493 # </a>
 494 
 495 # W-Eur differs from EU only in that W-Eur uses standard time.
 496 Rule    W-Eur   1977    1980    -       Apr     Sun>=1        1:00s  1:00    S
 497 Rule    W-Eur   1977    only    -       Sep     lastSun  1:00s  0       -
 498 Rule    W-Eur   1978    only    -       Oct      1       1:00s  0       -
 499 Rule    W-Eur   1979    1995    -       Sep     lastSun  1:00s  0       -
 500 Rule    W-Eur   1981    max     -       Mar     lastSun  1:00s  1:00    S
 501 Rule    W-Eur   1996    max     -       Oct     lastSun  1:00s  0       -
 502 
 503 # Older C-Eur rules are for convenience in the tables.
 504 # From 1977 on, C-Eur differs from EU only in that C-Eur uses standard time.
 505 Rule    C-Eur   1916    only    -       Apr     30      23:00   1:00    S
 506 Rule    C-Eur   1916    only    -       Oct      1       1:00   0       -
 507 Rule    C-Eur   1917    1918    -       Apr     Mon>=15       2:00s  1:00    S
 508 Rule    C-Eur   1917    1918    -       Sep     Mon>=15       2:00s  0       -
 509 Rule    C-Eur   1940    only    -       Apr      1       2:00s  1:00    S
 510 Rule    C-Eur   1942    only    -       Nov      2       2:00s  0       -
 511 Rule    C-Eur   1943    only    -       Mar     29       2:00s  1:00    S
 512 Rule    C-Eur   1943    only    -       Oct      4       2:00s  0       -
 513 Rule    C-Eur   1944    1945    -       Apr     Mon>=1        2:00s  1:00    S
 514 # Whitman gives 1944 Oct 7; go with Shanks & Pottenger.
 515 Rule    C-Eur   1944    only    -       Oct      2       2:00s  0       -
 516 # From Jesper Norgaard Welen (2008-07-13):
 517 #
 518 # I found what is probably a typo of 2:00 which should perhaps be 2:00s
 519 # in the C-Eur rule from tz database version 2008d (this part was
 520 # corrected in version 2008d). The circumstancial evidence is simply the
 521 # tz database itself, as seen below:
 522 #
 523 # Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15  0:01
 524 #    0:00 France WE%sT 1945 Sep 16  3:00
 525 #
 526 # Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15
 527 #    0:00 France WE%sT 1945 Sep 16 3:00
 528 #
 529 # Zone Europe/Belgrade 1:22:00 - LMT 1884
 530 #    1:00 1:00 CEST 1945 Sep 16  2:00s
 531 #
 532 # Rule France 1945 only - Sep 16  3:00 0 -
 533 # Rule Belgium 1945 only - Sep 16  2:00s 0 -
 534 # Rule Neth 1945 only - Sep 16 2:00s 0 -
 535 #
 536 # The rule line to be changed is:
 537 #
 538 # Rule C-Eur 1945 only - Sep 16  2:00 0 -
 539 #
 540 # It seems that Paris, Monaco, Rule France, Rule Belgium all agree on
 541 # 2:00 standard time, e.g. 3:00 local time.  However there are no
 542 # countries that use C-Eur rules in September 1945, so the only items
 543 # affected are apparently these ficticious zones that translates acronyms
 544 # CET and MET:
 545 #
 546 # Zone CET  1:00 C-Eur CE%sT
 547 # Zone MET  1:00 C-Eur ME%sT
 548 #
 549 # It this is right then the corrected version would look like:
 550 #
 551 # Rule C-Eur 1945 only - Sep 16  2:00s 0 -
 552 #
 553 # A small step for mankind though 8-)
 554 Rule    C-Eur   1945    only    -       Sep     16       2:00s  0       -
 555 Rule    C-Eur   1977    1980    -       Apr     Sun>=1        2:00s  1:00    S
 556 Rule    C-Eur   1977    only    -       Sep     lastSun  2:00s  0       -
 557 Rule    C-Eur   1978    only    -       Oct      1       2:00s  0       -
 558 Rule    C-Eur   1979    1995    -       Sep     lastSun  2:00s  0       -
 559 Rule    C-Eur   1981    max     -       Mar     lastSun  2:00s  1:00    S
 560 Rule    C-Eur   1996    max     -       Oct     lastSun  2:00s  0       -
 561 
 562 # E-Eur differs from EU only in that E-Eur switches at midnight local time.
 563 Rule    E-Eur   1977    1980    -       Apr     Sun>=1        0:00   1:00    S
 564 Rule    E-Eur   1977    only    -       Sep     lastSun  0:00   0       -
 565 Rule    E-Eur   1978    only    -       Oct      1       0:00   0       -
 566 Rule    E-Eur   1979    1995    -       Sep     lastSun  0:00   0       -
 567 Rule    E-Eur   1981    max     -       Mar     lastSun  0:00   1:00    S
 568 Rule    E-Eur   1996    max     -       Oct     lastSun  0:00   0       -
 569 
 570 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 571 Rule    Russia  1917    only    -       Jul      1      23:00   1:00    MST     # Moscow Summer Time
 572 Rule    Russia  1917    only    -       Dec     28       0:00   0       MMT     # Moscow Mean Time
 573 Rule    Russia  1918    only    -       May     31      22:00   2:00    MDST    # Moscow Double Summer Time
 574 Rule    Russia  1918    only    -       Sep     16       1:00   1:00    MST
 575 Rule    Russia  1919    only    -       May     31      23:00   2:00    MDST
 576 Rule    Russia  1919    only    -       Jul      1       2:00   1:00    S
 577 Rule    Russia  1919    only    -       Aug     16       0:00   0       -
 578 Rule    Russia  1921    only    -       Feb     14      23:00   1:00    S
 579 Rule    Russia  1921    only    -       Mar     20      23:00   2:00    M # Midsummer
 580 Rule    Russia  1921    only    -       Sep      1       0:00   1:00    S
 581 Rule    Russia  1921    only    -       Oct      1       0:00   0       -
 582 # Act No.925 of the Council of Ministers of the USSR (1980-10-24):
 583 Rule    Russia  1981    1984    -       Apr      1       0:00   1:00    S
 584 Rule    Russia  1981    1983    -       Oct      1       0:00   0       -
 585 # Act No.967 of the Council of Ministers of the USSR (1984-09-13), repeated in
 586 # Act No.227 of the Council of Ministers of the USSR (1989-03-14):
 587 Rule    Russia  1984    1991    -       Sep     lastSun  2:00s  0       -
 588 Rule    Russia  1985    1991    -       Mar     lastSun  2:00s  1:00    S
 589 #
 590 Rule    Russia  1992    only    -       Mar     lastSat  23:00  1:00    S
 591 Rule    Russia  1992    only    -       Sep     lastSat  23:00  0       -
 592 Rule    Russia  1993    2010    -       Mar     lastSun  2:00s  1:00    S
 593 Rule    Russia  1993    1995    -       Sep     lastSun  2:00s  0       -
 594 Rule    Russia  1996    2010    -       Oct     lastSun  2:00s  0       -
 595 
 596 # From Alexander Krivenyshev (2011-06-14):
 597 # According to Kremlin press service, Russian President Dmitry Medvedev
 598 # signed a federal law "On calculation of time" on June 9, 2011.
 599 # According to the law Russia is abolishing daylight saving time.
 600 #
 601 # Medvedev signed a law "On the Calculation of Time" (in russian):
 602 # <a href="http://bmockbe.ru/events/?ID=7583">
 603 # http://bmockbe.ru/events/?ID=7583
 604 # </a>
 605 #
 606 # Medvedev signed a law on the calculation of the time (in russian):
 607 # <a href="http://www.regnum.ru/news/polit/1413906.html">
 608 # http://www.regnum.ru/news/polit/1413906.html
 609 # </a>
 610 
 611 # From Arthur David Olson (2011-06-15):
 612 # Take "abolishing daylight saving time" to mean that time is now considered
 613 # to be standard.
 614 
 615 # These are for backward compatibility with older versions.
 616 
 617 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 618 Zone    WET             0:00    EU      WE%sT
 619 Zone    CET             1:00    C-Eur   CE%sT
 620 Zone    MET             1:00    C-Eur   ME%sT
 621 Zone    EET             2:00    EU      EE%sT
 622 
 623 # Previous editions of this database used abbreviations like MET DST
 624 # for Central European Summer Time, but this didn't agree with common usage.
 625 
 626 # From Markus Kuhn (1996-07-12):
 627 # The official German names ... are
 628 #
 629 #       Mitteleuropaeische Zeit (MEZ)         = UTC+01:00
 630 #       Mitteleuropaeische Sommerzeit (MESZ)  = UTC+02:00
 631 #
 632 # as defined in the German Time Act (Gesetz ueber die Zeitbestimmung (ZeitG),
 633 # 1978-07-25, Bundesgesetzblatt, Jahrgang 1978, Teil I, S. 1110-1111)....
 634 # I wrote ... to the German Federal Physical-Technical Institution
 635 #
 636 #       Physikalisch-Technische Bundesanstalt (PTB)
 637 #       Laboratorium 4.41 "Zeiteinheit"
 638 #       Postfach 3345
 639 #       D-38023 Braunschweig
 640 #       phone: +49 531 592-0
 641 #
 642 # ... I received today an answer letter from Dr. Peter Hetzel, head of the PTB
 643 # department for time and frequency transmission.  He explained that the
 644 # PTB translates MEZ and MESZ into English as
 645 #
 646 #       Central European Time (CET)         = UTC+01:00
 647 #       Central European Summer Time (CEST) = UTC+02:00
 648 
 649 
 650 # Albania
 651 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 652 Rule    Albania 1940    only    -       Jun     16      0:00    1:00    S
 653 Rule    Albania 1942    only    -       Nov      2      3:00    0       -
 654 Rule    Albania 1943    only    -       Mar     29      2:00    1:00    S
 655 Rule    Albania 1943    only    -       Apr     10      3:00    0       -
 656 Rule    Albania 1974    only    -       May      4      0:00    1:00    S
 657 Rule    Albania 1974    only    -       Oct      2      0:00    0       -
 658 Rule    Albania 1975    only    -       May      1      0:00    1:00    S
 659 Rule    Albania 1975    only    -       Oct      2      0:00    0       -
 660 Rule    Albania 1976    only    -       May      2      0:00    1:00    S
 661 Rule    Albania 1976    only    -       Oct      3      0:00    0       -
 662 Rule    Albania 1977    only    -       May      8      0:00    1:00    S
 663 Rule    Albania 1977    only    -       Oct      2      0:00    0       -
 664 Rule    Albania 1978    only    -       May      6      0:00    1:00    S
 665 Rule    Albania 1978    only    -       Oct      1      0:00    0       -
 666 Rule    Albania 1979    only    -       May      5      0:00    1:00    S
 667 Rule    Albania 1979    only    -       Sep     30      0:00    0       -
 668 Rule    Albania 1980    only    -       May      3      0:00    1:00    S
 669 Rule    Albania 1980    only    -       Oct      4      0:00    0       -
 670 Rule    Albania 1981    only    -       Apr     26      0:00    1:00    S
 671 Rule    Albania 1981    only    -       Sep     27      0:00    0       -
 672 Rule    Albania 1982    only    -       May      2      0:00    1:00    S
 673 Rule    Albania 1982    only    -       Oct      3      0:00    0       -
 674 Rule    Albania 1983    only    -       Apr     18      0:00    1:00    S
 675 Rule    Albania 1983    only    -       Oct      1      0:00    0       -
 676 Rule    Albania 1984    only    -       Apr      1      0:00    1:00    S
 677 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 678 Zone    Europe/Tirane   1:19:20 -       LMT     1914
 679                         1:00    -       CET     1940 Jun 16
 680                         1:00    Albania CE%sT   1984 Jul
 681                         1:00    EU      CE%sT
 682 
 683 # Andorra
 684 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 685 Zone    Europe/Andorra  0:06:04 -       LMT     1901
 686                         0:00    -       WET     1946 Sep 30
 687                         1:00    -       CET     1985 Mar 31 2:00
 688                         1:00    EU      CE%sT
 689 
 690 # Austria
 691 
 692 # From Paul Eggert (2006-03-22): Shanks & Pottenger give 1918-06-16 and
 693 # 1945-11-18, but the Austrian Federal Office of Metrology and
 694 # Surveying (BEV) gives 1918-09-16 and for Vienna gives the "alleged"
 695 # date of 1945-04-12 with no time.  For the 1980-04-06 transition
 696 # Shanks & Pottenger give 02:00, the BEV 00:00.  Go with the BEV,
 697 # and guess 02:00 for 1945-04-12.
 698 
 699 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 700 Rule    Austria 1920    only    -       Apr      5      2:00s   1:00    S
 701 Rule    Austria 1920    only    -       Sep     13      2:00s   0       -
 702 Rule    Austria 1946    only    -       Apr     14      2:00s   1:00    S
 703 Rule    Austria 1946    1948    -       Oct     Sun>=1       2:00s   0       -
 704 Rule    Austria 1947    only    -       Apr      6      2:00s   1:00    S
 705 Rule    Austria 1948    only    -       Apr     18      2:00s   1:00    S
 706 Rule    Austria 1980    only    -       Apr      6      0:00    1:00    S
 707 Rule    Austria 1980    only    -       Sep     28      0:00    0       -
 708 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 709 Zone    Europe/Vienna   1:05:20 -       LMT     1893 Apr
 710                         1:00    C-Eur   CE%sT   1920
 711                         1:00    Austria CE%sT   1940 Apr  1 2:00s
 712                         1:00    C-Eur   CE%sT   1945 Apr  2 2:00s
 713                         1:00    1:00    CEST    1945 Apr 12 2:00s
 714                         1:00    -       CET     1946
 715                         1:00    Austria CE%sT   1981
 716                         1:00    EU      CE%sT
 717 
 718 # Belarus
 719 # From Yauhen Kharuzhy (2011-09-16):
 720 # By latest Belarus government act Europe/Minsk timezone was changed to
 721 # GMT+3 without DST (was GMT+2 with DST).
 722 #
 723 # Sources (Russian language):
 724 # 1.
 725 # <a href="http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html">
 726 # http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html
 727 # </a>
 728 # 2.
 729 # <a href="http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/">
 730 # http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/
 731 # </a>
 732 # 3.
 733 # <a href="http://news.tut.by/society/250578.html">
 734 # http://news.tut.by/society/250578.html
 735 # </a>
 736 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 737 Zone    Europe/Minsk    1:50:16 -       LMT     1880
 738                         1:50    -       MMT     1924 May 2 # Minsk Mean Time
 739                         2:00    -       EET     1930 Jun 21
 740                         3:00    -       MSK     1941 Jun 28
 741                         1:00    C-Eur   CE%sT   1944 Jul  3
 742                         3:00    Russia  MSK/MSD 1990
 743                         3:00    -       MSK     1991 Mar 31 2:00s
 744                         2:00    1:00    EEST    1991 Sep 29 2:00s
 745                         2:00    -       EET     1992 Mar 29 0:00s
 746                         2:00    1:00    EEST    1992 Sep 27 0:00s
 747                         2:00    Russia  EE%sT   2011 Mar 27 2:00s
 748                         3:00    -       FET # Further-eastern European Time
 749 
 750 # Belgium
 751 #
 752 # From Paul Eggert (1997-07-02):
 753 # Entries from 1918 through 1991 are taken from:
 754 #       Annuaire de L'Observatoire Royal de Belgique,
 755 #       Avenue Circulaire, 3, B-1180 BRUXELLES, CLVIIe annee, 1991
 756 #       (Imprimerie HAYEZ, s.p.r.l., Rue Fin, 4, 1080 BRUXELLES, MCMXC),
 757 #       pp 8-9.
 758 # LMT before 1892 was 0:17:30, according to the official journal of Belgium:
 759 #       Moniteur Belge, Samedi 30 Avril 1892, N.121.
 760 # Thanks to Pascal Delmoitie for these references.
 761 # The 1918 rules are listed for completeness; they apply to unoccupied Belgium.
 762 # Assume Brussels switched to WET in 1918 when the armistice took effect.
 763 #
 764 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 765 Rule    Belgium 1918    only    -       Mar      9       0:00s  1:00    S
 766 Rule    Belgium 1918    1919    -       Oct     Sat>=1       23:00s  0       -
 767 Rule    Belgium 1919    only    -       Mar      1      23:00s  1:00    S
 768 Rule    Belgium 1920    only    -       Feb     14      23:00s  1:00    S
 769 Rule    Belgium 1920    only    -       Oct     23      23:00s  0       -
 770 Rule    Belgium 1921    only    -       Mar     14      23:00s  1:00    S
 771 Rule    Belgium 1921    only    -       Oct     25      23:00s  0       -
 772 Rule    Belgium 1922    only    -       Mar     25      23:00s  1:00    S
 773 Rule    Belgium 1922    1927    -       Oct     Sat>=1       23:00s  0       -
 774 Rule    Belgium 1923    only    -       Apr     21      23:00s  1:00    S
 775 Rule    Belgium 1924    only    -       Mar     29      23:00s  1:00    S
 776 Rule    Belgium 1925    only    -       Apr      4      23:00s  1:00    S
 777 # DSH writes that a royal decree of 1926-02-22 specified the Sun following 3rd
 778 # Sat in Apr (except if it's Easter, in which case it's one Sunday earlier),
 779 # to Sun following 1st Sat in Oct, and that a royal decree of 1928-09-15
 780 # changed the transition times to 02:00 GMT.
