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. 7 # 8 # This code is distributed in the hope that it will be useful, but WITHOUT 9 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 # version 2 for more details (a copy is included in the LICENSE file that 12 # accompanied this code). 13 # 14 # You should have received a copy of the GNU General Public License version 15 # 2 along with this work; if not, write to the Free Software Foundation, 16 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 # 18 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 # or visit www.oracle.com if you need additional information or have any 20 # questions. 21 # 22 # tzdb data for Australasia and environs, and for much of the Pacific 23 24 # This file is in the public domain, so clarified as of 25 # 2009-05-17 by Arthur David Olson. 26 27 # This file also includes Pacific islands. 28 29 # Notes are at the end of this file 30 31 ############################################################################### 32 33 # Australia 34 35 # Please see the notes below for the controversy about "EST" versus "AEST" etc. 36 37 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 38 Rule Aus 1917 only - Jan 1 0:01 1:00 D 39 Rule Aus 1917 only - Mar 25 2:00 0 S 40 Rule Aus 1942 only - Jan 1 2:00 1:00 D 41 Rule Aus 1942 only - Mar 29 2:00 0 S 42 Rule Aus 1942 only - Sep 27 2:00 1:00 D 43 Rule Aus 1943 1944 - Mar lastSun 2:00 0 S 44 Rule Aus 1943 only - Oct 3 2:00 1:00 D 45 # Go with Whitman and the Australian National Standards Commission, which 46 # says W Australia didn't use DST in 1943/1944. Ignore Whitman's claim that 47 # 1944/1945 was just like 1943/1944. 48 49 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 50 # Northern Territory 51 Zone Australia/Darwin 8:43:20 - LMT 1895 Feb 52 9:00 - ACST 1899 May 53 9:30 Aus AC%sT 54 # Western Australia 55 # 56 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 57 Rule AW 1974 only - Oct lastSun 2:00s 1:00 D 58 Rule AW 1975 only - Mar Sun>=1 2:00s 0 S 59 Rule AW 1983 only - Oct lastSun 2:00s 1:00 D 60 Rule AW 1984 only - Mar Sun>=1 2:00s 0 S 61 Rule AW 1991 only - Nov 17 2:00s 1:00 D 62 Rule AW 1992 only - Mar Sun>=1 2:00s 0 S 63 Rule AW 2006 only - Dec 3 2:00s 1:00 D 64 Rule AW 2007 2009 - Mar lastSun 2:00s 0 S 65 Rule AW 2007 2008 - Oct lastSun 2:00s 1:00 D 66 Zone Australia/Perth 7:43:24 - LMT 1895 Dec 67 8:00 Aus AW%sT 1943 Jul 68 8:00 AW AW%sT 69 Zone Australia/Eucla 8:35:28 - LMT 1895 Dec 70 8:45 Aus +0845/+0945 1943 Jul 71 8:45 AW +0845/+0945 72 73 # Queensland 74 # 75 # From Alex Livingston (1996-11-01): 76 # I have heard or read more than once that some resort islands off the coast 77 # of Queensland chose to keep observing daylight-saving time even after 78 # Queensland ceased to. 79 # 80 # From Paul Eggert (1996-11-22): 81 # IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman, 82 # Hamilton) observed DST for two years after the rest of Queensland stopped. 83 # Hamilton is the largest, but there is also a Hamilton in Victoria, 84 # so use Lindeman. 85 # 86 # From J William Piggott (2016-02-20): 87 # There is no location named Holiday Islands in Queensland Australia; holiday 88 # islands is a colloquial term used globally. Hayman and Lindeman are at the 89 # north and south extremes of the Whitsunday Islands archipelago, and 90 # Hamilton is in between; it is reasonable to believe that this time zone 91 # applies to all of the Whitsundays. 92 # http://www.australia.gov.au/about-australia/australian-story/austn-islands 93 # 94 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 95 Rule AQ 1971 only - Oct lastSun 2:00s 1:00 D 96 Rule AQ 1972 only - Feb lastSun 2:00s 0 S 97 Rule AQ 1989 1991 - Oct lastSun 2:00s 1:00 D 98 Rule AQ 1990 1992 - Mar Sun>=1 2:00s 0 S 99 Rule Holiday 1992 1993 - Oct lastSun 2:00s 1:00 D 100 Rule Holiday 1993 1994 - Mar Sun>=1 2:00s 0 S 101 Zone Australia/Brisbane 10:12:08 - LMT 1895 102 10:00 Aus AE%sT 1971 103 10:00 AQ AE%sT 104 Zone Australia/Lindeman 9:55:56 - LMT 1895 105 10:00 Aus AE%sT 1971 106 10:00 AQ AE%sT 1992 Jul 107 10:00 Holiday AE%sT 108 109 # South Australia 110 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 111 Rule AS 1971 1985 - Oct lastSun 2:00s 1:00 D 112 Rule AS 1986 only - Oct 19 2:00s 1:00 D 113 Rule AS 1987 2007 - Oct lastSun 2:00s 1:00 D 114 Rule AS 1972 only - Feb 27 2:00s 0 S 115 Rule AS 1973 1985 - Mar Sun>=1 2:00s 0 S 116 Rule AS 1986 1990 - Mar Sun>=15 2:00s 0 S 117 Rule AS 1991 only - Mar 3 2:00s 0 S 118 Rule AS 1992 only - Mar 22 2:00s 0 S 119 Rule AS 1993 only - Mar 7 2:00s 0 S 120 Rule AS 1994 only - Mar 20 2:00s 0 S 121 Rule AS 1995 2005 - Mar lastSun 2:00s 0 S 122 Rule AS 2006 only - Apr 2 2:00s 0 S 123 Rule AS 2007 only - Mar lastSun 2:00s 0 S 124 Rule AS 2008 max - Apr Sun>=1 2:00s 0 S 125 Rule AS 2008 max - Oct Sun>=1 2:00s 1:00 D 126 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 127 Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb 128 9:00 - ACST 1899 May 129 9:30 Aus AC%sT 1971 130 9:30 AS AC%sT 131 132 # Tasmania 133 # 134 # From Paul Eggert (2005-08-16): 135 # http://www.bom.gov.au/climate/averages/tables/dst_times.shtml 136 # says King Island didn't observe DST from WWII until late 1971. 137 # 138 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 139 Rule AT 1967 only - Oct Sun>=1 2:00s 1:00 D 140 Rule AT 1968 only - Mar lastSun 2:00s 0 S 141 Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 D 142 Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 S 143 Rule AT 1972 only - Feb lastSun 2:00s 0 S 144 Rule AT 1973 1981 - Mar Sun>=1 2:00s 0 S 145 Rule AT 1982 1983 - Mar lastSun 2:00s 0 S 146 Rule AT 1984 1986 - Mar Sun>=1 2:00s 0 S 147 Rule AT 1986 only - Oct Sun>=15 2:00s 1:00 D 148 Rule AT 1987 1990 - Mar Sun>=15 2:00s 0 S 149 Rule AT 1987 only - Oct Sun>=22 2:00s 1:00 D 150 Rule AT 1988 1990 - Oct lastSun 2:00s 1:00 D 151 Rule AT 1991 1999 - Oct Sun>=1 2:00s 1:00 D 152 Rule AT 1991 2005 - Mar lastSun 2:00s 0 S 153 Rule AT 2000 only - Aug lastSun 2:00s 1:00 D 154 Rule AT 2001 max - Oct Sun>=1 2:00s 1:00 D 155 Rule AT 2006 only - Apr Sun>=1 2:00s 0 S 156 Rule AT 2007 only - Mar lastSun 2:00s 0 S 157 Rule AT 2008 max - Apr Sun>=1 2:00s 0 S 158 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 159 Zone Australia/Hobart 9:49:16 - LMT 1895 Sep 160 10:00 - AEST 1916 Oct 1 2:00 161 10:00 1:00 AEDT 1917 Feb 162 10:00 Aus AE%sT 1967 163 10:00 AT AE%sT 164 Zone Australia/Currie 9:35:28 - LMT 1895 Sep 165 10:00 - AEST 1916 Oct 1 2:00 166 10:00 1:00 AEDT 1917 Feb 167 10:00 Aus AE%sT 1971 Jul 168 10:00 AT AE%sT 169 170 # Victoria 171 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 172 Rule AV 1971 1985 - Oct lastSun 2:00s 1:00 D 173 Rule AV 1972 only - Feb lastSun 2:00s 0 S 174 Rule AV 1973 1985 - Mar Sun>=1 2:00s 0 S 175 Rule AV 1986 1990 - Mar Sun>=15 2:00s 0 S 176 Rule AV 1986 1987 - Oct Sun>=15 2:00s 1:00 D 177 Rule AV 1988 1999 - Oct lastSun 2:00s 1:00 D 178 Rule AV 1991 1994 - Mar Sun>=1 2:00s 0 S 179 Rule AV 1995 2005 - Mar lastSun 2:00s 0 S 180 Rule AV 2000 only - Aug lastSun 2:00s 1:00 D 181 Rule AV 2001 2007 - Oct lastSun 2:00s 1:00 D 182 Rule AV 2006 only - Apr Sun>=1 2:00s 0 S 183 Rule AV 2007 only - Mar lastSun 2:00s 0 S 184 Rule AV 2008 max - Apr Sun>=1 2:00s 0 S 185 Rule AV 2008 max - Oct Sun>=1 2:00s 1:00 D 186 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 187 Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb 188 10:00 Aus AE%sT 1971 189 10:00 AV AE%sT 190 191 # New South Wales 192 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 193 Rule AN 1971 1985 - Oct lastSun 2:00s 1:00 D 194 Rule AN 1972 only - Feb 27 2:00s 0 S 195 Rule AN 1973 1981 - Mar Sun>=1 2:00s 0 S 196 Rule AN 1982 only - Apr Sun>=1 2:00s 0 S 197 Rule AN 1983 1985 - Mar Sun>=1 2:00s 0 S 198 Rule AN 1986 1989 - Mar Sun>=15 2:00s 0 S 199 Rule AN 1986 only - Oct 19 2:00s 1:00 D 200 Rule AN 1987 1999 - Oct lastSun 2:00s 1:00 D 201 Rule AN 1990 1995 - Mar Sun>=1 2:00s 0 S 202 Rule AN 1996 2005 - Mar lastSun 2:00s 0 S 203 Rule AN 2000 only - Aug lastSun 2:00s 1:00 D 204 Rule AN 2001 2007 - Oct lastSun 2:00s 1:00 D 205 Rule AN 2006 only - Apr Sun>=1 2:00s 0 S 206 Rule AN 2007 only - Mar lastSun 2:00s 0 S 207 Rule AN 2008 max - Apr Sun>=1 2:00s 0 S 208 Rule AN 2008 max - Oct Sun>=1 2:00s 1:00 D 209 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 210 Zone Australia/Sydney 10:04:52 - LMT 1895 Feb 211 10:00 Aus AE%sT 1971 212 10:00 AN AE%sT 213 Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb 214 10:00 - AEST 1896 Aug 23 215 9:00 - ACST 1899 May 216 9:30 Aus AC%sT 1971 217 9:30 AN AC%sT 2000 218 9:30 AS AC%sT 219 220 # Lord Howe Island 221 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 222 Rule LH 1981 1984 - Oct lastSun 2:00 1:00 - 223 Rule LH 1982 1985 - Mar Sun>=1 2:00 0 - 224 Rule LH 1985 only - Oct lastSun 2:00 0:30 - 225 Rule LH 1986 1989 - Mar Sun>=15 2:00 0 - 226 Rule LH 1986 only - Oct 19 2:00 0:30 - 227 Rule LH 1987 1999 - Oct lastSun 2:00 0:30 - 228 Rule LH 1990 1995 - Mar Sun>=1 2:00 0 - 229 Rule LH 1996 2005 - Mar lastSun 2:00 0 - 230 Rule LH 2000 only - Aug lastSun 2:00 0:30 - 231 Rule LH 2001 2007 - Oct lastSun 2:00 0:30 - 232 Rule LH 2006 only - Apr Sun>=1 2:00 0 - 233 Rule LH 2007 only - Mar lastSun 2:00 0 - 234 Rule LH 2008 max - Apr Sun>=1 2:00 0 - 235 Rule LH 2008 max - Oct Sun>=1 2:00 0:30 - 236 Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb 237 10:00 - AEST 1981 Mar 238 10:30 LH +1030/+1130 1985 Jul 239 10:30 LH +1030/+11 240 241 # Australian miscellany 242 # 243 # Ashmore Is, Cartier 244 # no indigenous inhabitants; only seasonal caretakers 245 # no times are set 246 # 247 # Coral Sea Is 248 # no indigenous inhabitants; only meteorologists 249 # no times are set 250 # 251 # Macquarie 252 # Permanent occupation (scientific station) 1911-1915 and since 25 March 1948; 253 # sealing and penguin oil station operated Nov 1899 to Apr 1919. See the 254 # Tasmania Parks & Wildlife Service history of sealing at Macquarie Island 255 # http://www.parks.tas.gov.au/index.aspx?base=1828 256 # http://www.parks.tas.gov.au/index.aspx?base=1831 257 # Guess that it was like Australia/Hobart while inhabited before 2010. 258 # 259 # From Steffen Thorsen (2010-03-10): 260 # We got these changes from the Australian Antarctic Division: 261 # - Macquarie Island will stay on UTC+11 for winter and therefore not 262 # switch back from daylight savings time when other parts of Australia do 263 # on 4 April. 264 # 265 # From Arthur David Olson (2013-05-23): 266 # The 1919 transition is overspecified below so pre-2013 zics 267 # will produce a binary file with an [A]EST-type as the first 32-bit type; 268 # this is required for correct handling of times before 1916 by 269 # pre-2013 versions of localtime. 270 Zone Antarctica/Macquarie 0 - -00 1899 Nov 271 10:00 - AEST 1916 Oct 1 2:00 272 10:00 1:00 AEDT 1917 Feb 273 10:00 Aus AE%sT 1919 Apr 1 0:00s 274 0 - -00 1948 Mar 25 275 10:00 Aus AE%sT 1967 276 10:00 AT AE%sT 2010 Apr 4 3:00 277 11:00 - +11 278 279 # Christmas 280 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 281 Zone Indian/Christmas 7:02:52 - LMT 1895 Feb 282 7:00 - +07 283 284 # Cocos (Keeling) Is 285 # These islands were ruled by the Ross family from about 1830 to 1978. 286 # We don't know when standard time was introduced; for now, we guess 1900. 287 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 288 Zone Indian/Cocos 6:27:40 - LMT 1900 289 6:30 - +0630 290 291 292 # Fiji 293 294 # Milne gives 11:55:44 for Suva. 295 296 # From Alexander Krivenyshev (2009-11-10): 297 # According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST 298 # from November 29th 2009 to April 25th 2010. 299 # 300 # "Daylight savings to commence this month" 301 # http://www.radiofiji.com.fj/fullstory.php?id=23719 302 # http://www.worldtimezone.com/dst_news/dst_news_fiji01.html 303 304 # From Steffen Thorsen (2009-11-10): 305 # The Fiji Government has posted some more details about the approved 306 # amendments: 307 # http://www.fiji.gov.fj/publish/page_16198.shtml 308 309 # From Steffen Thorsen (2010-03-03): 310 # The Cabinet in Fiji has decided to end DST about a month early, on 311 # 2010-03-28 at 03:00. 312 # The plan is to observe DST again, from 2010-10-24 to sometime in March 313 # 2011 (last Sunday a good guess?). 314 # 315 # Official source: 316 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=1096:3310-cabinet-approves-change-in-daylight-savings-dates&catid=49:cabinet-releases&Itemid=166 317 # 318 # A bit more background info here: 319 # https://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html 320 321 # From Alexander Krivenyshev (2010-10-24): 322 # According to Radio Fiji and Fiji Times online, Fiji will end DST 3 323 # weeks earlier than expected - on March 6, 2011, not March 27, 2011... 324 # Here is confirmation from Government of the Republic of the Fiji Islands, 325 # Ministry of Information (fiji.gov.fj) web site: 326 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155 327 # http://www.worldtimezone.com/dst_news/dst_news_fiji04.html 328 329 # From Steffen Thorsen (2011-10-03): 330 # Now the dates have been confirmed, and at least our start date 331 # assumption was correct (end date was one week wrong). 332 # 333 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-saving-starts-in-fiji&catid=71:press-releases&Itemid=155 334 # which says 335 # Members of the public are reminded to change their time to one hour in 336 # advance at 2am to 3am on October 23, 2011 and one hour back at 3am to 337 # 2am on February 26 next year. 338 339 # From Ken Rylander (2011-10-24) 340 # Another change to the Fiji DST end date. In the TZ database the end date for 341 # Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22. 342 # 343 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=5017:amendments-to-daylight-savings&catid=71:press-releases&Itemid=155 344 # states: 345 # 346 # The end of daylight saving scheduled initially for the 26th of February 2012 347 # has been brought forward to the 22nd of January 2012. 348 # The commencement of daylight saving will remain unchanged and start 349 # on the 23rd of October, 2011. 350 351 # From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen: 352 # The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate 353 # today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st 354 # October 2012 and end at 3 am on Sunday 20th January 2013. 355 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155 356 357 # From the Fijian Government Media Center (2013-08-30) via David Wheeler: 358 # Fiji will start daylight savings on Sunday 27th October, 2013 ... 359 # move clocks forward by one hour from 2am 360 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx 361 362 # From Steffen Thorsen (2013-01-10): 363 # Fiji will end DST on 2014-01-19 02:00: 364 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx 365 366 # From Ken Rylander (2014-10-20): 367 # DST will start Nov. 2 this year. 368 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-NOVEMBER-2ND.aspx 369 370 # From a government order dated 2015-08-26 and published as Legal Notice No. 77 371 # in the Government of Fiji Gazette Supplement No. 24 (2015-08-28), 372 # via Ken Rylander (2015-09-02): 373 # the daylight saving period is 1 hour in advance of the standard time 374 # commencing at 2.00 am on Sunday 1st November, 2015 and ending at 375 # 3.00 am on Sunday 17th January, 2016. 376 377 # From Raymond Kumar (2016-10-04): 378 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-6th-NOVEMBER,-2016.aspx 379 # "Fiji's daylight savings will begin on Sunday, 6 November 2016, when 380 # clocks go forward an hour at 2am to 3am.... Daylight Saving will 381 # end at 3.00am on Sunday 15th January 2017." 382 383 # From Paul Eggert (2017-08-21): 384 # Dominic Fok writes (2017-08-20) that DST ends 2018-01-14, citing 385 # Extraordinary Government of Fiji Gazette Supplement No. 21 (2017-08-27), 386 # [Legal Notice No. 41] of an order of the previous day by J Usamate. 387 388 # From Raymond Kumar (2018-07-13): 389 # http://www.fijitimes.com/government-approves-2018-daylight-saving/ 390 # ... The daylight saving period will end at 3am on Sunday January 13, 2019. 391 # 392 # From Paul Eggert (2018-07-15): 393 # For now, guess DST from 02:00 the first Sunday in November to 03:00 394 # the first Sunday on or after January 13. January transitions reportedly 395 # depend on when school terms start. Although the guess is ad hoc, it matches 396 # transitions since late 2014 and seems more likely to match future 397 # practice than guessing no DST. 398 399 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 400 Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 - 401 Rule Fiji 1999 2000 - Feb lastSun 3:00 0 - 402 Rule Fiji 2009 only - Nov 29 2:00 1:00 - 403 Rule Fiji 2010 only - Mar lastSun 3:00 0 - 404 Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 - 405 Rule Fiji 2011 only - Mar Sun>=1 3:00 0 - 406 Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 - 407 Rule Fiji 2014 only - Jan Sun>=18 2:00 0 - 408 Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 - 409 Rule Fiji 2015 max - Jan Sun>=13 3:00 0 - 410 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 411 Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva 412 12:00 Fiji +12/+13 413 414 # French Polynesia 415 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 416 Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea 417 -9:00 - -09 418 Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct 419 -9:30 - -0930 420 Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete 421 -10:00 - -10 422 # Clipperton (near North America) is administered from French Polynesia; 423 # it is uninhabited. 424 425 # Guam 426 427 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 428 # http://guamlegislature.com/Public_Laws_5th/PL05-025.pdf 429 # http://documents.guam.gov/wp-content/uploads/E.O.