 781 Rule    Belgium 1926    only    -       Apr     17      23:00s  1:00    S
 782 Rule    Belgium 1927    only    -       Apr      9      23:00s  1:00    S
 783 Rule    Belgium 1928    only    -       Apr     14      23:00s  1:00    S
 784 Rule    Belgium 1928    1938    -       Oct     Sun>=2        2:00s  0       -
 785 Rule    Belgium 1929    only    -       Apr     21       2:00s  1:00    S
 786 Rule    Belgium 1930    only    -       Apr     13       2:00s  1:00    S
 787 Rule    Belgium 1931    only    -       Apr     19       2:00s  1:00    S
 788 Rule    Belgium 1932    only    -       Apr      3       2:00s  1:00    S
 789 Rule    Belgium 1933    only    -       Mar     26       2:00s  1:00    S
 790 Rule    Belgium 1934    only    -       Apr      8       2:00s  1:00    S
 791 Rule    Belgium 1935    only    -       Mar     31       2:00s  1:00    S
 792 Rule    Belgium 1936    only    -       Apr     19       2:00s  1:00    S
 793 Rule    Belgium 1937    only    -       Apr      4       2:00s  1:00    S
 794 Rule    Belgium 1938    only    -       Mar     27       2:00s  1:00    S
 795 Rule    Belgium 1939    only    -       Apr     16       2:00s  1:00    S
 796 Rule    Belgium 1939    only    -       Nov     19       2:00s  0       -
 797 Rule    Belgium 1940    only    -       Feb     25       2:00s  1:00    S
 798 Rule    Belgium 1944    only    -       Sep     17       2:00s  0       -
 799 Rule    Belgium 1945    only    -       Apr      2       2:00s  1:00    S
 800 Rule    Belgium 1945    only    -       Sep     16       2:00s  0       -
 801 Rule    Belgium 1946    only    -       May     19       2:00s  1:00    S
 802 Rule    Belgium 1946    only    -       Oct      7       2:00s  0       -
 803 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 804 Zone    Europe/Brussels 0:17:30 -       LMT     1880
 805                         0:17:30 -       BMT     1892 May  1 12:00 # Brussels MT
 806                         0:00    -       WET     1914 Nov  8
 807                         1:00    -       CET     1916 May  1  0:00
 808                         1:00    C-Eur   CE%sT   1918 Nov 11 11:00u
 809                         0:00    Belgium WE%sT   1940 May 20  2:00s
 810                         1:00    C-Eur   CE%sT   1944 Sep  3
 811                         1:00    Belgium CE%sT   1977
 812                         1:00    EU      CE%sT
 813 
 814 # Bosnia and Herzegovina
 815 # see Serbia
 816 
 817 # Bulgaria
 818 #
 819 # From Plamen Simenov via Steffen Thorsen (1999-09-09):
 820 # A document of Government of Bulgaria (No.94/1997) says:
 821 # EET --> EETDST is in 03:00 Local time in last Sunday of March ...
 822 # EETDST --> EET is in 04:00 Local time in last Sunday of October
 823 #
 824 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 825 Rule    Bulg    1979    only    -       Mar     31      23:00   1:00    S
 826 Rule    Bulg    1979    only    -       Oct      1       1:00   0       -
 827 Rule    Bulg    1980    1982    -       Apr     Sat>=1       23:00   1:00    S
 828 Rule    Bulg    1980    only    -       Sep     29       1:00   0       -
 829 Rule    Bulg    1981    only    -       Sep     27       2:00   0       -
 830 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 831 Zone    Europe/Sofia    1:33:16 -       LMT     1880
 832                         1:56:56 -       IMT     1894 Nov 30 # Istanbul MT?
 833                         2:00    -       EET     1942 Nov  2  3:00
 834                         1:00    C-Eur   CE%sT   1945
 835                         1:00    -       CET     1945 Apr 2 3:00
 836                         2:00    -       EET     1979 Mar 31 23:00
 837                         2:00    Bulg    EE%sT   1982 Sep 26  2:00
 838                         2:00    C-Eur   EE%sT   1991
 839                         2:00    E-Eur   EE%sT   1997
 840                         2:00    EU      EE%sT
 841 
 842 # Croatia
 843 # see Serbia
 844 
 845 # Cyprus
 846 # Please see the `asia' file for Asia/Nicosia.
 847 
 848 # Czech Republic
 849 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 850 Rule    Czech   1945    only    -       Apr      8      2:00s   1:00    S
 851 Rule    Czech   1945    only    -       Nov     18      2:00s   0       -
 852 Rule    Czech   1946    only    -       May      6      2:00s   1:00    S
 853 Rule    Czech   1946    1949    -       Oct     Sun>=1       2:00s   0       -
 854 Rule    Czech   1947    only    -       Apr     20      2:00s   1:00    S
 855 Rule    Czech   1948    only    -       Apr     18      2:00s   1:00    S
 856 Rule    Czech   1949    only    -       Apr      9      2:00s   1:00    S
 857 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 858 Zone    Europe/Prague   0:57:44 -       LMT     1850
 859                         0:57:44 -       PMT     1891 Oct     # Prague Mean Time
 860                         1:00    C-Eur   CE%sT   1944 Sep 17 2:00s
 861                         1:00    Czech   CE%sT   1979
 862                         1:00    EU      CE%sT
 863 
 864 # Denmark, Faroe Islands, and Greenland
 865 
 866 # From Jesper Norgaard Welen (2005-04-26):
 867 # http://www.hum.aau.dk/~poe/tid/tine/DanskTid.htm says that the law
 868 # [introducing standard time] was in effect from 1894-01-01....
 869 # The page http://www.retsinfo.dk/_GETDOCI_/ACCN/A18930008330-REGL
 870 # confirms this, and states that the law was put forth 1893-03-29.
 871 #
 872 # The EU treaty with effect from 1973:
 873 # http://www.retsinfo.dk/_GETDOCI_/ACCN/A19722110030-REGL
 874 #
 875 # This provoked a new law from 1974 to make possible summer time changes
 876 # in subsequenet decrees with the law
 877 # http://www.retsinfo.dk/_GETDOCI_/ACCN/A19740022330-REGL
 878 #
 879 # It seems however that no decree was set forward until 1980.  I have
 880 # not found any decree, but in another related law, the effecting DST
 881 # changes are stated explicitly to be from 1980-04-06 at 02:00 to
 882 # 1980-09-28 at 02:00.  If this is true, this differs slightly from
 883 # the EU rule in that DST runs to 02:00, not 03:00.  We don't know
 884 # when Denmark began using the EU rule correctly, but we have only
 885 # confirmation of the 1980-time, so I presume it was correct in 1981:
 886 # The law is about the management of the extra hour, concerning
 887 # working hours reported and effect on obligatory-rest rules (which
 888 # was suspended on that night):
 889 # http://www.retsinfo.dk/_GETDOCI_/ACCN/C19801120554-REGL
 890 
 891 # From Jesper Norgaard Welen (2005-06-11):
 892 # The Herning Folkeblad (1980-09-26) reported that the night between
 893 # Saturday and Sunday the clock is set back from three to two.
 894 
 895 # From Paul Eggert (2005-06-11):
 896 # Hence the "02:00" of the 1980 law refers to standard time, not
 897 # wall-clock time, and so the EU rules were in effect in 1980.
 898 
 899 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 900 Rule    Denmark 1916    only    -       May     14      23:00   1:00    S
 901 Rule    Denmark 1916    only    -       Sep     30      23:00   0       -
 902 Rule    Denmark 1940    only    -       May     15       0:00   1:00    S
 903 Rule    Denmark 1945    only    -       Apr      2       2:00s  1:00    S
 904 Rule    Denmark 1945    only    -       Aug     15       2:00s  0       -
 905 Rule    Denmark 1946    only    -       May      1       2:00s  1:00    S
 906 Rule    Denmark 1946    only    -       Sep      1       2:00s  0       -
 907 Rule    Denmark 1947    only    -       May      4       2:00s  1:00    S
 908 Rule    Denmark 1947    only    -       Aug     10       2:00s  0       -
 909 Rule    Denmark 1948    only    -       May      9       2:00s  1:00    S
 910 Rule    Denmark 1948    only    -       Aug      8       2:00s  0       -
 911 #
 912 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 913 Zone Europe/Copenhagen   0:50:20 -      LMT     1890
 914                          0:50:20 -      CMT     1894 Jan  1 # Copenhagen MT
 915                          1:00   Denmark CE%sT   1942 Nov  2 2:00s
 916                          1:00   C-Eur   CE%sT   1945 Apr  2 2:00
 917                          1:00   Denmark CE%sT   1980
 918                          1:00   EU      CE%sT
 919 Zone Atlantic/Faroe     -0:27:04 -      LMT     1908 Jan 11     # Torshavn
 920                          0:00   -       WET     1981
 921                          0:00   EU      WE%sT
 922 #
 923 # From Paul Eggert (2004-10-31):
 924 # During World War II, Germany maintained secret manned weather stations in
 925 # East Greenland and Franz Josef Land, but we don't know their time zones.
 926 # My source for this is Wilhelm Dege's book mentioned under Svalbard.
 927 #
 928 # From Paul Eggert (2006-03-22):
 929 # Greenland joined the EU as part of Denmark, obtained home rule on 1979-05-01,
 930 # and left the EU on 1985-02-01.  It therefore should have been using EU
 931 # rules at least through 1984.  Shanks & Pottenger say Scoresbysund and Godthab
 932 # used C-Eur rules after 1980, but IATA SSIM (1991/1996) says they use EU
 933 # rules since at least 1991.  Assume EU rules since 1980.
 934 
 935 # From Gwillin Law (2001-06-06), citing
 936 # <http://www.statkart.no/efs/efshefter/2001/efs5-2001.pdf> (2001-03-15),
 937 # and with translations corrected by Steffen Thorsen:
 938 #
 939 # Greenland has four local times, and the relation to UTC
 940 # is according to the following time line:
 941 #
 942 # The military zone near Thule  UTC-4
 943 # Standard Greenland time       UTC-3
 944 # Scoresbysund                  UTC-1
 945 # Danmarkshavn                  UTC
 946 #
 947 # In the military area near Thule and in Danmarkshavn DST will not be
 948 # introduced.
 949 
 950 # From Rives McDow (2001-11-01):
 951 #
 952 # I correspond regularly with the Dansk Polarcenter, and wrote them at
 953 # the time to clarify the situation in Thule.  Unfortunately, I have
 954 # not heard back from them regarding my recent letter.  [But I have
 955 # info from earlier correspondence.]
 956 #
 957 # According to the center, a very small local time zone around Thule
 958 # Air Base keeps the time according to UTC-4, implementing daylight
 959 # savings using North America rules, changing the time at 02:00 local time....
 960 #
 961 # The east coast of Greenland north of the community of Scoresbysund
 962 # uses UTC in the same way as in Iceland, year round, with no dst.
 963 # There are just a few stations on this coast, including the
 964 # Danmarkshavn ICAO weather station mentioned in your September 29th
 965 # email.  The other stations are two sledge patrol stations in
 966 # Mestersvig and Daneborg, the air force base at Station Nord, and the
 967 # DPC research station at Zackenberg.
 968 #
 969 # Scoresbysund and two small villages nearby keep time UTC-1 and use
 970 # the same daylight savings time period as in West Greenland (Godthab).
 971 #
 972 # The rest of Greenland, including Godthab (this area, although it
 973 # includes central Greenland, is known as west Greenland), keeps time
 974 # UTC-3, with daylight savings methods according to European rules.
 975 #
 976 # It is common procedure to use UTC 0 in the wilderness of East and
 977 # North Greenland, because it is mainly Icelandic aircraft operators
 978 # maintaining traffic in these areas.  However, the official status of
 979 # this area is that it sticks with Godthab time.  This area might be
 980 # considered a dual time zone in some respects because of this.
 981 
 982 # From Rives McDow (2001-11-19):
 983 # I heard back from someone stationed at Thule; the time change took place
 984 # there at 2:00 AM.
 985 
 986 # From Paul Eggert (2006-03-22):
 987 # From 1997 on the CIA map shows Danmarkshavn on GMT;
 988 # the 1995 map as like Godthab.
 989 # For lack of better info, assume they were like Godthab before 1996.
 990 # startkart.no says Thule does not observe DST, but this is clearly an error,
 991 # so go with Shanks & Pottenger for Thule transitions until this year.
 992 # For 2007 on assume Thule will stay in sync with US DST rules.
 993 #
 994 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 995 Rule    Thule   1991    1992    -       Mar     lastSun 2:00    1:00    D
 996 Rule    Thule   1991    1992    -       Sep     lastSun 2:00    0       S
 997 Rule    Thule   1993    2006    -       Apr     Sun>=1       2:00    1:00    D
 998 Rule    Thule   1993    2006    -       Oct     lastSun 2:00    0       S
 999 Rule    Thule   2007    max     -       Mar     Sun>=8       2:00    1:00    D
1000 Rule    Thule   2007    max     -       Nov     Sun>=1       2:00    0       S
1001 #
1002 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1003 Zone America/Danmarkshavn -1:14:40 -    LMT     1916 Jul 28
1004                         -3:00   -       WGT     1980 Apr  6 2:00
1005                         -3:00   EU      WG%sT   1996
1006                         0:00    -       GMT
1007 Zone America/Scoresbysund -1:27:52 -    LMT     1916 Jul 28 # Ittoqqortoormiit
1008                         -2:00   -       CGT     1980 Apr  6 2:00
1009                         -2:00   C-Eur   CG%sT   1981 Mar 29
1010                         -1:00   EU      EG%sT
1011 Zone America/Godthab    -3:26:56 -      LMT     1916 Jul 28 # Nuuk
1012                         -3:00   -       WGT     1980 Apr  6 2:00
1013                         -3:00   EU      WG%sT
1014 Zone America/Thule      -4:35:08 -      LMT     1916 Jul 28 # Pituffik air base
1015                         -4:00   Thule   A%sT
1016 
1017 # Estonia
1018 # From Peter Ilieve (1994-10-15):
1019 # A relative in Tallinn confirms the accuracy of the data for 1989 onwards
1020 # [through 1994] and gives the legal authority for it,
1021 # a regulation of the Government of Estonia, No. 111 of 1989....
1022 #
1023 # From Peter Ilieve (1996-10-28):
1024 # [IATA SSIM (1992/1996) claims that the Baltic republics switch at 01:00s,
1025 # but a relative confirms that Estonia still switches at 02:00s, writing:]
1026 # ``I do not [know] exactly but there are some little different
1027 # (confusing) rules for International Air and Railway Transport Schedules
1028 # conversion in Sunday connected with end of summer time in Estonia....
1029 # A discussion is running about the summer time efficiency and effect on
1030 # human physiology.  It seems that Estonia maybe will not change to
1031 # summer time next spring.''
1032 
1033 # From Peter Ilieve (1998-11-04), heavily edited:
1034 # <a href="http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390">
1035 # The 1998-09-22 Estonian time law
1036 # </a>
1037 # refers to the Eighth Directive and cites the association agreement between
1038 # the EU and Estonia, ratified by the Estonian law (RT II 1995, 22--27, 120).
1039 #
1040 # I also asked [my relative] whether they use any standard abbreviation
1041 # for their standard and summer times. He says no, they use "suveaeg"
1042 # (summer time) and "talveaeg" (winter time).
1043 
1044 # From <a href="http://www.baltictimes.com/">The Baltic Times</a> (1999-09-09)
1045 # via Steffen Thorsen:
1046 # This year will mark the last time Estonia shifts to summer time,
1047 # a council of the ruling coalition announced Sept. 6....
1048 # But what this could mean for Estonia's chances of joining the European
1049 # Union are still unclear.  In 1994, the EU declared summer time compulsory
1050 # for all member states until 2001.  Brussels has yet to decide what to do
1051 # after that.
1052 
1053 # From Mart Oruaas (2000-01-29):
1054 # Regulation no. 301 (1999-10-12) obsoletes previous regulation
1055 # no. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all
1056 # the year round.  The regulation is effective 1999-11-01.
1057 
1058 # From Toomas Soome (2002-02-21):
1059 # The Estonian government has changed once again timezone politics.
1060 # Now we are using again EU rules.
1061 #
1062 # From Urmet Jaanes (2002-03-28):
1063 # The legislative reference is Government decree No. 84 on 2002-02-21.
1064 
1065 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1066 Zone    Europe/Tallinn  1:39:00 -       LMT     1880
1067                         1:39:00 -       TMT     1918 Feb # Tallinn Mean Time
1068                         1:00    C-Eur   CE%sT   1919 Jul
1069                         1:39:00 -       TMT     1921 May
1070                         2:00    -       EET     1940 Aug  6
1071                         3:00    -       MSK     1941 Sep 15
1072                         1:00    C-Eur   CE%sT   1944 Sep 22
1073                         3:00    Russia  MSK/MSD 1989 Mar 26 2:00s
1074                         2:00    1:00    EEST    1989 Sep 24 2:00s
1075                         2:00    C-Eur   EE%sT   1998 Sep 22
1076                         2:00    EU      EE%sT   1999 Nov  1
1077                         2:00    -       EET     2002 Feb 21
1078                         2:00    EU      EE%sT
1079 
1080 # Finland
1081 
1082 # From Hannu Strang (1994-09-25 06:03:37 UTC):
1083 # Well, here in Helsinki we're just changing from summer time to regular one,
1084 # and it's supposed to change at 4am...
1085 
1086 # From Janne Snabb (2010-0715):
1087 #
1088 # I noticed that the Finland data is not accurate for years 1981 and 1982.
1089 # During these two first trial years the DST adjustment was made one hour
1090 # earlier than in forthcoming years. Starting 1983 the adjustment was made
1091 # according to the central European standards.
1092 #
1093 # This is documented in Heikki Oja: Aikakirja 2007, published by The Almanac
1094 # Office of University of Helsinki, ISBN 952-10-3221-9, available online (in
1095 # Finnish) at
1096 #
1097 # <a href="http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf">
1098 # http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf
1099 # </a>
1100 #
1101 # Page 105 (56 in PDF version) has a handy table of all past daylight savings
1102 # transitions. It is easy enough to interpret without Finnish skills.
1103 #
1104 # This is also confirmed by Finnish Broadcasting Company's archive at:
1105 #
1106 # <a href="http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401">
1107 # http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401
1108 # </a>
1109 #
1110 # The news clip from 1981 says that "the time between 2 and 3 o'clock does not
1111 # exist tonight."