-59-7-Guam-Daylight-Savings-Time-May-6-1959.pdf 430 Rule Guam 1959 only - Jun 27 2:00 1:00 D 431 # http://documents.guam.gov/wp-content/uploads/E.O.-61-5-Revocation-of-Daylight-Saving-Time-and-Restoratio.pdf 432 Rule Guam 1961 only - Jan 29 2:00 0 S 433 # http://documents.guam.gov/wp-content/uploads/E.O.-67-13-Guam-Daylight-Savings-Time.pdf 434 Rule Guam 1967 only - Sep 1 2:00 1:00 D 435 # http://documents.guam.gov/wp-content/uploads/E.O.-69-2-Repeal-of-Guam-Daylight-Saving-Time.pdf 436 Rule Guam 1969 only - Jan 26 0:01 0 S 437 # http://documents.guam.gov/wp-content/uploads/E.O.-69-10-Guam-Daylight-Saving-Time.pdf 438 Rule Guam 1969 only - Jun 22 2:00 1:00 D 439 Rule Guam 1969 only - Aug 31 2:00 0 S 440 # http://documents.guam.gov/wp-content/uploads/E.O.-70-10-Guam-Daylight-Saving-Time.pdf 441 # http://documents.guam.gov/wp-content/uploads/E.O.-70-30-End-of-Guam-Daylight-Saving-Time.pdf 442 # http://documents.guam.gov/wp-content/uploads/E.O.-71-5-Guam-Daylight-Savings-Time.pdf 443 Rule Guam 1970 1971 - Apr lastSun 2:00 1:00 D 444 Rule Guam 1970 1971 - Sep Sun>=1 2:00 0 S 445 # http://documents.guam.gov/wp-content/uploads/E.O.-73-28.-Guam-Day-light-Saving-Time.pdf 446 Rule Guam 1973 only - Dec 16 2:00 1:00 D 447 # http://documents.guam.gov/wp-content/uploads/E.O.-74-7-Guam-Daylight-Savings-Time-Rescinded.pdf 448 Rule Guam 1974 only - Feb 24 2:00 0 S 449 # http://documents.guam.gov/wp-content/uploads/E.O.-76-13-Daylight-Savings-Time.pdf 450 Rule Guam 1976 only - May 26 2:00 1:00 D 451 # http://documents.guam.gov/wp-content/uploads/E.O.-76-25-Revocation-of-E.O.-76-13.pdf 452 Rule Guam 1976 only - Aug 22 2:01 0 S 453 # http://documents.guam.gov/wp-content/uploads/E.O.-77-4-Daylight-Savings-Time.pdf 454 Rule Guam 1977 only - Apr 24 2:00 1:00 D 455 # http://documents.guam.gov/wp-content/uploads/E.O.-77-18-Guam-Standard-Time.pdf 456 Rule Guam 1977 only - Aug 28 2:00 0 S 457 458 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 459 Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 460 9:39:00 - LMT 1901 # Agana 461 10:00 - GST 1941 Dec 10 # Guam 462 9:00 - +09 1944 Jul 31 463 10:00 Guam G%sT 2000 Dec 23 464 10:00 - ChST # Chamorro Standard Time 465 Link Pacific/Guam Pacific/Saipan # N Mariana Is 466 467 # Kiribati 468 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 469 Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki 470 12:00 - +12 471 Zone Pacific/Enderbury -11:24:20 - LMT 1901 472 -12:00 - -12 1979 Oct 473 -11:00 - -11 1994 Dec 31 474 13:00 - +13 475 Zone Pacific/Kiritimati -10:29:20 - LMT 1901 476 -10:40 - -1040 1979 Oct 477 -10:00 - -10 1994 Dec 31 478 14:00 - +14 479 480 # N Mariana Is 481 # See Pacific/Guam. 482 483 # Marshall Is 484 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 485 Zone Pacific/Majuro 11:24:48 - LMT 1901 486 11:00 - +11 1914 Oct 487 9:00 - +09 1919 Feb 1 488 11:00 - +11 1937 489 10:00 - +10 1941 Apr 1 490 9:00 - +09 1944 Jan 30 491 11:00 - +11 1969 Oct 492 12:00 - +12 493 Zone Pacific/Kwajalein 11:09:20 - LMT 1901 494 11:00 - +11 1937 495 10:00 - +10 1941 Apr 1 496 9:00 - +09 1944 Feb 6 497 11:00 - +11 1969 Oct 498 -12:00 - -12 1993 Aug 20 24:00 499 12:00 - +12 500 501 # Micronesia 502 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 503 Zone Pacific/Chuuk -13:52:52 - LMT 1844 Dec 31 504 10:07:08 - LMT 1901 505 10:00 - +10 1914 Oct 506 9:00 - +09 1919 Feb 1 507 10:00 - +10 1941 Apr 1 508 9:00 - +09 1945 Aug 509 10:00 - +10 510 Zone Pacific/Pohnpei -13:27:08 - LMT 1844 Dec 31 # Kolonia 511 10:32:52 - LMT 1901 512 11:00 - +11 1914 Oct 513 9:00 - +09 1919 Feb 1 514 11:00 - +11 1937 515 10:00 - +10 1941 Apr 1 516 9:00 - +09 1945 Aug 517 11:00 - +11 518 Zone Pacific/Kosrae -13:08:04 - LMT 1844 Dec 31 519 10:51:56 - LMT 1901 520 11:00 - +11 1914 Oct 521 9:00 - +09 1919 Feb 1 522 11:00 - +11 1937 523 10:00 - +10 1941 Apr 1 524 9:00 - +09 1945 Aug 525 11:00 - +11 1969 Oct 526 12:00 - +12 1999 527 11:00 - +11 528 529 # Nauru 530 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 531 Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe 532 11:30 - +1130 1942 Aug 29 533 9:00 - +09 1945 Sep 8 534 11:30 - +1130 1979 Feb 10 2:00 535 12:00 - +12 536 537 # New Caledonia 538 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 539 Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 - 540 Rule NC 1978 1979 - Feb 27 0:00 0 - 541 Rule NC 1996 only - Dec 1 2:00s 1:00 - 542 # Shanks & Pottenger say the following was at 2:00; go with IATA. 543 Rule NC 1997 only - Mar 2 2:00s 0 - 544 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 545 Zone Pacific/Noumea 11:05:48 - LMT 1912 Jan 13 # Nouméa 546 11:00 NC +11/+12 547 548 549 ############################################################################### 550 551 # New Zealand 552 553 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 554 Rule NZ 1927 only - Nov 6 2:00 1:00 S 555 Rule NZ 1928 only - Mar 4 2:00 0 M 556 Rule NZ 1928 1933 - Oct Sun>=8 2:00 0:30 S 557 Rule NZ 1929 1933 - Mar Sun>=15 2:00 0 M 558 Rule NZ 1934 1940 - Apr lastSun 2:00 0 M 559 Rule NZ 1934 1940 - Sep lastSun 2:00 0:30 S 560 Rule NZ 1946 only - Jan 1 0:00 0 S 561 # Since 1957 Chatham has been 45 minutes ahead of NZ, but until 2018a 562 # there was no documented single notation for the date and time of this 563 # transition. Duplicate the Rule lines for now, to give the 2018a change 564 # time to percolate out. 565 Rule NZ 1974 only - Nov Sun>=1 2:00s 1:00 D 566 Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 - 567 Rule NZ 1975 only - Feb lastSun 2:00s 0 S 568 Rule Chatham 1975 only - Feb lastSun 2:45s 0 - 569 Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D 570 Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 - 571 Rule NZ 1976 1989 - Mar Sun>=1 2:00s 0 S 572 Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 - 573 Rule NZ 1989 only - Oct Sun>=8 2:00s 1:00 D 574 Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 - 575 Rule NZ 1990 2006 - Oct Sun>=1 2:00s 1:00 D 576 Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 - 577 Rule NZ 1990 2007 - Mar Sun>=15 2:00s 0 S 578 Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 - 579 Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D 580 Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 - 581 Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S 582 Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 - 583 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 584 Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2 585 11:30 NZ NZ%sT 1946 Jan 1 586 12:00 NZ NZ%sT 587 Zone Pacific/Chatham 12:13:48 - LMT 1868 Nov 2 588 12:15 - +1215 1946 Jan 1 589 12:45 Chatham +1245/+1345 590 591 Link Pacific/Auckland Antarctica/McMurdo 592 593 # Auckland Is 594 # uninhabited; Māori and Moriori, colonial settlers, pastoralists, sealers, 595 # and scientific personnel have wintered 596 597 # Campbell I 598 # minor whaling stations operated 1909/1914 599 # scientific station operated 1941/1995; 600 # previously whalers, sealers, pastoralists, and scientific personnel wintered 601 # was probably like Pacific/Auckland 602 603 # Cook Is 604 # From Shanks & Pottenger: 605 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 606 Rule Cook 1978 only - Nov 12 0:00 0:30 - 607 Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 - 608 Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 - 609 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 610 Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua 611 -10:30 - -1030 1978 Nov 12 612 -10:00 Cook -10/-0930 613 614 ############################################################################### 615 616 617 # Niue 618 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 619 Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi 620 -11:20 - -1120 1951 621 -11:30 - -1130 1978 Oct 1 622 -11:00 - -11 623 624 # Norfolk 625 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 626 Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston 627 11:12 - +1112 1951 628 11:30 - +1130 1974 Oct 27 02:00 629 11:30 1:00 +1230 1975 Mar 2 02:00 630 11:30 - +1130 2015 Oct 4 02:00 631 11:00 - +11 632 633 # Palau (Belau) 634 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 635 Zone Pacific/Palau -15:02:04 - LMT 1844 Dec 31 # Koror 636 8:57:56 - LMT 1901 637 9:00 - +09 638 639 # Papua New Guinea 640 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 641 Zone Pacific/Port_Moresby 9:48:40 - LMT 1880 642 9:48:32 - PMMT 1895 # Port Moresby Mean Time 643 10:00 - +10 644 # 645 # From Paul Eggert (2014-10-13): 646 # Base the Bougainville entry on the Arawa-Kieta region, which appears to have 647 # the most people even though it was devastated in the Bougainville Civil War. 648 # 649 # Although Shanks gives 1942-03-15 / 1943-11-01 for UT +09, these dates 650 # are apparently rough guesswork from the starts of military campaigns. 651 # The World War II entries below are instead based on Arawa-Kieta. 