1112 
1113 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1114 Rule    Finland 1942    only    -       Apr     3       0:00    1:00    S
1115 Rule    Finland 1942    only    -       Oct     3       0:00    0       -
1116 Rule    Finland 1981    1982    -       Mar     lastSun 2:00    1:00    S
1117 Rule    Finland 1981    1982    -       Sep     lastSun 3:00    0       -
1118 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1119 Zone    Europe/Helsinki 1:39:52 -       LMT     1878 May 31
1120                         1:39:52 -       HMT     1921 May    # Helsinki Mean Time
1121                         2:00    Finland EE%sT   1983
1122                         2:00    EU      EE%sT
1123 
1124 # Aaland Is
1125 Link    Europe/Helsinki Europe/Mariehamn
1126 
1127 
1128 # France
1129 
1130 # From Ciro Discepolo (2000-12-20):
1131 #
1132 # Henri Le Corre, Regimes Horaires pour le monde entier, Editions
1133 # Traditionnelles - Paris 2 books, 1993
1134 #
1135 # Gabriel, Traite de l'heure dans le monde, Guy Tredaniel editeur,
1136 # Paris, 1991
1137 #
1138 # Francoise Gauquelin, Problemes de l'heure resolus en astrologie,
1139 # Guy tredaniel, Paris 1987
1140 
1141 
1142 #
1143 # Shank & Pottenger seem to use `24:00' ambiguously; resolve it with Whitman.
1144 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1145 Rule    France  1916    only    -       Jun     14      23:00s  1:00    S
1146 Rule    France  1916    1919    -       Oct     Sun>=1       23:00s  0       -
1147 Rule    France  1917    only    -       Mar     24      23:00s  1:00    S
1148 Rule    France  1918    only    -       Mar      9      23:00s  1:00    S
1149 Rule    France  1919    only    -       Mar      1      23:00s  1:00    S
1150 Rule    France  1920    only    -       Feb     14      23:00s  1:00    S
1151 Rule    France  1920    only    -       Oct     23      23:00s  0       -
1152 Rule    France  1921    only    -       Mar     14      23:00s  1:00    S
1153 Rule    France  1921    only    -       Oct     25      23:00s  0       -
1154 Rule    France  1922    only    -       Mar     25      23:00s  1:00    S
1155 # DSH writes that a law of 1923-05-24 specified 3rd Sat in Apr at 23:00 to 1st
1156 # Sat in Oct at 24:00; and that in 1930, because of Easter, the transitions
1157 # were Apr 12 and Oct 5.  Go with Shanks & Pottenger.
1158 Rule    France  1922    1938    -       Oct     Sat>=1       23:00s  0       -
1159 Rule    France  1923    only    -       May     26      23:00s  1:00    S
1160 Rule    France  1924    only    -       Mar     29      23:00s  1:00    S
1161 Rule    France  1925    only    -       Apr      4      23:00s  1:00    S
1162 Rule    France  1926    only    -       Apr     17      23:00s  1:00    S
1163 Rule    France  1927    only    -       Apr      9      23:00s  1:00    S
1164 Rule    France  1928    only    -       Apr     14      23:00s  1:00    S
1165 Rule    France  1929    only    -       Apr     20      23:00s  1:00    S
1166 Rule    France  1930    only    -       Apr     12      23:00s  1:00    S
1167 Rule    France  1931    only    -       Apr     18      23:00s  1:00    S
1168 Rule    France  1932    only    -       Apr      2      23:00s  1:00    S
1169 Rule    France  1933    only    -       Mar     25      23:00s  1:00    S
1170 Rule    France  1934    only    -       Apr      7      23:00s  1:00    S
1171 Rule    France  1935    only    -       Mar     30      23:00s  1:00    S
1172 Rule    France  1936    only    -       Apr     18      23:00s  1:00    S
1173 Rule    France  1937    only    -       Apr      3      23:00s  1:00    S
1174 Rule    France  1938    only    -       Mar     26      23:00s  1:00    S
1175 Rule    France  1939    only    -       Apr     15      23:00s  1:00    S
1176 Rule    France  1939    only    -       Nov     18      23:00s  0       -
1177 Rule    France  1940    only    -       Feb     25       2:00   1:00    S
1178 # The French rules for 1941-1944 were not used in Paris, but Shanks & Pottenger
1179 # write that they were used in Monaco and in many French locations.
1180 # Le Corre writes that the upper limit of the free zone was Arneguy, Orthez,
1181 # Mont-de-Marsan, Bazas, Langon, Lamotte-Montravel, Marouil, La
1182 # Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Descartes,
1183 # Loches, Montrichard, Vierzon, Bourges, Moulins, Digoin,
1184 # Paray-le-Monial, Montceau-les-Mines, Chalons-sur-Saone, Arbois,
1185 # Dole, Morez, St-Claude, and Collonges (Haute-Savoie).
1186 Rule    France  1941    only    -       May      5       0:00   2:00    M # Midsummer
1187 # Shanks & Pottenger say this transition occurred at Oct 6 1:00,
1188 # but go with Denis Excoffier (1997-12-12),
1189 # who quotes the Ephemerides Astronomiques for 1998 from Bureau des Longitudes
1190 # as saying 5/10/41 22hUT.
1191 Rule    France  1941    only    -       Oct      6       0:00   1:00    S
1192 Rule    France  1942    only    -       Mar      9       0:00   2:00    M
1193 Rule    France  1942    only    -       Nov      2       3:00   1:00    S
1194 Rule    France  1943    only    -       Mar     29       2:00   2:00    M
1195 Rule    France  1943    only    -       Oct      4       3:00   1:00    S
1196 Rule    France  1944    only    -       Apr      3       2:00   2:00    M
1197 Rule    France  1944    only    -       Oct      8       1:00   1:00    S
1198 Rule    France  1945    only    -       Apr      2       2:00   2:00    M
1199 Rule    France  1945    only    -       Sep     16       3:00   0       -
1200 # Shanks & Pottenger give Mar 28 2:00 and Sep 26 3:00;
1201 # go with Excoffier's 28/3/76 0hUT and 25/9/76 23hUT.
1202 Rule    France  1976    only    -       Mar     28       1:00   1:00    S
1203 Rule    France  1976    only    -       Sep     26       1:00   0       -
1204 # Shanks & Pottenger give 0:09:20 for Paris Mean Time, and Whitman 0:09:05,
1205 # but Howse quotes the actual French legislation as saying 0:09:21.
1206 # Go with Howse.  Howse writes that the time in France was officially based
1207 # on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC.
1208 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1209 Zone    Europe/Paris    0:09:21 -       LMT     1891 Mar 15  0:01
1210                         0:09:21 -       PMT     1911 Mar 11  0:01  # Paris MT
1211 # Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre.
1212                         0:00    France  WE%sT   1940 Jun 14 23:00
1213 # Le Corre says Paris stuck with occupied-France time after the liberation;
1214 # go with Shanks & Pottenger.
1215                         1:00    C-Eur   CE%sT   1944 Aug 25
1216                         0:00    France  WE%sT   1945 Sep 16  3:00
1217                         1:00    France  CE%sT   1977
1218                         1:00    EU      CE%sT
1219 
1220 # Germany
1221 
1222 # From Markus Kuhn (1998-09-29):
1223 # The German time zone web site by the Physikalisch-Technische
1224 # Bundesanstalt contains DST information back to 1916.
1225 # [See tz-link.htm for the URL.]
1226 
1227 # From Joerg Schilling (2002-10-23):
1228 # In 1945, Berlin was switched to Moscow Summer time (GMT+4) by
1229 # <a href="http://www.dhm.de/lemo/html/biografien/BersarinNikolai/">
1230 # General [Nikolai] Bersarin</a>.
1231 
1232 # From Paul Eggert (2003-03-08):
1233 # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf">
1234 # http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf
1235 # </a>
1236 # says that Bersarin issued an order to use Moscow time on May 20.
1237 # However, Moscow did not observe daylight saving in 1945, so
1238 # this was equivalent to CEMT (GMT+3), not GMT+4.
1239 
1240 
1241 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1242 Rule    Germany 1946    only    -       Apr     14      2:00s   1:00    S
1243 Rule    Germany 1946    only    -       Oct      7      2:00s   0       -
1244 Rule    Germany 1947    1949    -       Oct     Sun>=1       2:00s   0       -
1245 # http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition
1246 # occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger.
1247 # Go with the PTB.
1248 Rule    Germany 1947    only    -       Apr      6      3:00s   1:00    S
1249 Rule    Germany 1947    only    -       May     11      2:00s   2:00    M
1250 Rule    Germany 1947    only    -       Jun     29      3:00    1:00    S
1251 Rule    Germany 1948    only    -       Apr     18      2:00s   1:00    S
1252 Rule    Germany 1949    only    -       Apr     10      2:00s   1:00    S
1253 
1254 Rule SovietZone 1945    only    -       May     24      2:00    2:00    M # Midsummer
1255 Rule SovietZone 1945    only    -       Sep     24      3:00    1:00    S
1256 Rule SovietZone 1945    only    -       Nov     18      2:00s   0       -
1257 
1258 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1259 Zone    Europe/Berlin   0:53:28 -       LMT     1893 Apr
1260                         1:00    C-Eur   CE%sT   1945 May 24 2:00
1261                         1:00 SovietZone CE%sT   1946
1262                         1:00    Germany CE%sT   1980
1263                         1:00    EU      CE%sT
1264 
1265 # Georgia
1266 # Please see the "asia" file for Asia/Tbilisi.
1267 # Herodotus (Histories, IV.45) says Georgia north of the Phasis (now Rioni)
1268 # is in Europe.  Our reference location Tbilisi is in the Asian part.
1269 
1270 # Gibraltar
1271 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1272 Zone Europe/Gibraltar   -0:21:24 -      LMT     1880 Aug  2 0:00s
1273                         0:00    GB-Eire %s      1957 Apr 14 2:00
1274                         1:00    -       CET     1982
1275                         1:00    EU      CE%sT
1276 
1277 # Greece
1278 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1279 # Whitman gives 1932 Jul 5 - Nov 1; go with Shanks & Pottenger.
1280 Rule    Greece  1932    only    -       Jul      7      0:00    1:00    S
1281 Rule    Greece  1932    only    -       Sep      1      0:00    0       -
1282 # Whitman gives 1941 Apr 25 - ?; go with Shanks & Pottenger.
1283 Rule    Greece  1941    only    -       Apr      7      0:00    1:00    S
1284 # Whitman gives 1942 Feb 2 - ?; go with Shanks & Pottenger.
1285 Rule    Greece  1942    only    -       Nov      2      3:00    0       -
1286 Rule    Greece  1943    only    -       Mar     30      0:00    1:00    S
1287 Rule    Greece  1943    only    -       Oct      4      0:00    0       -
1288 # Whitman gives 1944 Oct 3 - Oct 31; go with Shanks & Pottenger.
1289 Rule    Greece  1952    only    -       Jul      1      0:00    1:00    S
1290 Rule    Greece  1952    only    -       Nov      2      0:00    0       -
1291 Rule    Greece  1975    only    -       Apr     12      0:00s   1:00    S
1292 Rule    Greece  1975    only    -       Nov     26      0:00s   0       -
1293 Rule    Greece  1976    only    -       Apr     11      2:00s   1:00    S
1294 Rule    Greece  1976    only    -       Oct     10      2:00s   0       -
1295 Rule    Greece  1977    1978    -       Apr     Sun>=1       2:00s   1:00    S
1296 Rule    Greece  1977    only    -       Sep     26      2:00s   0       -
1297 Rule    Greece  1978    only    -       Sep     24      4:00    0       -
1298 Rule    Greece  1979    only    -       Apr      1      9:00    1:00    S
1299 Rule    Greece  1979    only    -       Sep     29      2:00    0       -
1300 Rule    Greece  1980    only    -       Apr      1      0:00    1:00    S
1301 Rule    Greece  1980    only    -       Sep     28      0:00    0       -
1302 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1303 Zone    Europe/Athens   1:34:52 -       LMT     1895 Sep 14
1304                         1:34:52 -       AMT     1916 Jul 28 0:01     # Athens MT
1305                         2:00    Greece  EE%sT   1941 Apr 30
1306                         1:00    Greece  CE%sT   1944 Apr  4
1307                         2:00    Greece  EE%sT   1981
1308                         # Shanks & Pottenger say it switched to C-Eur in 1981;
1309                         # go with EU instead, since Greece joined it on Jan 1.
1310                         2:00    EU      EE%sT
1311 
1312 # Hungary
1313 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1314 Rule    Hungary 1918    only    -       Apr      1       3:00   1:00    S
1315 Rule    Hungary 1918    only    -       Sep     29       3:00   0       -
1316 Rule    Hungary 1919    only    -       Apr     15       3:00   1:00    S
1317 Rule    Hungary 1919    only    -       Sep     15       3:00   0       -
1318 Rule    Hungary 1920    only    -       Apr      5       3:00   1:00    S
1319 Rule    Hungary 1920    only    -       Sep     30       3:00   0       -
1320 Rule    Hungary 1945    only    -       May      1      23:00   1:00    S
1321 Rule    Hungary 1945    only    -       Nov      3       0:00   0       -
1322 Rule    Hungary 1946    only    -       Mar     31       2:00s  1:00    S
1323 Rule    Hungary 1946    1949    -       Oct     Sun>=1        2:00s  0       -
1324 Rule    Hungary 1947    1949    -       Apr     Sun>=4        2:00s  1:00    S
1325 Rule    Hungary 1950    only    -       Apr     17       2:00s  1:00    S
1326 Rule    Hungary 1950    only    -       Oct     23       2:00s  0       -
1327 Rule    Hungary 1954    1955    -       May     23       0:00   1:00    S
1328 Rule    Hungary 1954    1955    -       Oct      3       0:00   0       -
1329 Rule    Hungary 1956    only    -       Jun     Sun>=1        0:00   1:00    S
1330 Rule    Hungary 1956    only    -       Sep     lastSun  0:00   0       -
1331 Rule    Hungary 1957    only    -       Jun     Sun>=1        1:00   1:00    S
1332 Rule    Hungary 1957    only    -       Sep     lastSun  3:00   0       -
1333 Rule    Hungary 1980    only    -       Apr      6       1:00   1:00    S
1334 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1335 Zone    Europe/Budapest 1:16:20 -       LMT     1890 Oct
1336                         1:00    C-Eur   CE%sT   1918
1337                         1:00    Hungary CE%sT   1941 Apr  6  2:00
1338                         1:00    C-Eur   CE%sT   1945
1339                         1:00    Hungary CE%sT   1980 Sep 28  2:00s
1340                         1:00    EU      CE%sT
1341 
1342 # Iceland
1343 #
1344 # From Adam David (1993-11-06):
1345 # The name of the timezone in Iceland for system / mail / news purposes is GMT.
1346 #
1347 # (1993-12-05):
1348 # This material is paraphrased from the 1988 edition of the University of
1349 # Iceland Almanak.
1350 #
1351 # From January 1st, 1908 the whole of Iceland was standardised at 1 hour
1352 # behind GMT. Previously, local mean solar time was used in different parts
1353 # of Iceland, the almanak had been based on Reykjavik mean solar time which
1354 # was 1 hour and 28 minutes behind GMT.
1355 #
1356 # "first day of winter" referred to [below] means the first day of the 26 weeks
1357 # of winter, according to the old icelandic calendar that dates back to the
1358 # time the norsemen first settled Iceland.  The first day of winter is always
1359 # Saturday, but is not dependent on the Julian or Gregorian calendars.
1360 #
1361 # (1993-12-10):
1362 # I have a reference from the Oxford Icelandic-English dictionary for the
1363 # beginning of winter, which ties it to the ecclesiastical calendar (and thus
1364 # to the julian/gregorian calendar) over the period in question.
1365 #       the winter begins on the Saturday next before St. Luke's day
1366 #       (old style), or on St. Luke's day, if a Saturday.
1367 # St. Luke's day ought to be traceable from ecclesiastical sources. "old style"
1368 # might be a reference to the Julian calendar as opposed to Gregorian, or it
1369 # might mean something else (???).
1370 #
1371 # From Paul Eggert (2006-03-22):
1372 # The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points.
1373 # We go with the Almanak, except for one claim from Shanks & Pottenger, namely
1374 # that Reykavik was 21W57 from 1837 to 1908, local mean time before that.
1375 #
1376 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1377 Rule    Iceland 1917    1918    -       Feb     19      23:00   1:00    S
1378 Rule    Iceland 1917    only    -       Oct     21       1:00   0       -
1379 Rule    Iceland 1918    only    -       Nov     16       1:00   0       -
1380 Rule    Iceland 1939    only    -       Apr     29      23:00   1:00    S
1381 Rule    Iceland 1939    only    -       Nov     29       2:00   0       -
1382 Rule    Iceland 1940    only    -       Feb     25       2:00   1:00    S
1383 Rule    Iceland 1940    only    -       Nov      3       2:00   0       -
1384 Rule    Iceland 1941    only    -       Mar      2       1:00s  1:00    S
1385 Rule    Iceland 1941    only    -       Nov      2       1:00s  0       -
1386 Rule    Iceland 1942    only    -       Mar      8       1:00s  1:00    S
1387 Rule    Iceland 1942    only    -       Oct     25       1:00s  0       -
1388 # 1943-1946 - first Sunday in March until first Sunday in winter
1389 Rule    Iceland 1943    1946    -       Mar     Sun>=1        1:00s  1:00    S
1390 Rule    Iceland 1943    1948    -       Oct     Sun>=22       1:00s  0       -
1391 # 1947-1967 - first Sunday in April until first Sunday in winter
1392 Rule    Iceland 1947    1967    -       Apr     Sun>=1        1:00s  1:00    S
1393 # 1949 Oct transition delayed by 1 week
1394 Rule    Iceland 1949    only    -       Oct     30       1:00s  0       -
1395 Rule    Iceland 1950    1966    -       Oct     Sun>=22       1:00s  0       -
1396 Rule    Iceland 1967    only    -       Oct     29       1:00s  0       -
1397 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1398 Zone Atlantic/Reykjavik -1:27:24 -      LMT     1837
1399                         -1:27:48 -      RMT     1908 # Reykjavik Mean Time?