652 # The Japanese occupied Kieta in July 1942, 653 # according to the Pacific War Online Encyclopedia 654 # https://pwencycl.kgbudge.com/B/o/Bougainville.htm 655 # and seem to have controlled it until their 1945-08-21 surrender. 656 # 657 # The Autonomous Region of Bougainville switched from UT +10 to +11 658 # on 2014-12-28 at 02:00. They call +11 "Bougainville Standard Time". 659 # See: 660 # http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/ 661 # 662 Zone Pacific/Bougainville 10:22:16 - LMT 1880 663 9:48:32 - PMMT 1895 664 10:00 - +10 1942 Jul 665 9:00 - +09 1945 Aug 21 666 10:00 - +10 2014 Dec 28 2:00 667 11:00 - +11 668 669 # Pitcairn 670 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 671 Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown 672 -8:30 - -0830 1998 Apr 27 0:00 673 -8:00 - -08 674 675 # American Samoa 676 Zone Pacific/Pago_Pago 12:37:12 - LMT 1892 Jul 5 677 -11:22:48 - LMT 1911 678 -11:00 - SST # S=Samoa 679 Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands 680 681 # Samoa (formerly and also known as Western Samoa) 682 683 # From Steffen Thorsen (2009-10-16): 684 # We have been in contact with the government of Samoa again, and received 685 # the following info: 686 # 687 # "Cabinet has now approved Daylight Saving to be effected next year 688 # commencing from the last Sunday of September 2010 and conclude first 689 # Sunday of April 2011." 690 # 691 # Background info: 692 # https://www.timeanddate.com/news/time/samoa-dst-plan-2009.html 693 # 694 # Samoa's Daylight Saving Time Act 2009 is available here, but does not 695 # contain any dates: 696 # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf 697 698 # From Laupue Raymond Hughes (2010-10-07): 699 # Please see 700 # http://www.mcil.gov.ws 701 # the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday 702 # September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight 703 # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks 704 # backwards from 1:00am to 12:00am" 705 706 # From Laupue Raymond Hughes (2011-03-07): 707 # [http://www.mcil.gov.ws/ftcd/daylight_saving_2011.pdf] 708 # 709 # ... when the standard time strikes the hour of four o'clock (4.00am 710 # or 0400 Hours) on the 2nd April 2011, then all instruments used to 711 # measure standard time are to be adjusted/changed to three o'clock 712 # (3:00am or 0300Hrs). 713 714 # From David Zülke (2011-05-09): 715 # Subject: Samoa to move timezone from east to west of international date line 716 # 717 # http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963 718 719 # From Paul Eggert (2014-06-27): 720 # The International Date Line Act 2011 721 # http://www.parliament.gov.ws/images/ACTS/International_Date_Line_Act__2011_-_Eng.pdf 722 # changed Samoa from UT -11 to +13, effective "12 o'clock midnight, on 723 # Thursday 29th December 2011". The International Date Line was adjusted 724 # accordingly. 725 726 # From Laupue Raymond Hughes (2011-09-02): 727 # http://www.mcil.gov.ws/mcil_publications.html 728 # 729 # here is the official website publication for Samoa DST and dateline change 730 # 731 # DST 732 # Year End Time Start Time 733 # 2011 - - - - - - 24 September 3:00am to 4:00am 734 # 2012 01 April 4:00am to 3:00am - - - - - - 735 # 736 # Dateline Change skip Friday 30th Dec 2011 737 # Thursday 29th December 2011 23:59:59 Hours 738 # Saturday 31st December 2011 00:00:00 Hours 739 # 740 # From Nicholas Pereira (2012-09-10): 741 # Daylight Saving Time commences on Sunday 30th September 2012 and 742 # ends on Sunday 7th of April 2013.... 743 # http://www.mcil.gov.ws/mcil_publications.html 744 # 745 # From Paul Eggert (2014-07-08): 746 # That web page currently lists transitions for 2012/3 and 2013/4. 747 # Assume the pattern instituted in 2012 will continue indefinitely. 748 749 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 750 Rule WS 2010 only - Sep lastSun 0:00 1 - 751 Rule WS 2011 only - Apr Sat>=1 4:00 0 - 752 Rule WS 2011 only - Sep lastSat 3:00 1 - 753 Rule WS 2012 max - Apr Sun>=1 4:00 0 - 754 Rule WS 2012 max - Sep lastSun 3:00 1 - 755 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 756 Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5 757 -11:26:56 - LMT 1911 758 -11:30 - -1130 1950 759 -11:00 WS -11/-10 2011 Dec 29 24:00 760 13:00 WS +13/+14 761 762 # Solomon Is 763 # excludes Bougainville, for which see Papua New Guinea 764 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 765 Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara 766 11:00 - +11 767 768 # Tokelau 769 # 770 # From Gwillim Law (2011-12-29) 771 # A correspondent informed me that Tokelau, like Samoa, will be skipping 772 # December 31 this year ... 773 # 774 # From Steffen Thorsen (2012-07-25) 775 # ... we double checked by calling hotels and offices based in Tokelau asking 776 # about the time there, and they all told a time that agrees with UTC+13.... 777 # Shanks says UT-10 from 1901 [but] ... there is a good chance the change 778 # actually was to UT-11 back then. 779 # 780 # From Paul Eggert (2012-07-25) 781 # A Google Books snippet of Appendix to the Journals of the House of 782 # Representatives of New Zealand, Session 1948, 783 # <https://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau 784 # was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger 785 # are off by an hour starting in 1901. 786 787 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 788 Zone Pacific/Fakaofo -11:24:56 - LMT 1901 789 -11:00 - -11 2011 Dec 30 790 13:00 - +13 791 792 # Tonga 793 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 794 Rule Tonga 1999 only - Oct 7 2:00s 1:00 - 795 Rule Tonga 2000 only - Mar 19 2:00s 0 - 796 Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 - 797 Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - 798 Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 - 799 Rule Tonga 2017 only - Jan Sun>=15 3:00 0 - 800 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 801 Zone Pacific/Tongatapu 12:19:20 - LMT 1901 802 12:20 - +1220 1941 803 13:00 - +13 1999 804 13:00 Tonga +13/+14 805 806 # Tuvalu 807 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 808 Zone Pacific/Funafuti 11:56:52 - LMT 1901 809 12:00 - +12 810 811 812 # US minor outlying islands 813 814 # Howland, Baker 815 # Howland was mined for guano by American companies 1857-1878 and British 816 # 1886-1891; Baker was similar but exact dates are not known. 817 # Inhabited by civilians 1935-1942; U.S. military bases 1943-1944; 818 # uninhabited thereafter. 819 # Howland observed Hawaii Standard Time (UT -10:30) in 1937; 820 # see page 206 of Elgen M. Long and Marie K. Long, 821 # Amelia Earhart: the Mystery Solved, Simon & Schuster (2000). 822 # So most likely Howland and Baker observed Hawaii Time from 1935 823 # until they were abandoned after the war. 824 825 # Jarvis 826 # Mined for guano by American companies 1857-1879 and British 1883?-1891?. 827 # Inhabited by civilians 1935-1942; IGY scientific base 1957-1958; 828 # uninhabited thereafter. 829 # no information; was probably like Pacific/Kiritimati 830 831 # Johnston 832 # 833 # From Paul Eggert (2017-02-10): 834 # Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind. 835 # Details are uncertain. We have no data for Johnston after 1970, so 836 # treat it like Hawaii for now. Since Johnston is now uninhabited, 837 # its link to Pacific/Honolulu is in the 'backward' file. 838 # 839 # In his memoirs of June 6th to October 4, 1945 840 # <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes, 841 # "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM 842 # Johnston time, 1:30 AM Kwajalein time." This was in June 1945, and 843 # confirms that Johnston kept the same time as Honolulu in summer 1945. 844 # 845 # From Lyle McElhaney (2014-03-11): 846 # [W]hen JI was being used for that [atomic bomb] testing, the time being used 847 # was not Hawaiian time but rather the same time being used on the ships, 848 # which had a GMT offset of -11 hours. This apparently applied to at least the 849 # time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last 850 # Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin, 851 # "The United States High-Altitude Test Experience: A Review Emphasizing the 852 # Impact on the Environment", Los Alamos LA-6405, Oct 1976. 853 # https://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf 854 # See the table on page 4 where he lists GMT and local times for the tests; a 855 # footnote for the JI tests reads that local time is "JI time = Hawaii Time 856 # Minus One Hour". 