1400                         -1:00   Iceland IS%sT   1968 Apr 7 1:00s
1401                          0:00   -       GMT
1402 
1403 # Italy
1404 #
1405 # From Paul Eggert (2001-03-06):
1406 # Sicily and Sardinia each had their own time zones from 1866 to 1893,
1407 # called Palermo Time (+00:53:28) and Cagliari Time (+00:36:32).
1408 # During World War II, German-controlled Italy used German time.
1409 # But these events all occurred before the 1970 cutoff,
1410 # so record only the time in Rome.
1411 #
1412 # From Paul Eggert (2006-03-22):
1413 # For Italian DST we have three sources: Shanks & Pottenger, Whitman, and
1414 # F. Pollastri
1415 # <a href="http://toi.iriti.cnr.it/uk/ienitlt.html">
1416 # Day-light Saving Time in Italy (2006-02-03)
1417 # </a>
1418 # (`FP' below), taken from an Italian National Electrotechnical Institute
1419 # publication. When the three sources disagree, guess who's right, as follows:
1420 #
1421 # year  FP      Shanks&P. (S)       Whitman (W)     Go with:
1422 # 1916  06-03   06-03 24:00     06-03 00:00     FP & W
1423 #       09-30   09-30 24:00     09-30 01:00     FP; guess 24:00s
1424 # 1917  04-01   03-31 24:00     03-31 00:00     FP & S
1425 #       09-30   09-29 24:00     09-30 01:00     FP & W
1426 # 1918  03-09   03-09 24:00     03-09 00:00     FP & S
1427 #       10-06   10-05 24:00     10-06 01:00     FP & W
1428 # 1919  03-01   03-01 24:00     03-01 00:00     FP & S
1429 #       10-04   10-04 24:00     10-04 01:00     FP; guess 24:00s
1430 # 1920  03-20   03-20 24:00     03-20 00:00     FP & S
1431 #       09-18   09-18 24:00     10-01 01:00     FP; guess 24:00s
1432 # 1944  04-02   04-03 02:00                     S (see C-Eur)
1433 #       09-16   10-02 03:00                     FP; guess 24:00s
1434 # 1945  09-14   09-16 24:00                     FP; guess 24:00s
1435 # 1970  05-21   05-31 00:00                     S
1436 #       09-20   09-27 00:00                     S
1437 #
1438 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1439 Rule    Italy   1916    only    -       Jun      3      0:00s   1:00    S
1440 Rule    Italy   1916    only    -       Oct      1      0:00s   0       -
1441 Rule    Italy   1917    only    -       Apr      1      0:00s   1:00    S
1442 Rule    Italy   1917    only    -       Sep     30      0:00s   0       -
1443 Rule    Italy   1918    only    -       Mar     10      0:00s   1:00    S
1444 Rule    Italy   1918    1919    -       Oct     Sun>=1       0:00s   0       -
1445 Rule    Italy   1919    only    -       Mar      2      0:00s   1:00    S
1446 Rule    Italy   1920    only    -       Mar     21      0:00s   1:00    S
1447 Rule    Italy   1920    only    -       Sep     19      0:00s   0       -
1448 Rule    Italy   1940    only    -       Jun     15      0:00s   1:00    S
1449 Rule    Italy   1944    only    -       Sep     17      0:00s   0       -
1450 Rule    Italy   1945    only    -       Apr      2      2:00    1:00    S
1451 Rule    Italy   1945    only    -       Sep     15      0:00s   0       -
1452 Rule    Italy   1946    only    -       Mar     17      2:00s   1:00    S
1453 Rule    Italy   1946    only    -       Oct      6      2:00s   0       -
1454 Rule    Italy   1947    only    -       Mar     16      0:00s   1:00    S
1455 Rule    Italy   1947    only    -       Oct      5      0:00s   0       -
1456 Rule    Italy   1948    only    -       Feb     29      2:00s   1:00    S
1457 Rule    Italy   1948    only    -       Oct      3      2:00s   0       -
1458 Rule    Italy   1966    1968    -       May     Sun>=22      0:00    1:00    S
1459 Rule    Italy   1966    1969    -       Sep     Sun>=22      0:00    0       -
1460 Rule    Italy   1969    only    -       Jun      1      0:00    1:00    S
1461 Rule    Italy   1970    only    -       May     31      0:00    1:00    S
1462 Rule    Italy   1970    only    -       Sep     lastSun 0:00    0       -
1463 Rule    Italy   1971    1972    -       May     Sun>=22      0:00    1:00    S
1464 Rule    Italy   1971    only    -       Sep     lastSun 1:00    0       -
1465 Rule    Italy   1972    only    -       Oct      1      0:00    0       -
1466 Rule    Italy   1973    only    -       Jun      3      0:00    1:00    S
1467 Rule    Italy   1973    1974    -       Sep     lastSun 0:00    0       -
1468 Rule    Italy   1974    only    -       May     26      0:00    1:00    S
1469 Rule    Italy   1975    only    -       Jun      1      0:00s   1:00    S
1470 Rule    Italy   1975    1977    -       Sep     lastSun 0:00s   0       -
1471 Rule    Italy   1976    only    -       May     30      0:00s   1:00    S
1472 Rule    Italy   1977    1979    -       May     Sun>=22      0:00s   1:00    S
1473 Rule    Italy   1978    only    -       Oct      1      0:00s   0       -
1474 Rule    Italy   1979    only    -       Sep     30      0:00s   0       -
1475 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1476 Zone    Europe/Rome     0:49:56 -       LMT     1866 Sep 22
1477                         0:49:56 -       RMT     1893 Nov  1 0:00s # Rome Mean
1478                         1:00    Italy   CE%sT   1942 Nov  2 2:00s
1479                         1:00    C-Eur   CE%sT   1944 Jul
1480                         1:00    Italy   CE%sT   1980
1481                         1:00    EU      CE%sT
1482 
1483 Link    Europe/Rome     Europe/Vatican
1484 Link    Europe/Rome     Europe/San_Marino
1485 
1486 # Latvia
1487 
1488 # From Liene Kanepe (1998-09-17):
1489 
1490 # I asked about this matter Scientific Secretary of the Institute of Astronomy
1491 # of The University of Latvia Dr. paed Mr. Ilgonis Vilks. I also searched the
1492 # correct data in juridical acts and I found some juridical documents about
1493 # changes in the counting of time in Latvia from 1981....
1494 #
1495 # Act No.35 of the Council of Ministers of Latvian SSR of 1981-01-22 ...
1496 # according to the Act No.925 of the Council of Ministers of USSR of 1980-10-24
1497 # ...: all year round the time of 2nd time zone + 1 hour, in addition turning
1498 # the hands of the clock 1 hour forward on 1 April at 00:00 (GMT 31 March 21:00)
1499 # and 1 hour backward on the 1 October at 00:00 (GMT 30 September 20:00).
1500 #
1501 # Act No.592 of the Council of Ministers of Latvian SSR of 1984-09-24 ...
1502 # according to the Act No.967 of the Council of Ministers of USSR of 1984-09-13
1503 # ...: all year round the time of 2nd time zone + 1 hour, in addition turning
1504 # the hands of the clock 1 hour forward on the last Sunday of March at 02:00
1505 # (GMT 23:00 on the previous day) and 1 hour backward on the last Sunday of
1506 # September at 03:00 (GMT 23:00 on the previous day).
1507 #
1508 # Act No.81 of the Council of Ministers of Latvian SSR of 1989-03-22 ...
1509 # according to the Act No.227 of the Council of Ministers of USSR of 1989-03-14
1510 # ...: since the last Sunday of March 1989 in Lithuanian SSR, Latvian SSR,
1511 # Estonian SSR and Kaliningrad region of Russian Federation all year round the
1512 # time of 2nd time zone (Moscow time minus one hour). On the territory of Latvia
1513 # transition to summer time is performed on the last Sunday of March at 02:00
1514 # (GMT 00:00), turning the hands of the clock 1 hour forward.  The end of
1515 # daylight saving time is performed on the last Sunday of September at 03:00
1516 # (GMT 00:00), turning the hands of the clock 1 hour backward. Exception is
1517 # 1989-03-26, when we must not turn the hands of the clock....
1518 #
1519 # The Regulations of the Cabinet of Ministers of the Republic of Latvia of
1520 # 1997-01-21 on transition to Summer time ... established the same order of
1521 # daylight savings time settings as in the States of the European Union.
1522 
1523 # From Andrei Ivanov (2000-03-06):
1524 # This year Latvia will not switch to Daylight Savings Time (as specified in
1525 # <a href="http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm">
1526 # The Regulations of the Cabinet of Ministers of the Rep. of Latvia of
1527 # 29-Feb-2000 (#79)</a>, in Latvian for subscribers only).
1528 
1529 # <a href="http://www.rferl.org/newsline/2001/01/3-CEE/cee-030101.html">
1530 # From RFE/RL Newsline (2001-01-03), noted after a heads-up by Rives McDow:
1531 # </a>
1532 # The Latvian government on 2 January decided that the country will
1533 # institute daylight-saving time this spring, LETA reported.
1534 # Last February the three Baltic states decided not to turn back their
1535 # clocks one hour in the spring....
1536 # Minister of Economy Aigars Kalvitis noted that Latvia had too few
1537 # daylight hours and thus decided to comply with a draft European
1538 # Commission directive that provides for instituting daylight-saving
1539 # time in EU countries between 2002 and 2006. The Latvian government
1540 # urged Lithuania and Estonia to adopt a similar time policy, but it
1541 # appears that they will not do so....
1542 
1543 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1544 Rule    Latvia  1989    1996    -       Mar     lastSun  2:00s  1:00    S
1545 Rule    Latvia  1989    1996    -       Sep     lastSun  2:00s  0       -
1546 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1547 Zone    Europe/Riga     1:36:24 -       LMT     1880
1548                         1:36:24 -       RMT     1918 Apr 15 2:00 #Riga Mean Time
1549                         1:36:24 1:00    LST     1918 Sep 16 3:00 #Latvian Summer
1550                         1:36:24 -       RMT     1919 Apr  1 2:00
1551                         1:36:24 1:00    LST     1919 May 22 3:00
1552                         1:36:24 -       RMT     1926 May 11
1553                         2:00    -       EET     1940 Aug  5
1554                         3:00    -       MSK     1941 Jul
1555                         1:00    C-Eur   CE%sT   1944 Oct 13
1556                         3:00    Russia  MSK/MSD 1989 Mar lastSun 2:00s
1557                         2:00    1:00    EEST    1989 Sep lastSun 2:00s
1558                         2:00    Latvia  EE%sT   1997 Jan 21
1559                         2:00    EU      EE%sT   2000 Feb 29
1560                         2:00    -       EET     2001 Jan  2
1561                         2:00    EU      EE%sT
1562 
1563 # Liechtenstein
1564 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1565 Zone    Europe/Vaduz    0:38:04 -       LMT     1894 Jun
1566                         1:00    -       CET     1981
1567                         1:00    EU      CE%sT
1568 
1569 # Lithuania
1570 
1571 # From Paul Eggert (1996-11-22):
1572 # IATA SSIM (1992/1996) says Lithuania uses W-Eur rules, but since it is
1573 # known to be wrong about Estonia and Latvia, assume it's wrong here too.
1574 
1575 # From Marius Gedminas (1998-08-07):
1576 # I would like to inform that in this year Lithuanian time zone
1577 # (Europe/Vilnius) was changed.
1578 
1579 # From <a href="http://www.elta.lt/">ELTA</a> No. 972 (2582) (1999-09-29),
1580 # via Steffen Thorsen:
1581 # Lithuania has shifted back to the second time zone (GMT plus two hours)
1582 # to be valid here starting from October 31,
1583 # as decided by the national government on Wednesday....
1584 # The Lithuanian government also announced plans to consider a
1585 # motion to give up shifting to summer time in spring, as it was
1586 # already done by Estonia.
1587 
1588 # From the <a href="http://www.tourism.lt/informa/ff.htm">
1589 # Fact File, Lithuanian State Department of Tourism
1590 # </a> (2000-03-27): Local time is GMT+2 hours ..., no daylight saving.
1591 
1592 # From a user via Klaus Marten (2003-02-07):
1593 # As a candidate for membership of the European Union, Lithuania will
1594 # observe Summer Time in 2003, changing its clocks at the times laid
1595 # down in EU Directive 2000/84 of 19.I.01 (i.e. at the same times as its
1596 # neighbour Latvia). The text of the Lithuanian government Order of
1597 # 7.XI.02 to this effect can be found at
1598 # http://www.lrvk.lt/nut/11/n1749.htm
1599 
1600 
1601 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1602 Zone    Europe/Vilnius  1:41:16 -       LMT     1880
1603                         1:24:00 -       WMT     1917        # Warsaw Mean Time
1604                         1:35:36 -       KMT     1919 Oct 10 # Kaunas Mean Time
1605                         1:00    -       CET     1920 Jul 12
1606                         2:00    -       EET     1920 Oct  9
1607                         1:00    -       CET     1940 Aug  3
1608                         3:00    -       MSK     1941 Jun 24
1609                         1:00    C-Eur   CE%sT   1944 Aug
1610                         3:00    Russia  MSK/MSD 1991 Mar 31 2:00s
1611                         2:00    1:00    EEST    1991 Sep 29 2:00s
1612                         2:00    C-Eur   EE%sT   1998
1613                         2:00    -       EET     1998 Mar 29 1:00u
1614                         1:00    EU      CE%sT   1999 Oct 31 1:00u
1615                         2:00    -       EET     2003 Jan  1
1616                         2:00    EU      EE%sT
1617 
1618 # Luxembourg
1619 # Whitman disagrees with most of these dates in minor ways;
1620 # go with Shanks & Pottenger.
1621 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1622 Rule    Lux     1916    only    -       May     14      23:00   1:00    S
1623 Rule    Lux     1916    only    -       Oct      1       1:00   0       -
1624 Rule    Lux     1917    only    -       Apr     28      23:00   1:00    S
1625 Rule    Lux     1917    only    -       Sep     17       1:00   0       -
1626 Rule    Lux     1918    only    -       Apr     Mon>=15       2:00s  1:00    S
1627 Rule    Lux     1918    only    -       Sep     Mon>=15       2:00s  0       -
1628 Rule    Lux     1919    only    -       Mar      1      23:00   1:00    S
1629 Rule    Lux     1919    only    -       Oct      5       3:00   0       -
1630 Rule    Lux     1920    only    -       Feb     14      23:00   1:00    S
1631 Rule    Lux     1920    only    -       Oct     24       2:00   0       -
1632 Rule    Lux     1921    only    -       Mar     14      23:00   1:00    S
1633 Rule    Lux     1921    only    -       Oct     26       2:00   0       -
1634 Rule    Lux     1922    only    -       Mar     25      23:00   1:00    S
1635 Rule    Lux     1922    only    -       Oct     Sun>=2        1:00   0       -
1636 Rule    Lux     1923    only    -       Apr     21      23:00   1:00    S
1637 Rule    Lux     1923    only    -       Oct     Sun>=2        2:00   0       -
1638 Rule    Lux     1924    only    -       Mar     29      23:00   1:00    S
1639 Rule    Lux     1924    1928    -       Oct     Sun>=2        1:00   0       -
1640 Rule    Lux     1925    only    -       Apr      5      23:00   1:00    S
1641 Rule    Lux     1926    only    -       Apr     17      23:00   1:00    S
1642 Rule    Lux     1927    only    -       Apr      9      23:00   1:00    S
1643 Rule    Lux     1928    only    -       Apr     14      23:00   1:00    S
1644 Rule    Lux     1929    only    -       Apr     20      23:00   1:00    S
1645 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1646 Zone Europe/Luxembourg  0:24:36 -       LMT     1904 Jun
1647                         1:00    Lux     CE%sT   1918 Nov 25
1648                         0:00    Lux     WE%sT   1929 Oct  6 2:00s
1649                         0:00    Belgium WE%sT   1940 May 14 3:00
1650                         1:00    C-Eur   WE%sT   1944 Sep 18 3:00
1651                         1:00    Belgium CE%sT   1977
1652                         1:00    EU      CE%sT
1653 
1654 # Macedonia
1655 # see Serbia
1656 
1657 # Malta
1658 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1659 Rule    Malta   1973    only    -       Mar     31      0:00s   1:00    S
1660 Rule    Malta   1973    only    -       Sep     29      0:00s   0       -
1661 Rule    Malta   1974    only    -       Apr     21      0:00s   1:00    S
1662 Rule    Malta   1974    only    -       Sep     16      0:00s   0       -
1663 Rule    Malta   1975    1979    -       Apr     Sun>=15      2:00    1:00    S
1664 Rule    Malta   1975    1980    -       Sep     Sun>=15      2:00    0       -
1665 Rule    Malta   1980    only    -       Mar     31      2:00    1:00    S
1666 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1667 Zone    Europe/Malta    0:58:04 -       LMT     1893 Nov  2 0:00s # Valletta
1668                         1:00    Italy   CE%sT   1942 Nov  2 2:00s
1669                         1:00    C-Eur   CE%sT   1945 Apr  2 2:00s
1670                         1:00    Italy   CE%sT   1973 Mar 31
1671                         1:00    Malta   CE%sT   1981
1672                         1:00    EU      CE%sT
1673 
1674 # Moldova
1675 
1676 # From Paul Eggert (2006-03-22):
1677 # A previous version of this database followed Shanks & Pottenger, who write
1678 # that Tiraspol switched to Moscow time on 1992-01-19 at 02:00.
1679 # However, this is most likely an error, as Moldova declared independence
1680 # on 1991-08-27 (the 1992-01-19 date is that of a Russian decree).
1681 # In early 1992 there was large-scale interethnic violence in the area
1682 # and it's possible that some Russophones continued to observe Moscow time.
1683 # But [two people] separately reported via
1684 # Jesper Norgaard that as of 2001-01-24 Tiraspol was like Chisinau.
1685 # The Tiraspol entry has therefore been removed for now.
1686 #
1687 # From Alexander Krivenyshev (2011-10-17):
1688 # Pridnestrovian Moldavian Republic (PMR, also known as
1689 # "Pridnestrovie") has abolished seasonal clock change (no transition
1690 # to the Winter Time).
1691 #
1692 # News (in Russian):
1693 # <a href="http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html">
1694 # http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html
1695 # </a>
1696 #
1697 # <a href="http://www.allmoldova.com/moldova-news/1249064116.html">
1698 # http://www.allmoldova.com/moldova-news/1249064116.html
1699 # </a>
1700 #
1701 # The substance of this change (reinstatement of the Tiraspol entry)
1702 # is from a patch from Petr Machata (2011-10-17)
1703 #
1704 # From Tim Parenti (2011-10-19)
1705 # In addition, being situated at +4651+2938 would give Tiraspol
1706 # a pre-1880 LMT offset of 1:58:32.
1707 #
1708 # (which agrees with the earlier entry that had been removed)
1709 #
1710 # From Alexander Krivenyshev (2011-10-26)
1711 # NO need to divide Moldova into two timezones at this point.
1712 # As of today, Transnistria (Pridnestrovie)- Tiraspol reversed its own
1713 # decision to abolish DST this winter.
1714 # Following Moldova and neighboring Ukraine- Transnistria (Pridnestrovie)-
1715 # Tiraspol will go back to winter time on October 30, 2011.
1716 # News from Moldova (in russian):
1717 # <a href="http://ru.publika.md/link_317061.html">
1718 # http://ru.publika.md/link_317061.html
1719 # </a>
1720 
1721 
1722 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1723 Zone    Europe/Chisinau 1:55:20 -       LMT     1880
1724                         1:55    -       CMT     1918 Feb 15 # Chisinau MT
1725                         1:44:24 -       BMT     1931 Jul 24 # Bucharest MT
1726                         2:00    Romania EE%sT   1940 Aug 15
1727                         2:00    1:00    EEST    1941 Jul 17
1728                         1:00    C-Eur   CE%sT   1944 Aug 24
1729                         3:00    Russia  MSK/MSD 1990
1730                         3:00    -       MSK     1990 May 6
1731                         2:00    -       EET     1991
1732                         2:00    Russia  EE%sT   1992
1733                         2:00    E-Eur   EE%sT   1997
1734 # See Romania commentary for the guessed 1997 transition to EU rules.
1735                         2:00    EU      EE%sT
1736 
1737 # Monaco
1738 # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
1739 # more precise 0:09:21.
1740 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1741 Zone    Europe/Monaco   0:29:32 -       LMT     1891 Mar 15
1742                         0:09:21 -       PMT     1911 Mar 11    # Paris Mean Time
1743                         0:00    France  WE%sT   1945 Sep 16 3:00
1744                         1:00    France  CE%sT   1977
1745                         1:00    EU      CE%sT
1746 
1747 # Montenegro
1748 # see Serbia
1749 
1750 # Netherlands
1751 
1752 # Howse writes that the Netherlands' railways used GMT between 1892 and 1940,
1753 # but for other purposes the Netherlands used Amsterdam mean time.
1754 
1755 # However, Robert H. van Gent writes (2001-04-01):
1756 # Howse's statement is only correct up to 1909. From 1909-05-01 (00:00:00
1757 # Amsterdam mean time) onwards, the whole of the Netherlands (including
1758 # the Dutch railways) was required by law to observe Amsterdam mean time
1759 # (19 minutes 32.13 seconds ahead of GMT). This had already been the
1760 # common practice (except for the railways) for many decades but it was
1761 # not until 1909 when the Dutch government finally defined this by law.
1762 # On 1937-07-01 this was changed to 20 minutes (exactly) ahead of GMT and
1763 # was generally known as Dutch Time ("Nederlandse Tijd").
1764 #
1765 # (2001-04-08):
1766 # 1892-05-01 was the date when the Dutch railways were by law required to
1767 # observe GMT while the remainder of the Netherlands adhered to the common
1768 # practice of following Amsterdam mean time.
1769 #
1770 # (2001-04-09):
1771 # In 1835 the authorities of the province of North Holland requested the
1772 # municipal authorities of the towns and cities in the province to observe
1773 # Amsterdam mean time but I do not know in how many cases this request was
1774 # actually followed.
1775 #
1776 # From 1852 onwards the Dutch telegraph offices were by law required to
1777 # observe Amsterdam mean time. As the time signals from the observatory of
1778 # Leiden were also distributed by the telegraph system, I assume that most
1779 # places linked up with the telegraph (and railway) system automatically
1780 # adopted Amsterdam mean time.
1781 #
1782 # Although the early Dutch railway companies initially observed a variety
1783 # of times, most of them had adopted Amsterdam mean time by 1858 but it
1784 # was not until 1866 when they were all required by law to observe
1785 # Amsterdam mean time.
1786 
1787 # The data before 1945 are taken from
1788 # <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>.
1789 
1790 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1791 Rule    Neth    1916    only    -       May      1      0:00    1:00    NST     # Netherlands Summer Time
1792 Rule    Neth    1916    only    -       Oct      1      0:00    0       AMT     # Amsterdam Mean Time
1793 Rule    Neth    1917    only    -       Apr     16      2:00s   1:00    NST
1794 Rule    Neth    1917    only    -       Sep     17      2:00s   0       AMT
1795 Rule    Neth    1918    1921    -       Apr     Mon>=1       2:00s   1:00    NST
1796 Rule    Neth    1918    1921    -       Sep     lastMon 2:00s   0       AMT
1797 Rule    Neth    1922    only    -       Mar     lastSun 2:00s   1:00    NST
1798 Rule    Neth    1922    1936    -       Oct     Sun>=2       2:00s   0       AMT
1799 Rule    Neth    1923    only    -       Jun     Fri>=1       2:00s   1:00    NST
1800 Rule    Neth    1924    only    -       Mar     lastSun 2:00s   1:00    NST
1801 Rule    Neth    1925    only    -       Jun     Fri>=1       2:00s   1:00    NST
1802 # From 1926 through 1939 DST began 05-15, except that it was delayed by a week
1803 # in years when 05-15 fell in the Pentecost weekend.
1804 Rule    Neth    1926    1931    -       May     15      2:00s   1:00    NST
1805 Rule    Neth    1932    only    -       May     22      2:00s   1:00    NST
1806 Rule    Neth    1933    1936    -       May     15      2:00s   1:00    NST
1807 Rule    Neth    1937    only    -       May     22      2:00s   1:00    NST
1808 Rule    Neth    1937    only    -       Jul      1      0:00    1:00    S
1809 Rule    Neth    1937    1939    -       Oct     Sun>=2       2:00s   0       -
1810 Rule    Neth    1938    1939    -       May     15      2:00s   1:00    S
1811 Rule    Neth    1945    only    -       Apr      2      2:00s   1:00    S
1812 Rule    Neth    1945    only    -       Sep     16      2:00s   0       -
1813 #
1814 # Amsterdam Mean Time was +00:19:32.13 exactly, but the .13 is omitted
1815 # below because the current format requires GMTOFF to be an integer.
1816 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1817 Zone Europe/Amsterdam   0:19:32 -       LMT     1835
1818                         0:19:32 Neth    %s      1937 Jul  1
1819                         0:20    Neth    NE%sT   1940 May 16 0:00 # Dutch Time
1820                         1:00    C-Eur   CE%sT   1945 Apr  2 2:00
1821                         1:00    Neth    CE%sT   1977
1822                         1:00    EU      CE%sT
1823 
1824 # Norway
1825 # http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks &
1826 # Pottenger.
1827 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1828 Rule    Norway  1916    only    -       May     22      1:00    1:00    S
1829 Rule    Norway  1916    only    -       Sep     30      0:00    0       -
1830 Rule    Norway  1945    only    -       Apr      2      2:00s   1:00    S
1831 Rule    Norway  1945    only    -       Oct      1      2:00s   0       -
1832 Rule    Norway  1959    1964    -       Mar     Sun>=15      2:00s   1:00    S
1833 Rule    Norway  1959    1965    -       Sep     Sun>=15      2:00s   0       -
1834 Rule    Norway  1965    only    -       Apr     25      2:00s   1:00    S
1835 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1836 Zone    Europe/Oslo     0:43:00 -       LMT     1895 Jan  1
1837                         1:00    Norway  CE%sT   1940 Aug 10 23:00
1838                         1:00    C-Eur   CE%sT   1945 Apr  2  2:00
1839                         1:00    Norway  CE%sT   1980
1840                         1:00    EU      CE%sT
1841 
1842 # Svalbard & Jan Mayen
1843 
1844 # From Steffen Thorsen (2001-05-01):
1845 # Although I could not find it explicitly, it seems that Jan Mayen and
1846 # Svalbard have been using the same time as Norway at least since the
1847 # time they were declared as parts of Norway.  Svalbard was declared
1848 # as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan
1849 # Mayen by law of 1930-02-27 no 2, section 2. (From
1850 # http://www.lovdata.no/all/nl-19250717-011.html and
1851 # http://www.lovdata.no/all/nl-19300227-002.html).  The law/regulation
1852 # for normal/standard time in Norway is from 1894-06-29 no 1 (came
1853 # into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a
1854 # part of this law since 1925/1930. (From
1855 # http://www.lovdata.no/all/nl-18940629-001.html ) I have not been
1856 # able to find if Jan Mayen used a different time zone (e.g. -0100)
1857 # before 1930. Jan Mayen has only been "inhabitated" since 1921 by
1858 # Norwegian meteorologists and maybe used the same time as Norway ever
1859 # since 1921.  Svalbard (Arctic/Longyearbyen) has been inhabited since
1860 # before 1895, and therefore probably changed the local time somewhere
1861 # between 1895 and 1925 (inclusive).
1862 
1863 # From Paul Eggert (2001-05-01):
1864 #
1865 # Actually, Jan Mayen was never occupied by Germany during World War II,
1866 # so it must have diverged from Oslo time during the war, as Oslo was
1867 # keeping Berlin time.
1868 #
1869 # <http://home.no.net/janmayen/history.htm> says that the meteorologists
1870 # burned down their station in 1940 and left the island, but returned in
1871 # 1941 with a small Norwegian garrison and continued operations despite
1872 # frequent air ttacks from Germans.  In 1943 the Americans established a
1873 # radiolocating station on the island, called "Atlantic City".  Possibly
1874 # the UTC offset changed during the war, but I think it unlikely that
1875 # Jan Mayen used German daylight-saving rules.
1876 #
1877 # Svalbard is more complicated, as it was raided in August 1941 by an
1878 # Allied party that evacuated the civilian population to England (says
1879 # <http://www.bartleby.com/65/sv/Svalbard.html>).  The Svalbard FAQ
1880 # <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were
1881 # expelled on 1942-05-14.  However, small parties of Germans did return,
1882 # and according to Wilhelm Dege's book "War North of 80" (1954)
1883 # <http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html>
1884 # the German armed forces at the Svalbard weather station code-named
1885 # Haudegen did not surrender to the Allies until September 1945.
1886 #
1887 # All these events predate our cutoff date of 1970.  Unless we can
1888 # come up with more definitive info about the timekeeping during the
1889 # war years it's probably best just do...the following for now:
1890 Link    Europe/Oslo     Arctic/Longyearbyen
1891 
1892 # Poland
1893 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1894 Rule    Poland  1918    1919    -       Sep     16      2:00s   0       -
1895 Rule    Poland  1919    only    -       Apr     15      2:00s   1:00    S
1896 Rule    Poland  1944    only    -       Apr      3      2:00s   1:00    S
1897 # Whitman gives 1944 Nov 30; go with Shanks & Pottenger.
1898 Rule    Poland  1944    only    -       Oct      4      2:00    0       -
1899 # For 1944-1948 Whitman gives the previous day; go with Shanks & Pottenger.
1900 Rule    Poland  1945    only    -       Apr     29      0:00    1:00    S
1901 Rule    Poland  1945    only    -       Nov      1      0:00    0       -
1902 # For 1946 on the source is Kazimierz Borkowski,
1903 # Torun Center for Astronomy, Dept. of Radio Astronomy, Nicolaus Copernicus U.,
1904 # <http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1>
1905 # Thanks to Przemyslaw Augustyniak (2005-05-28) for this reference.
1906 # He also gives these further references:
1907 # Mon Pol nr 13, poz 162 (1995) <http://www.abc.com.pl/serwis/mp/1995/0162.htm>
1908 # Druk nr 2180 (2003) <http://www.senat.gov.pl/k5/dok/sejm/053/2180.pdf>
1909 Rule    Poland  1946    only    -       Apr     14      0:00s   1:00    S
1910 Rule    Poland  1946    only    -       Oct      7      2:00s   0       -
1911 Rule    Poland  1947    only    -       May      4      2:00s   1:00    S
1912 Rule    Poland  1947    1949    -       Oct     Sun>=1       2:00s   0       -
1913 Rule    Poland  1948    only    -       Apr     18      2:00s   1:00    S
1914 Rule    Poland  1949    only    -       Apr     10      2:00s   1:00    S
1915 Rule    Poland  1957    only    -       Jun      2      1:00s   1:00    S
1916 Rule    Poland  1957    1958    -       Sep     lastSun 1:00s   0       -
1917 Rule    Poland  1958    only    -       Mar     30      1:00s   1:00    S
1918 Rule    Poland  1959    only    -       May     31      1:00s   1:00    S
1919 Rule    Poland  1959    1961    -       Oct     Sun>=1       1:00s   0       -
1920 Rule    Poland  1960    only    -       Apr      3      1:00s   1:00    S
1921 Rule    Poland  1961    1964    -       May     lastSun 1:00s   1:00    S
1922 Rule    Poland  1962    1964    -       Sep     lastSun 1:00s   0       -
1923 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1924 Zone    Europe/Warsaw   1:24:00 -       LMT     1880
1925                         1:24:00 -       WMT     1915 Aug  5   # Warsaw Mean Time
1926                         1:00    C-Eur   CE%sT   1918 Sep 16 3:00
1927                         2:00    Poland  EE%sT   1922 Jun
1928                         1:00    Poland  CE%sT   1940 Jun 23 2:00
1929                         1:00    C-Eur   CE%sT   1944 Oct
1930                         1:00    Poland  CE%sT   1977
1931                         1:00    W-Eur   CE%sT   1988
1932                         1:00    EU      CE%sT
1933 
1934 # Portugal
1935 #
1936 # From Rui Pedro Salgueiro (1992-11-12):
1937 # Portugal has recently (September, 27) changed timezone
1938 # (from WET to MET or CET) to harmonize with EEC.
1939 #
1940 # Martin Bruckmann (1996-02-29) reports via Peter Ilieve
1941 # that Portugal is reverting to 0:00 by not moving its clocks this spring.
1942 # The new Prime Minister was fed up with getting up in the dark in the winter.
1943 #
1944 # From Paul Eggert (1996-11-12):
1945 # IATA SSIM (1991-09) reports several 1991-09 and 1992-09 transitions
1946 # at 02:00u, not 01:00u.  Assume that these are typos.
1947 # IATA SSIM (1991/1992) reports that the Azores were at -1:00.
1948 # IATA SSIM (1993-02) says +0:00; later issues (through 1996-09) say -1:00.
1949 # Guess that the Azores changed to EU rules in 1992 (since that's when Portugal
1950 # harmonized with the EU), and that they stayed +0:00 that winter.
1951 #
1952 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1953 # DSH writes that despite Decree 1,469 (1915), the change to the clocks was not
1954 # done every year, depending on what Spain did, because of railroad schedules.
1955 # Go with Shanks & Pottenger.
1956 Rule    Port    1916    only    -       Jun     17      23:00   1:00    S
1957 # Whitman gives 1916 Oct 31; go with Shanks & Pottenger.
1958 Rule    Port    1916    only    -       Nov      1       1:00   0       -
1959 Rule    Port    1917    only    -       Feb     28      23:00s  1:00    S
1960 Rule    Port    1917    1921    -       Oct     14      23:00s  0       -
1961 Rule    Port    1918    only    -       Mar      1      23:00s  1:00    S
1962 Rule    Port    1919    only    -       Feb     28      23:00s  1:00    S
1963 Rule    Port    1920    only    -       Feb     29      23:00s  1:00    S
1964 Rule    Port    1921    only    -       Feb     28      23:00s  1:00    S
1965 Rule    Port    1924    only    -       Apr     16      23:00s  1:00    S
1966 Rule    Port    1924    only    -       Oct     14      23:00s  0       -
1967 Rule    Port    1926    only    -       Apr     17      23:00s  1:00    S
1968 Rule    Port    1926    1929    -       Oct     Sat>=1       23:00s  0       -
1969 Rule    Port    1927    only    -       Apr      9      23:00s  1:00    S
1970 Rule    Port    1928    only    -       Apr     14      23:00s  1:00    S
1971 Rule    Port    1929    only    -       Apr     20      23:00s  1:00    S
1972 Rule    Port    1931    only    -       Apr     18      23:00s  1:00    S
1973 # Whitman gives 1931 Oct 8; go with Shanks & Pottenger.
1974 Rule    Port    1931    1932    -       Oct     Sat>=1       23:00s  0       -
1975 Rule    Port    1932    only    -       Apr      2      23:00s  1:00    S
1976 Rule    Port    1934    only    -       Apr      7      23:00s  1:00    S
1977 # Whitman gives 1934 Oct 5; go with Shanks & Pottenger.
1978 Rule    Port    1934    1938    -       Oct     Sat>=1       23:00s  0       -
1979 # Shanks & Pottenger give 1935 Apr 30; go with Whitman.
1980 Rule    Port    1935    only    -       Mar     30      23:00s  1:00    S
1981 Rule    Port    1936    only    -       Apr     18      23:00s  1:00    S
1982 # Whitman gives 1937 Apr 2; go with Shanks & Pottenger.