857 858 # Kingman 859 # uninhabited 860 861 # Midway 862 # See Pacific/Pago_Pago. 863 864 # Palmyra 865 # uninhabited since World War II; was probably like Pacific/Kiritimati 866 867 # Wake 868 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 869 Zone Pacific/Wake 11:06:28 - LMT 1901 870 12:00 - +12 871 872 873 # Vanuatu 874 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 875 Rule Vanuatu 1983 only - Sep 25 0:00 1:00 - 876 Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 - 877 Rule Vanuatu 1984 only - Oct 23 0:00 1:00 - 878 Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 - 879 Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 - 880 Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 - 881 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 882 Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 883 11:00 Vanuatu +11/+12 884 885 # Wallis and Futuna 886 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 887 Zone Pacific/Wallis 12:15:20 - LMT 1901 888 12:00 - +12 889 890 ############################################################################### 891 892 # NOTES 893 894 # This file is by no means authoritative; if you think you know better, 895 # go ahead and edit the file (and please send any changes to 896 # tz@iana.org for general use in the future). For more, please see 897 # the file CONTRIBUTING in the tz distribution. 898 899 # From Paul Eggert (2018-11-18): 900 # 901 # Unless otherwise specified, the source for data through 1990 is: 902 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 903 # San Diego: ACS Publications, Inc. (2003). 904 # Unfortunately this book contains many errors and cites no sources. 905 # 906 # Many years ago Gwillim Law wrote that a good source 907 # for time zone data was the International Air Transport 908 # Association's Standard Schedules Information Manual (IATA SSIM), 909 # published semiannually. Law sent in several helpful summaries 910 # of the IATA's data after 1990. Except where otherwise noted, 911 # IATA SSIM is the source for entries after 1990. 912 # 913 # Another source occasionally used is Edward W. Whitman, World Time Differences, 914 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which 915 # I found in the UCLA library. 916 # 917 # For data circa 1899, a common source is: 918 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 919 # https://www.jstor.org/stable/1774359 920 # 921 # A reliable and entertaining source about time zones is 922 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). 923 # 924 # I invented the abbreviation marked "*". 925 # The following abbreviations are from other sources. 926 # Corrections are welcome! 927 # std dst 928 # LMT Local Mean Time 929 # 8:00 AWST AWDT Western Australia 930 # 9:30 ACST ACDT Central Australia 931 # 10:00 AEST AEDT Eastern Australia 932 # 10:00 GST GDT* Guam through 2000 933 # 10:00 ChST Chamorro 934 # 11:30 NZMT NZST New Zealand through 1945 935 # 12:00 NZST NZDT New Zealand 1946-present 936 # -11:00 SST Samoa 937 # -10:00 HST Hawaii 938 # 939 # See the 'northamerica' file for Hawaii. 940 # See the 'southamerica' file for Easter I and the Galápagos Is. 941 942 ############################################################################### 943 944 # Australia 945 946 # From Paul Eggert (2014-06-30): 947 # Daylight saving time has long been controversial in Australia, pitting 948 # region against region, rural against urban, and local against global. 949 # For example, in her review of Graeme Davison's _The Unforgiving 950 # Minute: how Australians learned to tell the time_ (1993), Perth native 951 # Phillipa J Martyr wrote, "The section entitled 'Saving Daylight' was 952 # very informative, but was (as can, sadly, only be expected from a 953 # Melbourne-based study) replete with the usual chuckleheaded 954 # Queenslanders and straw-chewing yokels from the West prattling fables 955 # about fading curtains and crazed farm animals." 956 # Electronic Journal of Australian and New Zealand History (1997-03-03) 957 # http://www.jcu.edu.au/aff/history/reviews/davison.htm 958 959 # From Paul Eggert (2005-12-08): 960 # Implementation Dates of Daylight Saving Time within Australia 961 # http://www.bom.gov.au/climate/averages/tables/dst_times.shtml 962 # summarizes daylight saving issues in Australia. 963 964 # From Arthur David Olson (2005-12-12): 965 # Lawlink NSW:Daylight Saving in New South Wales 966 # http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving 967 # covers New South Wales in particular. 968 969 # From John Mackin (1991-03-06): 970 # We in Australia have _never_ referred to DST as 'daylight' time. 971 # It is called 'summer' time. Now by a happy coincidence, 'summer' 972 # and 'standard' happen to start with the same letter; hence, the 973 # abbreviation does _not_ change... 974 # The legislation does not actually define abbreviations, at least 975 # in this State, but the abbreviation is just commonly taken to be the 976 # initials of the phrase, and the legislation here uniformly uses 977 # the phrase 'summer time' and does not use the phrase 'daylight 978 # time'. 979 # Announcers on the Commonwealth radio network, the ABC (for Australian 980 # Broadcasting Commission), use the phrases 'Eastern Standard Time' 981 # or 'Eastern Summer Time'. (Note, though, that as I say in the 982 # current australasia file, there is really no such thing.) Announcers 983 # on its overseas service, Radio Australia, use the same phrases 984 # prefixed by the word 'Australian' when referring to local times; 985 # time announcements on that service, naturally enough, are made in UTC. 986 987 # From Paul Eggert (2014-06-30): 988 # 989 # Inspired by Mackin's remarks quoted above, earlier versions of this 990 # file used "EST" for both Eastern Standard Time and Eastern Summer 991 # Time in Australia, and similarly for "CST", "CWST", and "WST". 992 # However, these abbreviations were confusing and were not common 993 # practice among Australians, and there were justifiable complaints 994 # about them, so I attempted to survey current Australian usage. 995 # For the tz database, the full English phrase is not that important; 996 # what matters is the abbreviation. It's difficult to survey the web 997 # directly for abbreviation usage, as there are so many false hits for 998 # strings like "EST" and "EDT", so I looked for pages that defined an 999 # abbreviation for eastern or central DST in Australia, and got the 1000 # following numbers of unique hits for the listed Google queries: 1001 # 1002 # 10 "Eastern Daylight Time AEST" site:au [some are false hits] 1003 # 10 "Eastern Summer Time AEST" site:au 1004 # 10 "Summer Time AEDT" site:au 1005 # 13 "EDST Eastern Daylight Saving Time" site:au 1006 # 18 "Summer Time ESST" site:au 1007 # 28 "Eastern Daylight Saving Time EDST" site:au 1008 # 39 "EDT Eastern Daylight Time" site:au [some are false hits] 1009 # 53 "Eastern Daylight Time EDT" site:au [some are false hits] 1010 # 54 "AEDT Australian Eastern Daylight Time" site:au 1011 # 182 "Eastern Daylight Time AEDT" site:au 1012 # 1013 # 17 "Central Daylight Time CDT" site:au [some are false hits] 1014 # 46 "Central Daylight Time ACDT" site:au 1015 # 1016 # I tried several other variants (e.g., "Eastern Summer Time EST") but 1017 # they all returned fewer than 10 unique hits. I also looked for pages 1018 # mentioning both "western standard time" and an abbreviation, since 1019 # there is no WST in the US to generate false hits, and found: 1020 # 1021 # 156 "western standard time" AWST site:au 1022 # 226 "western standard time" WST site:au 1023 # 1024 # I then surveyed the top ten newspapers in Australia by circulation as 1025 # listed in Wikipedia, using Google queries like "AEDT site:heraldsun.com.au" 1026 # and obtaining estimated counts from the initial page of search results. 1027 # All ten papers greatly preferred "AEDT" to "EDT". The papers 1028 # surveyed were the Herald Sun, The Daily Telegraph, The Courier-Mail, 1029 # The Sydney Morning Herald, The West Australian, The Age, The Advertiser, 1030 # The Australian, The Financial Review, and The Herald (Newcastle). 1031 # 1032 # I also searched for historical usage, to see whether abbreviations 1033 # like "AEDT" are new. A Trove search <http://trove.nla.gov.au/> 1034 # found only one newspaper (The Canberra Times) with a house style 1035 # dating back to the 1970s, I expect because other newspapers weren't 1036 # fully indexed. The Canberra Times strongly preferred abbreviations 1037 # like "AEDT". The first occurrence of "AEDT" was a World Weather 1038 # column (1971-11-17, page 24), and of "ACDT" was a Scoreboard column 1039 # (1993-01-24, p 16). The style was the typical usage but was not 1040 # strictly enforced; for example, "Welcome to the twilight zones ..." 1041 # (1994-10-29, p 1) uses the abbreviations AEST/AEDT, CST/CDT, and 1042 # WST, and goes on to say, "The confusion and frustration some feel 1043 # about the lack of uniformity among Australia's six states and two 1044 # territories has prompted one group to form its very own political 1045 # party -- the Sydney-based Daylight Saving Extension Party." 1046 # 1047 # I also surveyed federal government sources. They did not agree: 1048 # 1049 # The Australian Government (2014-03-26) 1050 # http://australia.gov.au/about-australia/our-country/time 1051 # (This document was produced by the Department of Finance.) 