1983 Rule    Port    1937    only    -       Apr      3      23:00s  1:00    S
1984 Rule    Port    1938    only    -       Mar     26      23:00s  1:00    S
1985 Rule    Port    1939    only    -       Apr     15      23:00s  1:00    S
1986 # Whitman gives 1939 Oct 7; go with Shanks & Pottenger.
1987 Rule    Port    1939    only    -       Nov     18      23:00s  0       -
1988 Rule    Port    1940    only    -       Feb     24      23:00s  1:00    S
1989 # Shanks & Pottenger give 1940 Oct 7; go with Whitman.
1990 Rule    Port    1940    1941    -       Oct      5      23:00s  0       -
1991 Rule    Port    1941    only    -       Apr      5      23:00s  1:00    S
1992 Rule    Port    1942    1945    -       Mar     Sat>=8       23:00s  1:00    S
1993 Rule    Port    1942    only    -       Apr     25      22:00s  2:00    M # Midsummer
1994 Rule    Port    1942    only    -       Aug     15      22:00s  1:00    S
1995 Rule    Port    1942    1945    -       Oct     Sat>=24      23:00s  0       -
1996 Rule    Port    1943    only    -       Apr     17      22:00s  2:00    M
1997 Rule    Port    1943    1945    -       Aug     Sat>=25      22:00s  1:00    S
1998 Rule    Port    1944    1945    -       Apr     Sat>=21      22:00s  2:00    M
1999 Rule    Port    1946    only    -       Apr     Sat>=1       23:00s  1:00    S
2000 Rule    Port    1946    only    -       Oct     Sat>=1       23:00s  0       -
2001 Rule    Port    1947    1949    -       Apr     Sun>=1        2:00s  1:00    S
2002 Rule    Port    1947    1949    -       Oct     Sun>=1        2:00s  0       -
2003 # Shanks & Pottenger say DST was observed in 1950; go with Whitman.
2004 # Whitman gives Oct lastSun for 1952 on; go with Shanks & Pottenger.
2005 Rule    Port    1951    1965    -       Apr     Sun>=1        2:00s  1:00    S
2006 Rule    Port    1951    1965    -       Oct     Sun>=1        2:00s  0       -
2007 Rule    Port    1977    only    -       Mar     27       0:00s  1:00    S
2008 Rule    Port    1977    only    -       Sep     25       0:00s  0       -
2009 Rule    Port    1978    1979    -       Apr     Sun>=1        0:00s  1:00    S
2010 Rule    Port    1978    only    -       Oct      1       0:00s  0       -
2011 Rule    Port    1979    1982    -       Sep     lastSun  1:00s  0       -
2012 Rule    Port    1980    only    -       Mar     lastSun  0:00s  1:00    S
2013 Rule    Port    1981    1982    -       Mar     lastSun  1:00s  1:00    S
2014 Rule    Port    1983    only    -       Mar     lastSun  2:00s  1:00    S
2015 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2016 # Shanks & Pottenger say the transition from LMT to WET occurred 1911-05-24;
2017 # Willett says 1912-01-01.  Go with Willett.
2018 Zone    Europe/Lisbon   -0:36:32 -      LMT     1884
2019                         -0:36:32 -      LMT     1912 Jan  1  # Lisbon Mean Time
2020                          0:00   Port    WE%sT   1966 Apr  3 2:00
2021                          1:00   -       CET     1976 Sep 26 1:00
2022                          0:00   Port    WE%sT   1983 Sep 25 1:00s
2023                          0:00   W-Eur   WE%sT   1992 Sep 27 1:00s
2024                          1:00   EU      CE%sT   1996 Mar 31 1:00u
2025                          0:00   EU      WE%sT
2026 Zone Atlantic/Azores    -1:42:40 -      LMT     1884            # Ponta Delgada
2027                         -1:54:32 -      HMT     1911 May 24  # Horta Mean Time
2028                         -2:00   Port    AZO%sT  1966 Apr  3 2:00 # Azores Time
2029                         -1:00   Port    AZO%sT  1983 Sep 25 1:00s
2030                         -1:00   W-Eur   AZO%sT  1992 Sep 27 1:00s
2031                          0:00   EU      WE%sT   1993 Mar 28 1:00u
2032                         -1:00   EU      AZO%sT
2033 Zone Atlantic/Madeira   -1:07:36 -      LMT     1884            # Funchal
2034                         -1:07:36 -      FMT     1911 May 24  # Funchal Mean Time
2035                         -1:00   Port    MAD%sT  1966 Apr  3 2:00 # Madeira Time
2036                          0:00   Port    WE%sT   1983 Sep 25 1:00s
2037                          0:00   EU      WE%sT
2038 
2039 # Romania
2040 #
2041 # From Paul Eggert (1999-10-07):
2042 # <a href="http://www.nineoclock.ro/POL/1778pol.html">
2043 # Nine O'clock</a> (1998-10-23) reports that the switch occurred at
2044 # 04:00 local time in fall 1998.  For lack of better info,
2045 # assume that Romania and Moldova switched to EU rules in 1997,
2046 # the same year as Bulgaria.
2047 #
2048 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
2049 Rule    Romania 1932    only    -       May     21       0:00s  1:00    S
2050 Rule    Romania 1932    1939    -       Oct     Sun>=1        0:00s  0       -
2051 Rule    Romania 1933    1939    -       Apr     Sun>=2        0:00s  1:00    S
2052 Rule    Romania 1979    only    -       May     27       0:00   1:00    S
2053 Rule    Romania 1979    only    -       Sep     lastSun  0:00   0       -
2054 Rule    Romania 1980    only    -       Apr      5      23:00   1:00    S
2055 Rule    Romania 1980    only    -       Sep     lastSun  1:00   0       -
2056 Rule    Romania 1991    1993    -       Mar     lastSun  0:00s  1:00    S
2057 Rule    Romania 1991    1993    -       Sep     lastSun  0:00s  0       -
2058 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2059 Zone Europe/Bucharest   1:44:24 -       LMT     1891 Oct
2060                         1:44:24 -       BMT     1931 Jul 24     # Bucharest MT
2061                         2:00    Romania EE%sT   1981 Mar 29 2:00s
2062                         2:00    C-Eur   EE%sT   1991
2063                         2:00    Romania EE%sT   1994
2064                         2:00    E-Eur   EE%sT   1997
2065                         2:00    EU      EE%sT
2066 
2067 # Russia
2068 
2069 # From Paul Eggert (2006-03-22):
2070 # Except for Moscow after 1919-07-01, I invented the time zone abbreviations.
2071 # Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991,
2072 # are from Andrey A. Chernov.  The rest is from Shanks & Pottenger,
2073 # except we follow Chernov's report that 1992 DST transitions were Sat
2074 # 23:00, not Sun 02:00s.
2075 #
2076 # From Stanislaw A. Kuzikowski (1994-06-29):
2077 # But now it is some months since Novosibirsk is 3 hours ahead of Moscow!
2078 # I do not know why they have decided to make this change;
2079 # as far as I remember it was done exactly during winter->summer switching
2080 # so we (Novosibirsk) simply did not switch.
2081 #
2082 # From Andrey A. Chernov (1996-10-04):
2083 # `MSK' and `MSD' were born and used initially on Moscow computers with
2084 # UNIX-like OSes by several developer groups (e.g. Demos group, Kiae group)....
2085 # The next step was the UUCP network, the Relcom predecessor
2086 # (used mainly for mail), and MSK/MSD was actively used there.
2087 #
2088 # From Chris Carrier (1996-10-30):
2089 # According to a friend of mine who rode the Trans-Siberian Railroad from
2090 # Moscow to Irkutsk in 1995, public air and rail transport in Russia ...
2091 # still follows Moscow time, no matter where in Russia it is located.
2092 #
2093 # For Grozny, Chechnya, we have the following story from
2094 # John Daniszewski, "Scavengers in the Rubble", Los Angeles Times (2001-02-07):
2095 # News--often false--is spread by word of mouth.  A rumor that it was
2096 # time to move the clocks back put this whole city out of sync with
2097 # the rest of Russia for two weeks--even soldiers stationed here began
2098 # enforcing curfew at the wrong time.
2099 #
2100 # From Gwillim Law (2001-06-05):
2101 # There's considerable evidence that Sakhalin Island used to be in
2102 # UTC+11, and has changed to UTC+10, in this decade.  I start with the
2103 # SSIM, which listed Yuzhno-Sakhalinsk in zone RU10 along with Magadan
2104 # until February 1997, and then in RU9 with Khabarovsk and Vladivostok
2105 # since September 1997....  Although the Kuril Islands are
2106 # administratively part of Sakhalin oblast', they appear to have
2107 # remained on UTC+11 along with Magadan.
2108 #
2109 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2110 #
2111 # Kaliningradskaya oblast'.
2112 Zone Europe/Kaliningrad  1:22:00 -      LMT     1893 Apr
2113                          1:00   C-Eur   CE%sT   1945
2114                          2:00   Poland  CE%sT   1946
2115                          3:00   Russia  MSK/MSD 1991 Mar 31 2:00s
2116                          2:00   Russia  EE%sT   2011 Mar 27 2:00s
2117                          3:00   -       FET # Further-eastern European Time
2118 #
2119 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2120 # Respublika Adygeya, Arkhangel'skaya oblast',
2121 # Belgorodskaya oblast', Bryanskaya oblast', Vladimirskaya oblast',
2122 # Vologodskaya oblast', Voronezhskaya oblast',
2123 # Respublika Dagestan, Ivanovskaya oblast', Respublika Ingushetiya,
2124 # Kabarbino-Balkarskaya Respublika, Respublika Kalmykiya,
2125 # Kalyzhskaya oblast', Respublika Karachaevo-Cherkessiya,
2126 # Respublika Kareliya, Respublika Komi,
2127 # Kostromskaya oblast', Krasnodarskij kraj, Kurskaya oblast',
2128 # Leningradskaya oblast', Lipetskaya oblast', Respublika Marij El,
2129 # Respublika Mordoviya, Moskva, Moskovskaya oblast',
2130 # Murmanskaya oblast', Nenetskij avtonomnyj okrug,
2131 # Nizhegorodskaya oblast', Novgorodskaya oblast', Orlovskaya oblast',
2132 # Penzenskaya oblast', Pskovskaya oblast', Rostovskaya oblast',
2133 # Ryazanskaya oblast', Sankt-Peterburg,
2134 # Respublika Severnaya Osetiya, Smolenskaya oblast',
2135 # Stavropol'skij kraj, Tambovskaya oblast', Respublika Tatarstan,
2136 # Tverskaya oblast', Tyl'skaya oblast', Ul'yanovskaya oblast',
2137 # Chechenskaya Respublika, Chuvashskaya oblast',
2138 # Yaroslavskaya oblast'
2139 Zone Europe/Moscow       2:30:20 -      LMT     1880
2140                          2:30   -       MMT     1916 Jul  3 # Moscow Mean Time
2141                          2:30:48 Russia %s      1919 Jul  1 2:00
2142                          3:00   Russia  MSK/MSD 1922 Oct
2143                          2:00   -       EET     1930 Jun 21
2144                          3:00   Russia  MSK/MSD 1991 Mar 31 2:00s
2145                          2:00   Russia  EE%sT   1992 Jan 19 2:00s
2146                          3:00   Russia  MSK/MSD 2011 Mar 27 2:00s
2147                          4:00   -       MSK
2148 #
2149 # Astrakhanskaya oblast', Kirovskaya oblast', Saratovskaya oblast',
2150 # Volgogradskaya oblast'.  Shanks & Pottenger say Kirov is still at +0400
2151 # but Wikipedia (2006-05-09) says +0300.  Perhaps it switched after the
2152 # others?  But we have no data.
2153 Zone Europe/Volgograd    2:57:40 -      LMT     1920 Jan  3
2154                          3:00   -       TSAT    1925 Apr  6 # Tsaritsyn Time
2155                          3:00   -       STAT    1930 Jun 21 # Stalingrad Time
2156                          4:00   -       STAT    1961 Nov 11
2157                          4:00   Russia  VOL%sT  1989 Mar 26 2:00s # Volgograd T
2158                          3:00   Russia  VOL%sT  1991 Mar 31 2:00s
2159                          4:00   -       VOLT    1992 Mar 29 2:00s
2160                          3:00   Russia  VOL%sT  2011 Mar 27 2:00s
2161                          4:00   -       VOLT
2162 #
2163 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2164 # Samarskaya oblast', Udmyrtskaya respublika
2165 Zone Europe/Samara       3:20:36 -      LMT     1919 Jul  1 2:00
2166                          3:00   -       SAMT    1930 Jun 21
2167                          4:00   -       SAMT    1935 Jan 27
2168                          4:00   Russia  KUY%sT  1989 Mar 26 2:00s # Kuybyshev
2169                          3:00   Russia  KUY%sT  1991 Mar 31 2:00s
2170                          2:00   Russia  KUY%sT  1991 Sep 29 2:00s
2171                          3:00   -       KUYT    1991 Oct 20 3:00
2172                          4:00   Russia  SAM%sT  2010 Mar 28 2:00s # Samara Time
2173                          3:00   Russia  SAM%sT  2011 Mar 27 2:00s
2174                          4:00   -       SAMT
2175 
2176 #
2177 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2178 # Respublika Bashkortostan, Komi-Permyatskij avtonomnyj okrug,
2179 # Kurganskaya oblast', Orenburgskaya oblast', Permskaya oblast',
2180 # Sverdlovskaya oblast', Tyumenskaya oblast',
2181 # Khanty-Manskijskij avtonomnyj okrug, Chelyabinskaya oblast',
2182 # Yamalo-Nenetskij avtonomnyj okrug.
2183 Zone Asia/Yekaterinburg  4:02:24 -      LMT     1919 Jul 15 4:00
2184                          4:00   -       SVET    1930 Jun 21 # Sverdlovsk Time
2185                          5:00   Russia  SVE%sT  1991 Mar 31 2:00s
2186                          4:00   Russia  SVE%sT  1992 Jan 19 2:00s
2187                          5:00   Russia  YEK%sT  2011 Mar 27 2:00s
2188                          6:00   -       YEKT    # Yekaterinburg Time
2189 #
2190 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2191 # Respublika Altaj, Altajskij kraj, Omskaya oblast'.
2192 Zone Asia/Omsk           4:53:36 -      LMT     1919 Nov 14
2193                          5:00   -       OMST    1930 Jun 21 # Omsk TIme
2194                          6:00   Russia  OMS%sT  1991 Mar 31 2:00s
2195                          5:00   Russia  OMS%sT  1992 Jan 19 2:00s
2196                          6:00   Russia  OMS%sT  2011 Mar 27 2:00s
2197                          7:00   -       OMST
2198 #
2199 # From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's
2200 # not clear when it switched from +7 to +6.
2201 # Novosibirskaya oblast', Tomskaya oblast'.
2202 Zone Asia/Novosibirsk    5:31:40 -      LMT     1919 Dec 14 6:00
2203                          6:00   -       NOVT    1930 Jun 21 # Novosibirsk Time
2204                          7:00   Russia  NOV%sT  1991 Mar 31 2:00s
2205                          6:00   Russia  NOV%sT  1992 Jan 19 2:00s
2206                          7:00   Russia  NOV%sT  1993 May 23 # say Shanks & P.
2207                          6:00   Russia  NOV%sT  2011 Mar 27 2:00s
2208                          7:00   -       NOVT
2209 
2210 # From Alexander Krivenyshev (2009-10-13):
2211 # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on
2212 # March 28, 2010:
2213 # from current Russia Zone 6 - Krasnoyarsk Time Zone (KRA) UTC +0700
2214 # to Russia Zone 5 - Novosibirsk Time Zone (NOV) UTC +0600
2215 #
2216 # This is according to Government of Russia decree # 740, on September
2217 # 14, 2009 "Application in the territory of the Kemerovo region the Fifth
2218 # time zone." ("Russia Zone 5" or old "USSR Zone 5" is GMT +0600)
2219 #
2220 # Russian Government web site (Russian language)
2221 # <a href="http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archiv">
2222 # http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archive/2009/09/14/991633.htm
2223 # </a>
2224 # or Russian-English translation by WorldTimeZone.com with reference
2225 # map to local region and new Russia Time Zone map after March 28, 2010
2226 # <a href="http://www.worldtimezone.com/dst_news/dst_news_russia03.html">
2227 # http://www.worldtimezone.com/dst_news/dst_news_russia03.html
2228 # </a>
2229 #
2230 # Thus, when Russia will switch to DST on the night of March 28, 2010
2231 # Kemerovo region (Kemerovo oblast') will not change the clock.
2232 #
2233 # As a result, Kemerovo oblast' will be in the same time zone as
2234 # Novosibirsk, Omsk, Tomsk, Barnaul and Altai Republic.
2235 
2236 Zone Asia/Novokuznetsk   5:48:48 -      NMT     1920 Jan  6
2237                          6:00   -       KRAT    1930 Jun 21 # Krasnoyarsk Time
2238                          7:00   Russia  KRA%sT  1991 Mar 31 2:00s
2239                          6:00   Russia  KRA%sT  1992 Jan 19 2:00s
2240                          7:00   Russia  KRA%sT  2010 Mar 28 2:00s
2241                          6:00   Russia  NOV%sT  2011 Mar 27 2:00s
2242                          7:00   -       NOVT # Novosibirsk/Novokuznetsk Time
2243 
2244 #
2245 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2246 # Krasnoyarskij kraj,
2247 # Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug,
2248 # Respublika Tuva, Respublika Khakasiya, Evenkijskij avtonomnyj okrug.
2249 Zone Asia/Krasnoyarsk    6:11:20 -      LMT     1920 Jan  6
2250                          6:00   -       KRAT    1930 Jun 21 # Krasnoyarsk Time
2251                          7:00   Russia  KRA%sT  1991 Mar 31 2:00s
2252                          6:00   Russia  KRA%sT  1992 Jan 19 2:00s
2253                          7:00   Russia  KRA%sT  2011 Mar 27 2:00s
2254                          8:00   -       KRAT
2255 #
2256 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2257 # Respublika Buryatiya, Irkutskaya oblast',
2258 # Ust'-Ordynskij Buryatskij avtonomnyj okrug.
2259 Zone Asia/Irkutsk        6:57:20 -      LMT     1880
2260                          6:57:20 -      IMT     1920 Jan 25 # Irkutsk Mean Time
2261                          7:00   -       IRKT    1930 Jun 21 # Irkutsk Time
2262                          8:00   Russia  IRK%sT  1991 Mar 31 2:00s
2263                          7:00   Russia  IRK%sT  1992 Jan 19 2:00s
2264                          8:00   Russia  IRK%sT  2011 Mar 27 2:00s
2265                          9:00   -       IRKT
2266 #
2267 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
2268 # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
2269 # [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'.
2270 
2271 # From Oscar van Vlijmen (2009-11-29):
2272 # ...some regions of [Russia] were merged with others since 2005...
2273 # Some names were changed, no big deal, except for one instance: a new name.
2274 # YAK/YAKST: UTC+9 Zabajkal'skij kraj.
2275 
2276 # From Oscar van Vlijmen (2009-11-29):
2277 # The Sakha districts are: Aldanskij, Amginskij, Anabarskij,
2278 # Verkhnevilyujskij, Vilyujskij, Gornyj,
2279 # Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij,
2280 # Namskij, Nyurbinskij, Olenyokskij, Olyokminskij,
2281 # Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij,
2282 # Churapchinskij, Eveno-Bytantajskij Natsional'nij.
2283 
2284 Zone Asia/Yakutsk        8:38:40 -      LMT     1919 Dec 15
2285                          8:00   -       YAKT    1930 Jun 21 # Yakutsk Time
2286                          9:00   Russia  YAK%sT  1991 Mar 31 2:00s
2287                          8:00   Russia  YAK%sT  1992 Jan 19 2:00s
2288                          9:00   Russia  YAK%sT  2011 Mar 27 2:00s
2289                          10:00  -       YAKT
2290 #
2291 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
2292 # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
2293 # [parts of] Respublika Sakha (Yakutiya).
2294 
2295 # From Oscar van Vlijmen (2009-11-29):
2296 # The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij,
2297 # Ust'-Yanskij.
2298 Zone Asia/Vladivostok    8:47:44 -      LMT     1922 Nov 15
2299                          9:00   -       VLAT    1930 Jun 21 # Vladivostok Time
2300                         10:00   Russia  VLA%sT  1991 Mar 31 2:00s
2301                          9:00   Russia  VLA%sST 1992 Jan 19 2:00s
2302                         10:00   Russia  VLA%sT  2011 Mar 27 2:00s
2303                         11:00   -       VLAT
2304 #
2305 # Sakhalinskaya oblast'.
2306 # The Zone name should be Yuzhno-Sakhalinsk, but that's too long.
2307 Zone Asia/Sakhalin       9:30:48 -      LMT     1905 Aug 23
2308                          9:00   -       CJT     1938
2309                          9:00   -       JST     1945 Aug 25
2310                         11:00   Russia  SAK%sT  1991 Mar 31 2:00s # Sakhalin T.
2311                         10:00   Russia  SAK%sT  1992 Jan 19 2:00s
2312                         11:00   Russia  SAK%sT  1997 Mar lastSun 2:00s
2313                         10:00   Russia  SAK%sT  2011 Mar 27 2:00s
2314                         11:00   -       SAKT
2315 #
2316 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
2317 # Magadanskaya oblast', Respublika Sakha (Yakutiya).
2318 # Probably also: Kuril Islands.
2319 
2320 # From Oscar van Vlijmen (2009-11-29):
2321 # The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij,
2322 # Nizhnekolymskij, Ojmyakonskij, Srednekolymskij.
2323 Zone Asia/Magadan       10:03:12 -      LMT     1924 May  2
2324                         10:00   -       MAGT    1930 Jun 21 # Magadan Time
2325                         11:00   Russia  MAG%sT  1991 Mar 31 2:00s
2326                         10:00   Russia  MAG%sT  1992 Jan 19 2:00s
2327                         11:00   Russia  MAG%sT  2011 Mar 27 2:00s
2328                         12:00   -       MAGT
2329 #
2330 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
2331 # Kamchatskaya oblast', Koryakskij avtonomnyj okrug.
2332 #
2333 # The Zone name should be Asia/Petropavlovsk-Kamchatski, but that's too long.
2334 Zone Asia/Kamchatka     10:34:36 -      LMT     1922 Nov 10
2335                         11:00   -       PETT    1930 Jun 21 # P-K Time
2336                         12:00   Russia  PET%sT  1991 Mar 31 2:00s
2337                         11:00   Russia  PET%sT  1992 Jan 19 2:00s
2338                         12:00   Russia  PET%sT  2010 Mar 28 2:00s
2339                         11:00   Russia  PET%sT  2011 Mar 27 2:00s
2340                         12:00   -       PETT
2341 #
2342 # Chukotskij avtonomnyj okrug
2343 Zone Asia/Anadyr        11:49:56 -      LMT     1924 May  2
2344                         12:00   -       ANAT    1930 Jun 21 # Anadyr Time
2345                         13:00   Russia  ANA%sT  1982 Apr  1 0:00s
2346                         12:00   Russia  ANA%sT  1991 Mar 31 2:00s
2347                         11:00   Russia  ANA%sT  1992 Jan 19 2:00s
2348                         12:00   Russia  ANA%sT  2010 Mar 28 2:00s
2349                         11:00   Russia  ANA%sT  2011 Mar 27 2:00s
2350                         12:00   -       ANAT
2351 
2352 # Serbia
2353 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2354 Zone    Europe/Belgrade 1:22:00 -       LMT     1884
2355                         1:00    -       CET     1941 Apr 18 23:00
2356                         1:00    C-Eur   CE%sT   1945
2357                         1:00    -       CET     1945 May 8 2:00s
2358                         1:00    1:00    CEST    1945 Sep 16  2:00s
2359 # Metod Kozelj reports that the legal date of
2360 # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time.
2361 # Shanks & Pottenger don't give as much detail, so go with Kozelj.
2362                         1:00    -       CET     1982 Nov 27
2363                         1:00    EU      CE%sT
2364 Link Europe/Belgrade Europe/Ljubljana   # Slovenia
2365 Link Europe/Belgrade Europe/Podgorica   # Montenegro
2366 Link Europe/Belgrade Europe/Sarajevo    # Bosnia and Herzegovina
2367 Link Europe/Belgrade Europe/Skopje      # Macedonia
2368 Link Europe/Belgrade Europe/Zagreb      # Croatia
2369 
2370 # Slovakia
2371 Link Europe/Prague Europe/Bratislava
2372 
2373 # Slovenia
2374 # see Serbia
2375 
2376 # Spain
2377 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
2378 # For 1917-1919 Whitman gives Apr Sat>=1 - Oct Sat>=1;
2379 # go with Shanks & Pottenger.
2380 Rule    Spain   1917    only    -       May      5      23:00s  1:00    S
2381 Rule    Spain   1917    1919    -       Oct      6      23:00s  0       -
2382 Rule    Spain   1918    only    -       Apr     15      23:00s  1:00    S
2383 Rule    Spain   1919    only    -       Apr      5      23:00s  1:00    S
2384 # Whitman gives 1921 Feb 28 - Oct 14; go with Shanks & Pottenger.
2385 Rule    Spain   1924    only    -       Apr     16      23:00s  1:00    S
2386 # Whitman gives 1924 Oct 14; go with Shanks & Pottenger.
2387 Rule    Spain   1924    only    -       Oct      4      23:00s  0       -
2388 Rule    Spain   1926    only    -       Apr     17      23:00s  1:00    S
2389 # Whitman says no DST in 1929; go with Shanks & Pottenger.
2390 Rule    Spain   1926    1929    -       Oct     Sat>=1       23:00s  0       -
2391 Rule    Spain   1927    only    -       Apr      9      23:00s  1:00    S
2392 Rule    Spain   1928    only    -       Apr     14      23:00s  1:00    S
2393 Rule    Spain   1929    only    -       Apr     20      23:00s  1:00    S
2394 # Whitman gives 1937 Jun 16, 1938 Apr 16, 1940 Apr 13;
2395 # go with Shanks & Pottenger.
2396 Rule    Spain   1937    only    -       May     22      23:00s  1:00    S
2397 Rule    Spain   1937    1939    -       Oct     Sat>=1       23:00s  0       -
2398 Rule    Spain   1938    only    -       Mar     22      23:00s  1:00    S
2399 Rule    Spain   1939    only    -       Apr     15      23:00s  1:00    S
2400 Rule    Spain   1940    only    -       Mar     16      23:00s  1:00    S
2401 # Whitman says no DST 1942-1945; go with Shanks & Pottenger.
2402 Rule    Spain   1942    only    -       May      2      22:00s  2:00    M # Midsummer
2403 Rule    Spain   1942    only    -       Sep      1      22:00s  1:00    S
2404 Rule    Spain   1943    1946    -       Apr     Sat>=13      22:00s  2:00    M
2405 Rule    Spain   1943    only    -       Oct      3      22:00s  1:00    S
2406 Rule    Spain   1944    only    -       Oct     10      22:00s  1:00    S
2407 Rule    Spain   1945    only    -       Sep     30       1:00   1:00    S
2408 Rule    Spain   1946    only    -       Sep     30       0:00   0       -
2409 Rule    Spain   1949    only    -       Apr     30      23:00   1:00    S
2410 Rule    Spain   1949    only    -       Sep     30       1:00   0       -
2411 Rule    Spain   1974    1975    -       Apr     Sat>=13      23:00   1:00    S
2412 Rule    Spain   1974    1975    -       Oct     Sun>=1        1:00   0       -
2413 Rule    Spain   1976    only    -       Mar     27      23:00   1:00    S
2414 Rule    Spain   1976    1977    -       Sep     lastSun  1:00   0       -
2415 Rule    Spain   1977    1978    -       Apr      2      23:00   1:00    S
2416 Rule    Spain   1978    only    -       Oct      1       1:00   0       -
2417 # The following rules are copied from Morocco from 1967 through 1978.
2418 Rule SpainAfrica 1967   only    -       Jun      3      12:00   1:00    S
2419 Rule SpainAfrica 1967   only    -       Oct      1       0:00   0       -
2420 Rule SpainAfrica 1974   only    -       Jun     24       0:00   1:00    S
2421 Rule SpainAfrica 1974   only    -       Sep      1       0:00   0       -
2422 Rule SpainAfrica 1976   1977    -       May      1       0:00   1:00    S
2423 Rule SpainAfrica 1976   only    -       Aug      1       0:00   0       -
2424 Rule SpainAfrica 1977   only    -       Sep     28       0:00   0       -
2425 Rule SpainAfrica 1978   only    -       Jun      1       0:00   1:00    S
2426 Rule SpainAfrica 1978   only    -       Aug      4       0:00   0       -
2427 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2428 Zone    Europe/Madrid   -0:14:44 -      LMT     1901 Jan  1  0:00s
2429                          0:00   Spain   WE%sT   1946 Sep 30
2430                          1:00   Spain   CE%sT   1979
2431                          1:00   EU      CE%sT
2432 Zone    Africa/Ceuta    -0:21:16 -      LMT     1901
2433                          0:00   -       WET     1918 May  6 23:00
2434                          0:00   1:00    WEST    1918 Oct  7 23:00
2435                          0:00   -       WET     1924
2436                          0:00   Spain   WE%sT   1929
2437                          0:00 SpainAfrica WE%sT 1984 Mar 16
2438                          1:00   -       CET     1986
2439                          1:00   EU      CE%sT
2440 Zone    Atlantic/Canary -1:01:36 -      LMT     1922 Mar # Las Palmas de Gran C.
2441                         -1:00   -       CANT    1946 Sep 30 1:00 # Canaries Time
2442                          0:00   -       WET     1980 Apr  6 0:00s
2443                          0:00   1:00    WEST    1980 Sep 28 0:00s
2444                          0:00   EU      WE%sT
2445 # IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u.
2446 # Ignore this for now, as the Canaries are part of the EU.
2447 
2448 # Sweden
2449 
2450 # From Ivan Nilsson (2001-04-13), superseding Shanks & Pottenger:
2451 #
2452 # The law "Svensk forfattningssamling 1878, no 14" about standard time in 1879:
2453 # From the beginning of 1879 (that is 01-01 00:00) the time for all
2454 # places in the country is "the mean solar time for the meridian at
2455 # three degrees, or twelve minutes of time, to the west of the
2456 # meridian of the Observatory of Stockholm".  The law is dated 1878-05-31.
2457 #
2458 # The observatory at that time had the meridian 18 degrees 03' 30"
2459 # eastern longitude = 01:12:14 in time.  Less 12 minutes gives the
2460 # national standard time as 01:00:14 ahead of GMT....
2461 #
2462 # About the beginning of CET in Sweden. The lawtext ("Svensk
2463 # forfattningssamling 1899, no 44") states, that "from the beginning
2464 # of 1900... ... the same as the mean solar time for the meridian at
2465 # the distance of one hour of time from the meridian of the English
2466 # observatory at Greenwich, or at 12 minutes 14 seconds to the west
2467 # from the meridian of the Observatory of Stockholm". The law is dated
2468 # 1899-06-16.  In short: At 1900-01-01 00:00:00 the new standard time
2469 # in Sweden is 01:00:00 ahead of GMT.
2470 #
2471 # 1916: The lawtext ("Svensk forfattningssamling 1916, no 124") states
2472 # that "1916-05-15 is considered to begin one hour earlier". It is
2473 # pretty obvious that at 05-14 23:00 the clocks are set to 05-15 00:00....
2474 # Further the law says, that "1916-09-30 is considered to end one hour later".
2475 #
2476 # The laws regulating [DST] are available on the site of the Swedish
2477 # Parliament beginning with 1985 - the laws regulating 1980/1984 are
2478 # not available on the site (to my knowledge they are only available
2479 # in Swedish): <http://www.riksdagen.se/english/work/sfst.asp> (type
2480 # "sommartid" without the quotes in the field "Fritext" and then click
2481 # the Sok-button).
2482 #
2483 # (2001-05-13):
2484 #
2485 # I have now found a newspaper stating that at 1916-10-01 01:00
2486 # summertime the church-clocks etc were set back one hour to show
2487 # 1916-10-01 00:00 standard time.  The article also reports that some
2488 # people thought the switch to standard time would take place already
2489 # at 1916-10-01 00:00 summer time, but they had to wait for another
2490 # hour before the event took place.
2491 #
2492 # Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left.
2493 
2494 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2495 Zone Europe/Stockholm   1:12:12 -       LMT     1879 Jan  1
2496                         1:00:14 -       SET     1900 Jan  1     # Swedish Time
2497                         1:00    -       CET     1916 May 14 23:00
2498                         1:00    1:00    CEST    1916 Oct  1 01:00
2499                         1:00    -       CET     1980
2500                         1:00    EU      CE%sT
2501 
2502 # Switzerland
2503 # From Howse:
2504 # By the end of the 18th century clocks and watches became commonplace
2505 # and their performance improved enormously.  Communities began to keep
2506 # mean time in preference to apparent time -- Geneva from 1780 ....
2507 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
2508 # From Whitman (who writes ``Midnight?''):
2509 # Rule  Swiss   1940    only    -       Nov      2      0:00    1:00    S
2510 # Rule  Swiss   1940    only    -       Dec     31      0:00    0       -
2511 # From Shanks & Pottenger:
2512 # Rule  Swiss   1941    1942    -       May     Sun>=1       2:00    1:00    S
2513 # Rule  Swiss   1941    1942    -       Oct     Sun>=1       0:00    0       -
2514 
2515 # From Alois Treindl (2008-12-17):
2516 # I have researched the DST usage in Switzerland during the 1940ies.
2517 #
2518 # As I wrote in an earlier message, I suspected the current tzdata values
2519 # to be wrong. This is now verified.
2520 #
2521 # I have found copies of the original ruling by the Swiss Federal
2522 # government, in 'Eidgen[o]ssische Gesetzessammlung 1941 and 1942' (Swiss
2523 # federal law collection)...
2524 #
2525 # DST began on Monday 5 May 1941, 1:00 am by shifting the clocks to 2:00 am
2526 # DST ended on Monday 6 Oct 1941, 2:00 am by shifting the clocks to 1:00 am.
2527 #
2528 # DST began on Monday, 4 May 1942 at 01:00 am
2529 # DST ended on Monday, 5 Oct 1942 at 02:00 am
2530 #
2531 # There was no DST in 1940, I have checked the law collection carefully.
2532 # It is also indicated by the fact that the 1942 entry in the law
2533 # collection points back to 1941 as a reference, but no reference to any
2534 # other years are made.
2535 #
2536 # Newspaper articles I have read in the archives on 6 May 1941 reported
2537 # about the introduction of DST (Sommerzeit in German) during the previous
2538 # night as an absolute novelty, because this was the first time that such
2539 # a thing had happened in Switzerland.
2540 #
2541 # I have also checked 1916, because one book source (Gabriel, Traite de
2542 # l'heure dans le monde) claims that Switzerland had DST in 1916. This is
2543 # false, no official document could be found. Probably Gabriel got misled
2544 # by references to Germany, which introduced DST in 1916 for the first time.
2545 #
2546 # The tzdata rules for Switzerland must be changed to:
2547 # Rule  Swiss   1941    1942    -       May     Mon>=1  1:00    1:00    S
2548 # Rule  Swiss   1941    1942    -       Oct     Mon>=1  2:00    0       -
2549 #
2550 # The 1940 rules must be deleted.
2551 #
2552 # One further detail for Switzerland, which is probably out of scope for
2553 # most users of tzdata:
2554 # The zone file
2555 # Zone    Europe/Zurich   0:34:08 -       LMT     1848 Sep 12
2556 #                          0:29:44 -       BMT     1894 Jun #Bern Mean Time
2557 #                          1:00    Swiss   CE%sT   1981
2558 #                          1:00    EU      CE%sT
2559 # describes all of Switzerland correctly, with the exception of
2560 # the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not
2561 # follow Bern Mean Time but kept its own local mean time.