1052 # AEST ACST AWST AEDT ACDT 1053 # 1054 # Bureau of Meteorology (2012-11-08) 1055 # http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml 1056 # EST CST WST EDT CDT 1057 # 1058 # Civil Aviation Safety Authority (undated) 1059 # http://services.casa.gov.au/outnback/inc/pages/episode3/episode-3_time_zones.shtml 1060 # EST CST WST (no abbreviations given for DST) 1061 # 1062 # Geoscience Australia (2011-11-24) 1063 # http://www.ga.gov.au/geodesy/astro/sunrise.jsp 1064 # AEST ACST AWST AEDT ACDT 1065 # 1066 # Parliamentary Library (2008-11-10) 1067 # https://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf 1068 # EST CST WST preferred for standard time; AEST AEDT ACST ACDT also used 1069 # 1070 # The Transport Safety Bureau has an extensive series of accident reports, 1071 # and investigators seem to use whatever abbreviation they like. 1072 # Googling site:atsb.gov.au found the following number of unique hits: 1073 # 311 "ESuT", 195 "EDT", 26 "AEDT", 83 "CSuT", 46 "CDT". 1074 # "_SuT" tended to appear in older reports, and "A_DT" tended to 1075 # appear in reports of events with international implications. 1076 # 1077 # From the above it appears that there is a working consensus in 1078 # Australia to use trailing "DT" for daylight saving time; although 1079 # some sources use trailing "SST" or "ST" or "SuT" they are by far in 1080 # the minority. The case for leading "A" is weaker, but since it 1081 # seems to be preferred in the overall web and is preferred in all 1082 # the leading newspaper websites and in many government departments, 1083 # it has a stronger case than omitting the leading "A". The current 1084 # version of the database therefore uses abbreviations like "AEST" and 1085 # "AEDT" for Australian time zones. 1086 1087 # From Paul Eggert (1995-12-19): 1088 # Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ. 1089 # Mark Prior writes that his newspaper 1090 # reports that NSW's fall 1995 change will occur at 2:00, 1091 # but Robert Elz says it's been 3:00 in Victoria since 1970 1092 # and perhaps the newspaper's '2:00' is referring to standard time. 1093 # For now we'll continue to assume 2:00s for changes since 1960. 1094 1095 # From Eric Ulevik (1998-01-05): 1096 # 1097 # Here are some URLs to Australian time legislation. These URLs are stable, 1098 # and should probably be included in the data file. There are probably more 1099 # relevant entries in this database. 1100 # 1101 # NSW (including LHI and Broken Hill): 1102 # Standard Time Act 1987 (updated 1995-04-04) 1103 # https://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html 1104 # ACT 1105 # Standard Time and Summer Time Act 1972 1106 # https://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html 1107 # SA 1108 # Standard Time Act, 1898 1109 # https://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html 1110 1111 # From David Grosz (2005-06-13): 1112 # It was announced last week that Daylight Saving would be extended by 1113 # one week next year to allow for the 2006 Commonwealth Games. 1114 # Daylight Saving is now to end for next year only on the first Sunday 1115 # in April instead of the last Sunday in March. 1116 # 1117 # From Gwillim Law (2005-06-14): 1118 # I did some Googling and found that all of those states (and territory) plan 1119 # to extend DST together in 2006. 1120 # ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt 1121 # New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html 1122 # South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html 1123 # Tasmania: http://www.media.tas.gov.au/release.php?id=14772 1124 # Victoria: I wasn't able to find anything separate, but the other articles 1125 # allude to it. 1126 # But not Queensland 1127 # http://www.news.com.au/story/0,10117,15564030-1248,00.html 1128 1129 # Northern Territory 1130 1131 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1132 # # The NORTHERN TERRITORY.. [ Courtesy N.T. Dept of the Chief Minister ] 1133 # # [ Nov 1990 ] 1134 # # N.T. have never utilised any DST due to sub-tropical/tropical location. 1135 # ... 1136 # Zone Australia/North 9:30 - CST 1137 1138 # From Bradley White (1991-03-04): 1139 # A recent excerpt from an Australian newspaper... 1140 # the Northern Territory do[es] not have daylight saving. 1141 1142 # Western Australia 1143 1144 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1145 # # The state of WESTERN AUSTRALIA.. [ Courtesy W.A. dept Premier+Cabinet ] 1146 # # [ Nov 1990 ] 1147 # # W.A. suffers from a great deal of public and political opposition to 1148 # # DST in principle. A bill is brought before parliament in most years, but 1149 # # usually defeated either in the upper house, or in party caucus 1150 # # before reaching parliament. 1151 # ... 1152 # Zone Australia/West 8:00 AW %sST 1153 # ... 1154 # Rule AW 1974 only - Oct lastSun 2:00 1:00 D 1155 # Rule AW 1975 only - Mar Sun>=1 3:00 0 W 1156 # Rule AW 1983 only - Oct lastSun 2:00 1:00 D 1157 # Rule AW 1984 only - Mar Sun>=1 3:00 0 W 1158 1159 # From Bradley White (1991-03-04): 1160 # A recent excerpt from an Australian newspaper... 1161 # Western Australia...do[es] not have daylight saving. 1162 1163 # From John D. Newman via Bradley White (1991-11-02): 1164 # Western Australia is still on "winter time". Some DH in Sydney 1165 # rang me at home a few days ago at 6.00am. (He had just arrived at 1166 # work at 9.00am.) 1167 # W.A. is switching to Summer Time on Nov 17th just to confuse 1168 # everybody again. 1169 1170 # From Arthur David Olson (1992-03-08): 1171 # The 1992 ending date used in the rules is a best guess; 1172 # it matches what was used in the past. 1173 1174 # The Australian Bureau of Meteorology FAQ 1175 # http://www.bom.gov.au/faq/faqgen.htm 1176 # (1999-09-27) writes that Giles Meteorological Station uses 1177 # South Australian time even though it's located in Western Australia. 1178 1179 # From Paul Eggert (2018-04-01): 1180 # The Guardian Express of Perth, Australia reported today that the 1181 # government decided to advance the clocks permanently on January 1, 1182 # 2019, from UT +08 to UT +09. The article noted that an exemption 1183 # would be made for people aged 61 and over, who "can apply in writing 1184 # to have the extra hour of sunshine removed from their area." See: 1185 # Daylight saving coming to WA in 2019. Guardian Express. 2018-04-01. 1186 # https://www.communitynews.com.au/guardian-express/news/exclusive-daylight-savings-coming-wa-summer-2018/ 1187 1188 # Queensland 1189 1190 # From Paul Eggert (2018-02-26): 1191 # I lack access to the following source for Queensland DST: 1192 # Pearce C. History of daylight saving time in Queensland. 1193 # Queensland Hist J. 2017 Aug;23(6):389-403 1194 # https://search.informit.com.au/documentSummary;dn=994682348436426;res=IELHSS 1195 1196 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1197 # # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] 1198 # # [ Dec 1990 ] 1199 # ... 1200 # Zone Australia/Queensland 10:00 AQ %sST 1201 # ... 1202 # Rule AQ 1971 only - Oct lastSun 2:00 1:00 D 1203 # Rule AQ 1972 only - Feb lastSun 3:00 0 E 1204 # Rule AQ 1989 max - Oct lastSun 2:00 1:00 D 1205 # Rule AQ 1990 max - Mar Sun>=1 3:00 0 E 1206 1207 # From Bradley White (1989-12-24): 1208 # "Australia/Queensland" now observes daylight time (i.e. from 1209 # October 1989). 1210 1211 # From Bradley White (1991-03-04): 1212 # A recent excerpt from an Australian newspaper... 1213 # ...Queensland...[has] agreed to end daylight saving 1214 # at 3am tomorrow (March 3)... 1215 1216 # From John Mackin (1991-03-06): 1217 # I can certainly confirm for my part that Daylight Saving in NSW did in fact 1218 # end on Sunday, 3 March. I don't know at what hour, though. (It surprised 1219 # me.) 1220 1221 # From Bradley White (1992-03-08): 1222 # ...there was recently a referendum in Queensland which resulted 1223 # in the experimental daylight saving system being abandoned. So, ... 1224 # ... 1225 # Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D 1226 # Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S 1227 # ... 1228 1229 # From Arthur David Olson (1992-03-08): 1230 # The chosen rules the union of the 1971/1972 change and the 1989-1992 changes. 1231 1232 # From Christopher Hunt (2006-11-21), after an advance warning 1233 # from Jesper Nørgaard Welen (2006-11-01): 1234 # WA are trialing DST for three years. 1235 # http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf 1236 1237 # From Rives McDow (2002-04-09): 1238 # The most interesting region I have found consists of three towns on the 1239 # southern coast.... South Australia observes daylight saving time; Western 1240 # Australia does not. The two states are one and a half hours apart. The 1241 # residents decided to forget about this nonsense of changing the clock so 1242 # much and set the local time 20 hours and 45 minutes from the 1243 # international date line, or right in the middle of the time of South 1244 # Australia and Western Australia.... 1245 # 1246 # From Paul Eggert (2002-04-09): 1247 # This is confirmed by the section entitled 1248 # "What's the deal with time zones???" in 1249 # http://www.earthsci.unimelb.edu.au/~awatkins/null.html 1250 # 1251 # From Alex Livingston (2006-12-07): 1252 # ... it was just on four years ago that I drove along the Eyre Highway, 1253 # which passes through eastern Western Australia close to the southern 1254 # coast of the continent. 1255 # 1256 # I paid particular attention to the time kept there. There can be no 1257 # dispute that UTC+08:45 was considered "the time" from the border 1258 # village just inside the border with South Australia to as far west 1259 # as just east of Caiguna. There can also be no dispute that Eucla is 1260 # the largest population centre in this zone.... 1261 # 1262 # Now that Western Australia is observing daylight saving, the 1263 # question arose whether this part of the state would follow suit. I 1264 # just called the border village and confirmed that indeed they have, 1265 # meaning that they are now observing UTC+09:45. 1266 # 1267 # (2006-12-09): 1268 # I personally doubt that either experimentation with daylight saving 1269 # in WA or its introduction in SA had anything to do with the genesis 1270 # of this time zone. My hunch is that it's been around since well 1271 # before 1975. I remember seeing it noted on road maps decades ago. 1272 1273 # From Paul Eggert (2006-12-15): 1274 # For lack of better info, assume the tradition dates back to the 1275 # introduction of standard time in 1895. 1276 1277 1278 # southeast Australia 1279 # 1280 # From Paul Eggert (2007-07-23): 1281 # Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT 1282 # end DST the first Sunday in April and start DST the first Sunday in October. 1283 # http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html 1284 1285 1286 # South Australia 1287 1288 # From Bradley White (1991-03-04): 1289 # A recent excerpt from an Australian newspaper... 1290 # ...South Australia...[has] agreed to end daylight saving 1291 # at 3am tomorrow (March 3)... 1292 1293 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1294 # # The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ] 1295 # # [ Nov 1990 ] 1296 # ... 1297 # Zone Australia/South 9:30 AS %sST 1298 # ... 1299 # Rule AS 1971 max - Oct lastSun 2:00 1:00 D 1300 # Rule AS 1972 1985 - Mar Sun>=1 3:00 0 C 1301 # Rule AS 1986 1990 - Mar Sun>=15 3:00 0 C 1302 # Rule AS 1991 max - Mar Sun>=1 3:00 0 C 1303 1304 # From Bradley White (1992-03-11): 1305 # Recent correspondence with a friend in Adelaide 1306 # contained the following exchange: "Due to the Adelaide Festival, 1307 # South Australia delays setting back our clocks for a few weeks." 1308 1309 # From Robert Elz (1992-03-13): 1310 # I heard that apparently (or at least, it appears that) 1311 # South Aus will have an extra 3 weeks daylight saving every even 1312 # numbered year (from 1990). That's when the Adelaide Festival 1313 # is on... 1314 1315 # From Robert Elz (1992-03-16, 00:57:07 +1000): 1316 # DST didn't end in Adelaide today (yesterday).... 1317 # But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever... 1318 # (it's just as likely to be "the Sunday we pick for this year"...). 1319 1320 # From Bradley White (1994-04-11): 1321 # If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March, 1322 # 1994 was at +0930 as John Connolly's customer seems to assert, then I can 1323 # only conclude that the actual rule is more complicated.... 1324 1325 # From John Warburton (1994-10-07): 1326 # The new Daylight Savings dates for South Australia ... 1327 # was gazetted in the Government Hansard on Sep 26 1994.... 1328 # start on last Sunday in October and end in last sunday in March. 1329 1330 # From Paul Eggert (2007-07-23): 1331 # See "southeast Australia" above for 2008 and later. 1332 1333 # Tasmania 1334 1335 # The rules for 1967 through 1991 were reported by George Shepherd 1336 # via Simon Woodhead via Robert Elz (1991-03-06): 1337 # # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ] 1338 # # [ Nov 1990 ] 1339 1340 # From Bill Hart via Guy Harris (1991-10-10): 1341 # Oh yes, the new daylight savings rules are uniquely tasmanian, we have 1342 # 6 weeks a year now when we are out of sync with the rest of Australia 1343 # (but nothing new about that). 1344 1345 # From Alex Livingston (1999-10-04): 1346 # I heard on the ABC (Australian Broadcasting Corporation) radio news on the 1347 # (long) weekend that Tasmania, which usually goes its own way in this regard, 1348 # has decided to join with most of NSW, the ACT, and most of Victoria 1349 # (Australia) and start daylight saving on the last Sunday in August in 2000 1350 # instead of the first Sunday in October. 1351 1352 # Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules: 1353 # http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300 1354 1355 # From Paul Eggert (2007-07-23): 1356 # See "southeast Australia" above for 2008 and later. 1357 1358 # Victoria 1359 1360 # The rules for 1971 through 1991 were reported by George Shepherd 1361 # via Simon Woodhead via Robert Elz (1991-03-06): 1362 # # The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ] 1363 # # [ Nov 1990 ] 1364 1365 # From Scott Harrington (2001-08-29): 1366 # On KQED's "City Arts and Lectures" program last night I heard an 1367 # interesting story about daylight savings time. Dr. John Heilbron was 1368 # discussing his book "The Sun in the Church: Cathedrals as Solar 1369 # Observatories"[1], and in particular the Shrine of Remembrance[2] located 1370 # in Melbourne, Australia. 1371 # 1372 # Apparently the shrine's main purpose is a beam of sunlight which 1373 # illuminates a special spot on the floor at the 11th hour of the 11th day 1374 # of the 11th month (Remembrance Day) every year in memory of Australia's 1375 # fallen WWI soldiers. And if you go there on Nov. 11, at 11am local time, 1376 # you will indeed see the sunbeam illuminate the special spot at the 1377 # expected time. 1378 # 1379 # However, that is only because of some special mirror contraption that had 1380 # to be employed, since due to daylight savings time, the true solar time of 1381 # the remembrance moment occurs one hour later (or earlier?). Perhaps 1382 # someone with more information on this jury-rig can tell us more. 1383 # 1384 # [1] http://www.hup.harvard.edu/catalog/HEISUN.html 1385 # [2] http://www.shrine.org.au 1386 1387 # From Paul Eggert (2007-07-23): 1388 # See "southeast Australia" above for 2008 and later. 1389 1390 # New South Wales 1391 1392 # From Arthur David Olson: 1393 # New South Wales and subjurisdictions have their own ideas of a fun time. 1394 # Based on law library research by John Mackin, 1395 # who notes: 1396 # In Australia, time is not legislated federally, but rather by the 1397 # individual states. Thus, while such terms as "Eastern Standard Time" 1398 # [I mean, of course, Australian EST, not any other kind] are in common 1399 # use, _they have NO REAL MEANING_, as they are not defined in the 1400 # legislation. This is very important to understand. 1401 # I have researched New South Wales time only... 1402 1403 # From Eric Ulevik (1999-05-26): 1404 # DST will start in NSW on the last Sunday of August, rather than the usual 1405 # October in 2000. See: Matthew Moore, 1406 # Two months more daylight saving, Sydney Morning Herald (1999-05-26). 1407 # http://www.smh.com.au/news/9905/26/pageone/pageone4.html 1408 1409 # From Paul Eggert (1999-09-27): 1410 # See the following official NSW source: 1411 # Daylight Saving in New South Wales. 1412 # http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ 1413 # 1414 # Narrabri Shire (NSW) council has announced it will ignore the extension of 1415 # daylight saving next year. See: 1416 # Narrabri Council to ignore daylight saving 1417 # http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm 1418 # (1999-07-22). For now, we'll wait to see if this really happens. 1419 # 1420 # Victoria will follow NSW. See: 1421 # Vic to extend daylight saving (1999-07-28) 1422 # http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm 1423 # 1424 # However, South Australia rejected the DST request. See: 1425 # South Australia rejects Olympics daylight savings request (1999-07-19) 1426 # http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm 1427 # 1428 # Queensland also will not observe DST for the Olympics. See: 1429 # Qld says no to daylight savings for Olympics 1430 # http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm 1431 # (1999-06-01), which quotes Queensland Premier Peter Beattie as saying 1432 # "Look you've got to remember in my family when this came up last time 1433 # I voted for it, my wife voted against it and she said to me it's all very 1434 # well for you, you don't have to worry about getting the children out of 1435 # bed, getting them to school, getting them to sleep at night. 1436 # I've been through all this argument domestically...my wife rules." 