2562 # To represent this, an extra zone would be needed.
2563 
2564 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
2565 Rule    Swiss   1941    1942    -       May     Mon>=1       1:00    1:00    S
2566 Rule    Swiss   1941    1942    -       Oct     Mon>=1       2:00    0       -
2567 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2568 Zone    Europe/Zurich   0:34:08 -       LMT     1848 Sep 12
2569                         0:29:44 -       BMT     1894 Jun # Bern Mean Time
2570                         1:00    Swiss   CE%sT   1981
2571                         1:00    EU      CE%sT
2572 
2573 # Turkey
2574 
2575 # From Amar Devegowda (2007-01-03):
2576 # The time zone rules for Istanbul, Turkey have not been changed for years now.
2577 # ... The latest rules are available at -
2578 # http://www.timeanddate.com/worldclock/timezone.html?n=107
2579 # From Steffen Thorsen (2007-01-03):
2580 # I have been able to find press records back to 1996 which all say that
2581 # DST started 01:00 local time and end at 02:00 local time.  I am not sure
2582 # what happened before that.  One example for each year from 1996 to 2001:
2583 # http://newspot.byegm.gov.tr/arsiv/1996/21/N4.htm
2584 # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING97/03/97X03X25.TXT
2585 # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING98/03/98X03X02.HTM
2586 # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING99/10/99X10X26.HTM#%2016
2587 # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2000/03/00X03X06.HTM#%2021
2588 # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2001/03/23x03x01.HTM#%2027
2589 # From Paul Eggert (2007-01-03):
2590 # Prefer the above source to Shanks & Pottenger for time stamps after 1990.
2591 
2592 # From Steffen Thorsen (2007-03-09):
2593 # Starting 2007 though, it seems that they are adopting EU's 1:00 UTC
2594 # start/end time, according to the following page (2007-03-07):
2595 # http://www.ntvmsnbc.com/news/402029.asp
2596 # The official document is located here - it is in Turkish...:
2597 # http://rega.basbakanlik.gov.tr/eskiler/2007/03/20070307-7.htm
2598 # I was able to locate the following seemingly official document
2599 # (on a non-government server though) describing dates between 2002 and 2006:
2600 # http://www.alomaliye.com/bkk_2002_3769.htm
2601 
2602 # From G&ouml;kdeniz Karada&#x011f; (2011-03-10):
2603 #
2604 # According to the articles linked below, Turkey will change into summer
2605 # time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27.
2606 # This change is due to a nationwide exam on 27th.
2607 #
2608 # <a href="http://www.worldbulletin.net/?aType=haber&ArticleID=70872">
2609 # http://www.worldbulletin.net/?aType=haber&ArticleID=70872
2610 # </a>
2611 # Turkish:
2612 # <a href="http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373">
2613 # http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373
2614 # </a>
2615 
2616 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
2617 Rule    Turkey  1916    only    -       May      1      0:00    1:00    S
2618 Rule    Turkey  1916    only    -       Oct      1      0:00    0       -
2619 Rule    Turkey  1920    only    -       Mar     28      0:00    1:00    S
2620 Rule    Turkey  1920    only    -       Oct     25      0:00    0       -
2621 Rule    Turkey  1921    only    -       Apr      3      0:00    1:00    S
2622 Rule    Turkey  1921    only    -       Oct      3      0:00    0       -
2623 Rule    Turkey  1922    only    -       Mar     26      0:00    1:00    S
2624 Rule    Turkey  1922    only    -       Oct      8      0:00    0       -
2625 # Whitman gives 1923 Apr 28 - Sep 16 and no DST in 1924-1925;
2626 # go with Shanks & Pottenger.
2627 Rule    Turkey  1924    only    -       May     13      0:00    1:00    S
2628 Rule    Turkey  1924    1925    -       Oct      1      0:00    0       -
2629 Rule    Turkey  1925    only    -       May      1      0:00    1:00    S
2630 Rule    Turkey  1940    only    -       Jun     30      0:00    1:00    S
2631 Rule    Turkey  1940    only    -       Oct      5      0:00    0       -
2632 Rule    Turkey  1940    only    -       Dec      1      0:00    1:00    S
2633 Rule    Turkey  1941    only    -       Sep     21      0:00    0       -
2634 Rule    Turkey  1942    only    -       Apr      1      0:00    1:00    S
2635 # Whitman omits the next two transition and gives 1945 Oct 1;
2636 # go with Shanks & Pottenger.
2637 Rule    Turkey  1942    only    -       Nov      1      0:00    0       -
2638 Rule    Turkey  1945    only    -       Apr      2      0:00    1:00    S
2639 Rule    Turkey  1945    only    -       Oct      8      0:00    0       -
2640 Rule    Turkey  1946    only    -       Jun      1      0:00    1:00    S
2641 Rule    Turkey  1946    only    -       Oct      1      0:00    0       -
2642 Rule    Turkey  1947    1948    -       Apr     Sun>=16      0:00    1:00    S
2643 Rule    Turkey  1947    1950    -       Oct     Sun>=2       0:00    0       -
2644 Rule    Turkey  1949    only    -       Apr     10      0:00    1:00    S
2645 Rule    Turkey  1950    only    -       Apr     19      0:00    1:00    S
2646 Rule    Turkey  1951    only    -       Apr     22      0:00    1:00    S
2647 Rule    Turkey  1951    only    -       Oct      8      0:00    0       -
2648 Rule    Turkey  1962    only    -       Jul     15      0:00    1:00    S
2649 Rule    Turkey  1962    only    -       Oct      8      0:00    0       -
2650 Rule    Turkey  1964    only    -       May     15      0:00    1:00    S
2651 Rule    Turkey  1964    only    -       Oct      1      0:00    0       -
2652 Rule    Turkey  1970    1972    -       May     Sun>=2       0:00    1:00    S
2653 Rule    Turkey  1970    1972    -       Oct     Sun>=2       0:00    0       -
2654 Rule    Turkey  1973    only    -       Jun      3      1:00    1:00    S
2655 Rule    Turkey  1973    only    -       Nov      4      3:00    0       -
2656 Rule    Turkey  1974    only    -       Mar     31      2:00    1:00    S
2657 Rule    Turkey  1974    only    -       Nov      3      5:00    0       -
2658 Rule    Turkey  1975    only    -       Mar     30      0:00    1:00    S
2659 Rule    Turkey  1975    1976    -       Oct     lastSun 0:00    0       -
2660 Rule    Turkey  1976    only    -       Jun      1      0:00    1:00    S
2661 Rule    Turkey  1977    1978    -       Apr     Sun>=1       0:00    1:00    S
2662 Rule    Turkey  1977    only    -       Oct     16      0:00    0       -
2663 Rule    Turkey  1979    1980    -       Apr     Sun>=1       3:00    1:00    S
2664 Rule    Turkey  1979    1982    -       Oct     Mon>=11      0:00    0       -
2665 Rule    Turkey  1981    1982    -       Mar     lastSun 3:00    1:00    S
2666 Rule    Turkey  1983    only    -       Jul     31      0:00    1:00    S
2667 Rule    Turkey  1983    only    -       Oct      2      0:00    0       -
2668 Rule    Turkey  1985    only    -       Apr     20      0:00    1:00    S
2669 Rule    Turkey  1985    only    -       Sep     28      0:00    0       -
2670 Rule    Turkey  1986    1990    -       Mar     lastSun 2:00s   1:00    S
2671 Rule    Turkey  1986    1990    -       Sep     lastSun 2:00s   0       -
2672 Rule    Turkey  1991    2006    -       Mar     lastSun 1:00s   1:00    S
2673 Rule    Turkey  1991    1995    -       Sep     lastSun 1:00s   0       -
2674 Rule    Turkey  1996    2006    -       Oct     lastSun 1:00s   0       -
2675 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2676 Zone    Europe/Istanbul 1:55:52 -       LMT     1880
2677                         1:56:56 -       IMT     1910 Oct # Istanbul Mean Time?
2678                         2:00    Turkey  EE%sT   1978 Oct 15
2679                         3:00    Turkey  TR%sT   1985 Apr 20 # Turkey Time
2680                         2:00    Turkey  EE%sT   2007
2681                         2:00    EU      EE%sT   2011 Mar 27 1:00u
2682                         2:00    -       EET     2011 Mar 28 1:00u
2683                         2:00    EU      EE%sT
2684 Link    Europe/Istanbul Asia/Istanbul   # Istanbul is in both continents.
2685 
2686 # Ukraine
2687 #
2688 # From Igor Karpov, who works for the Ukranian Ministry of Justice,
2689 # via Garrett Wollman (2003-01-27):
2690 # BTW, I've found the official document on this matter. It's goverment
2691 # regulations number 509, May 13, 1996. In my poor translation it says:
2692 # "Time in Ukraine is set to second timezone (Kiev time). Each last Sunday
2693 # of March at 3am the time is changing to 4am and each last Sunday of
2694 # October the time at 4am is changing to 3am"
2695 
2696 # From Alexander Krivenyshev (2011-09-20):
2697 # On September 20, 2011 the deputies of the Verkhovna Rada agreed to
2698 # abolish the transfer clock to winter time.
2699 #
2700 # Bill number 8330 of MP from the Party of Regions Oleg Nadoshi got
2701 # approval from 266 deputies.
2702 #
2703 # Ukraine abolishes transter back to the winter time (in Russian)
2704 # <a href="http://news.mail.ru/politics/6861560/">
2705 # http://news.mail.ru/politics/6861560/
2706 # </a>
2707 #
2708 # The Ukrainians will no longer change the clock (in Russian)
2709 # <a href="http://www.segodnya.ua/news/14290482.html">
2710 # http://www.segodnya.ua/news/14290482.html
2711 # </a>
2712 #
2713 # Deputies cancelled the winter time (in Russian)
2714 # <a href="http://www.pravda.com.ua/rus/news/2011/09/20/6600616/">
2715 # http://www.pravda.com.ua/rus/news/2011/09/20/6600616/
2716 # </a>
2717 #
2718 # From Philip Pizzey (2011-10-18):
2719 # Today my Ukrainian colleagues have informed me that the
2720 # Ukrainian parliament have decided that they will go to winter
2721 # time this year after all.
2722 #
2723 # From Udo Schwedt (2011-10-18):
2724 # As far as I understand, the recent change to the Ukranian time zone
2725 # (Europe/Kiev) to introduce permanent daylight saving time (similar
2726 # to Russia) was reverted today:
2727 #
2728 # <a href="http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995">
2729 # http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995
2730 # </a>
2731 #
2732 # Also reported by Alexander Bokovoy (2011-10-18) who also noted:
2733 # The law documents themselves are at
2734 #
2735 # <a href="http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484">
2736 # http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484
2737 # </a>
2738 
2739 
2740 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
2741 # Most of Ukraine since 1970 has been like Kiev.
2742 # "Kyiv" is the transliteration of the Ukrainian name, but
2743 # "Kiev" is more common in English.
2744 Zone Europe/Kiev        2:02:04 -       LMT     1880
2745                         2:02:04 -       KMT     1924 May  2 # Kiev Mean Time
2746                         2:00    -       EET     1930 Jun 21
2747                         3:00    -       MSK     1941 Sep 20
2748                         1:00    C-Eur   CE%sT   1943 Nov  6
2749                         3:00    Russia  MSK/MSD 1990
2750                         3:00    -       MSK     1990 Jul  1 2:00
2751                         2:00    -       EET     1992
2752                         2:00    E-Eur   EE%sT   1995
2753                         2:00    EU      EE%sT
2754 # Ruthenia used CET 1990/1991.
2755 # "Uzhhorod" is the transliteration of the Ukrainian name, but
2756 # "Uzhgorod" is more common in English.
2757 Zone Europe/Uzhgorod    1:29:12 -       LMT     1890 Oct
2758                         1:00    -       CET     1940
2759                         1:00    C-Eur   CE%sT   1944 Oct
2760                         1:00    1:00    CEST    1944 Oct 26
2761                         1:00    -       CET     1945 Jun 29
2762                         3:00    Russia  MSK/MSD 1990
2763                         3:00    -       MSK     1990 Jul  1 2:00
2764                         1:00    -       CET     1991 Mar 31 3:00
2765                         2:00    -       EET     1992
2766                         2:00    E-Eur   EE%sT   1995
2767                         2:00    EU      EE%sT
2768 # Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991.
2769 # "Zaporizhia" is the transliteration of the Ukrainian name, but
2770 # "Zaporozh'ye" is more common in English.  Use the common English
2771 # spelling, except omit the apostrophe as it is not allowed in
2772 # portable Posix file names.
2773 Zone Europe/Zaporozhye  2:20:40 -       LMT     1880
2774                         2:20    -       CUT     1924 May  2 # Central Ukraine T
2775                         2:00    -       EET     1930 Jun 21
2776                         3:00    -       MSK     1941 Aug 25
2777                         1:00    C-Eur   CE%sT   1943 Oct 25
2778                         3:00    Russia  MSK/MSD 1991 Mar 31 2:00
2779                         2:00    E-Eur   EE%sT   1995
2780                         2:00    EU      EE%sT
2781 # Central Crimea used Moscow time 1994/1997.
2782 Zone Europe/Simferopol  2:16:24 -       LMT     1880
2783                         2:16    -       SMT     1924 May  2 # Simferopol Mean T
2784                         2:00    -       EET     1930 Jun 21
2785                         3:00    -       MSK     1941 Nov
2786                         1:00    C-Eur   CE%sT   1944 Apr 13
2787                         3:00    Russia  MSK/MSD 1990
2788                         3:00    -       MSK     1990 Jul  1 2:00
2789                         2:00    -       EET     1992
2790 # From Paul Eggert (2006-03-22):
2791 # The _Economist_ (1994-05-28, p 45) reports that central Crimea switched
2792 # from Kiev to Moscow time sometime after the January 1994 elections.
2793 # Shanks (1999) says ``date of change uncertain'', but implies that it happened
2794 # sometime between the 1994 DST switches.  Shanks & Pottenger simply say
2795 # 1994-09-25 03:00, but that can't be right.  For now, guess it
2796 # changed in May.
2797                         2:00    E-Eur   EE%sT   1994 May
2798 # From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev.
2799                         3:00    E-Eur   MSK/MSD 1996 Mar 31 3:00s
2800                         3:00    1:00    MSD     1996 Oct 27 3:00s
2801 # IATA SSIM (1997-09) says Crimea switched to EET/EEST.
2802 # Assume it happened in March by not changing the clocks.
2803                         3:00    Russia  MSK/MSD 1997
2804                         3:00    -       MSK     1997 Mar lastSun 1:00u
2805                         2:00    EU      EE%sT
2806 
2807 ###############################################################################
2808 
2809 # One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
2810 # the last Sunday in March to the last Sunday in September in 1986.
2811 # The source shows Romania changing a day later than everybody else.
2812 #
2813 # According to Bernard Sieloff's source, Poland is in the MET time zone but
2814 # uses the WE DST rules.  The Western USSR uses EET+1 and ME DST rules.
2815 # Bernard Sieloff's source claims Romania switches on the same day, but at
2816 # 00:00 standard time (i.e., 01:00 DST).  It also claims that Turkey
2817 # switches on the same day, but switches on at 01:00 standard time
2818 # and off at 00:00 standard time (i.e., 01:00 DST)
2819 
2820 # ...
2821 # Date: Wed, 28 Jan 87 16:56:27 -0100
2822 # From: Tom Hofmann
2823 # ...
2824 #
2825 # ...the European time rules are...standardized since 1981, when
2826 # most European coun[tr]ies started DST.  Before that year, only
2827 # a few countries (UK, France, Italy) had DST, each according
2828 # to own national rules.  In 1981, however, DST started on
2829 # 'Apr firstSun', and not on 'Mar lastSun' as in the following
2830 # years...
2831 # But also since 1981 there are some more national exceptions
2832 # than listed in 'europe': Switzerland, for example, joined DST
2833 # one year later, Denmark ended DST on 'Oct 1' instead of 'Sep
2834 # lastSun' in 1981---I don't know how they handle now.
2835 #
2836 # Finally, DST ist always from 'Apr 1' to 'Oct 1' in the
2837 # Soviet Union (as far as I know).
2838 #
2839 # Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG,
2840 # 4002 Basle, Switzerland
2841 # ...
2842 
2843 # ...
2844 # Date: Wed, 4 Feb 87 22:35:22 +0100
2845 # From: Dik T. Winter
2846 # ...
2847 #
2848 # The information from Tom Hofmann is (as far as I know) not entirely correct.
2849 # After a request from chongo at amdahl I tried to retrieve all information
2850 # about DST in Europe.  I was able to find all from about 1969.
2851 #
2852 # ...standardization on DST in Europe started in about 1977 with switches on
2853 # first Sunday in April and last Sunday in September...
2854 # In 1981 UK joined Europe insofar that
2855 # the starting day for both shifted to last Sunday in March.  And from 1982
2856 # the whole of Europe used DST, with switch dates April 1 and October 1 in
2857 # the Sov[i]et Union.  In 1985 the SU reverted to standard Europe[a]n switch
2858 # dates...
2859 #
2860 # It should also be remembered that time-zones are not constants; e.g.
2861 # Portugal switched in 1976 from MET (or CET) to WET with DST...
2862 # Note also that though there were rules for switch dates not
2863 # all countries abided to these dates, and many individual deviations
2864 # occurred, though not since 1982 I believe.  Another note: it is always
2865 # assumed that DST is 1 hour ahead of normal time, this need not be the
2866 # case; at least in the Netherlands there have been times when DST was 2 hours
2867 # in advance of normal time.
2868 #
2869 # ...
2870 # dik t. winter, cwi, amsterdam, nederland
2871 # ...
2872 
2873 # From Bob Devine (1988-01-28):
2874 # ...
2875 # Greece: Last Sunday in April to last Sunday in September (iffy on dates).
2876 # Since 1978.  Change at midnight.
2877 # ...
2878 # Monaco: has same DST as France.
2879 # ...