1437 # 1438 # Broken Hill will stick with South Australian time in 2000. See: 1439 # Broken Hill to be behind the times (1999-07-21) 1440 # http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm 1441 1442 # IATA SSIM (1998-09) says that the spring 2000 change for Australian 1443 # Capital Territory, New South Wales except Lord Howe Island and Broken 1444 # Hill, and Victoria will be August 27, presumably due to the Sydney Olympics. 1445 1446 # From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29: 1447 # The Queensland Premier Peter Beattie is encouraging northern NSW 1448 # towns to use Queensland time. 1449 1450 # From Paul Eggert (2007-07-23): 1451 # See "southeast Australia" above for 2008 and later. 1452 1453 # Yancowinna 1454 1455 # From John Mackin (1989-01-04): 1456 # 'Broken Hill' means the County of Yancowinna. 1457 1458 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1459 # # YANCOWINNA.. [ Confirmation courtesy of Broken Hill Postmaster ] 1460 # # [ Dec 1990 ] 1461 # ... 1462 # # Yancowinna uses Central Standard Time, despite [its] location on the 1463 # # New South Wales side of the S.A. border. Most business and social dealings 1464 # # are with CST zones, therefore CST is legislated by local government 1465 # # although the switch to Summer Time occurs in line with N.S.W. There have 1466 # # been years when this did not apply, but the historical data is not 1467 # # presently available. 1468 # Zone Australia/Yancowinna 9:30 AY %sST 1469 # ... 1470 # Rule AY 1971 1985 - Oct lastSun 2:00 1:00 D 1471 # Rule AY 1972 only - Feb lastSun 3:00 0 C 1472 # [followed by other Rules] 1473 1474 # Lord Howe Island 1475 1476 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1477 # LHI... [ Courtesy of Pauline Van Winsen ] 1478 # [ Dec 1990 ] 1479 # Lord Howe Island is located off the New South Wales coast, and is half an 1480 # hour ahead of NSW time. 1481 1482 # From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27): 1483 # Lord Howe Island summer time in 2000/2001 will commence on the same 1484 # date as the rest of NSW (i.e. 2000-08-27). For your information the 1485 # Lord Howe Island Board (controlling authority for the Island) is 1486 # seeking the community's views on various options for summer time 1487 # arrangements on the Island, e.g. advance clocks by 1 full hour 1488 # instead of only 30 minutes. [Dependent] on the wishes of residents 1489 # the Board may approach the NSW government to change the existing 1490 # arrangements. The starting date for summer time on the Island will 1491 # however always coincide with the rest of NSW. 1492 1493 # From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25): 1494 # Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards 1495 # clocks by 30 minutes when DST finishes. Since DST was most recently 1496 # introduced in NSW, the "changeover" time on the Island has been 02:00 as 1497 # shown on clocks on LHI. I guess this means that for 30 minutes at the start 1498 # of DST, LHI is actually 1 hour ahead of the rest of NSW. 1499 1500 # From Paul Eggert (2006-03-22): 1501 # For Lord Howe dates we use Shanks & Pottenger through 1989, and 1502 # Lonergan thereafter. For times we use Lonergan. 1503 1504 # From Paul Eggert (2007-07-23): 1505 # See "southeast Australia" above for 2008 and later. 1506 1507 # From Steffen Thorsen (2009-04-28): 1508 # According to the official press release, South Australia's extended daylight 1509 # saving period will continue with the same rules as used during the 2008-2009 1510 # summer (southern hemisphere). 1511 # 1512 # From 1513 # http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf 1514 # The extended daylight saving period that South Australia has been trialling 1515 # for over the last year is now set to be ongoing. 1516 # Daylight saving will continue to start on the first Sunday in October each 1517 # year and finish on the first Sunday in April the following year. 1518 # Industrial Relations Minister, Paul Caica, says this provides South Australia 1519 # with a consistent half hour time difference with NSW, Victoria, Tasmania and 1520 # the ACT for all 52 weeks of the year... 1521 # 1522 # We have a wrap-up here: 1523 # https://www.timeanddate.com/news/time/south-australia-extends-dst.html 1524 ############################################################################### 1525 1526 # New Zealand 1527 1528 # From Mark Davies (1990-10-03): 1529 # the 1989/90 year was a trial of an extended "daylight saving" period. 1530 # This trial was deemed successful and the extended period adopted for 1531 # subsequent years (with the addition of a further week at the start). 1532 # source - phone call to Ministry of Internal Affairs Head Office. 1533 1534 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1535 # # The Country of New Zealand (Australia's east island -) Gee they hate that! 1536 # # or is Australia the west island of N.Z. 1537 # # [ courtesy of Geoff Tribble.. Auckland N.Z. ] 1538 # # [ Nov 1990 ] 1539 # ... 1540 # Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D 1541 # Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D 1542 # Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S 1543 # Rule NZ 1990 max - Mar lastSun 3:00 0 S 1544 # ... 1545 # Zone NZ 12:00 NZ NZ%sT # New Zealand 1546 # Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island 1547 1548 # From Arthur David Olson (1992-03-08): 1549 # The chosen rules use the Davies October 8 values for the start of DST in 1989 1550 # rather than the October 1 value. 1551 1552 # From Paul Eggert (1995-12-19); 1553 # Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ. 1554 # Robert Uzgalis writes that the New Zealand Daylight 1555 # Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard 1556 # time on both the first Sunday in October and the third Sunday in March. 1557 # As with Australia, we'll assume the tradition is 2:00s, not 2:00. 1558 # 1559 # From Paul Eggert (2006-03-22): 1560 # The Department of Internal Affairs (DIA) maintains a brief history, 1561 # as does Carol Squires; see tz-link.html for the full references. 1562 # Use these sources in preference to Shanks & Pottenger. 1563 # 1564 # For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with 1565 # transitions at 2:45 local standard time; this confirms that Chatham 1566 # is always exactly 45 minutes ahead of Auckland. 1567 1568 # From Colin Sharples (2007-04-30): 1569 # DST will now start on the last Sunday in September, and end on the 1570 # first Sunday in April. The changes take effect this year, meaning 1571 # that DST will begin on 2007-09-30 2008-04-06. 1572 # http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended 1573 1574 # From Paul Eggert (2014-07-14): 1575 # Chatham Island time was formally standardized on 1957-01-01 by 1576 # New Zealand's Standard Time Amendment Act 1956 (1956-10-26). 1577 # https://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf 1578 # According to Google Books snippet view, a speaker in the New Zealand 1579 # parliamentary debates in 1956 said "Clause 78 makes provision for standard 1580 # time in the Chatham Islands. The time there is 45 minutes in advance of New 1581 # Zealand time. I understand that is the time they keep locally, anyhow." 1582 # For now, assume this practice goes back to the introduction of standard time 1583 # in New Zealand, as this would make Chatham Islands time almost exactly match 1584 # LMT back when New Zealand was at UT +11:30; also, assume Chatham Islands did 1585 # not observe New Zealand's prewar DST. 1586 1587 ############################################################################### 1588 1589 1590 # Fiji 1591 1592 # Howse writes (p 153) that in 1879 the British governor of Fiji 1593 # enacted an ordinance standardizing the islands on Antipodean Time 1594 # instead of the American system (which was one day behind). 1595 1596 # From Rives McDow (1998-10-08): 1597 # Fiji will introduce DST effective 0200 local time, 1998-11-01 1598 # until 0300 local time 1999-02-28. Each year the DST period will 1599 # be from the first Sunday in November until the last Sunday in February. 1600 1601 # From Paul Eggert (2000-01-08): 1602 # IATA SSIM (1999-09) says DST ends 0100 local time. Go with McDow. 1603 1604 # From the BBC World Service in 1605 # http://news.bbc.co.uk/2/hi/asia-pacific/205226.stm (1998-10-31 16:03 UTC): 1606 # The Fijian government says the main reasons for the time change is to 1607 # improve productivity and reduce road accidents.... [T]he move is also 1608 # intended to boost Fiji's ability to attract tourists to witness the dawning 1609 # of the new millennium. 1610 1611 # http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13) 1612 # reports that Fiji has discontinued DST. 1613 1614 1615 # Kiribati 1616 1617 # From Paul Eggert (1996-01-22): 1618 # Today's _Wall Street Journal_ (page 1) reports that Kiribati 1619 # "declared it the same day [throughout] the country as of Jan. 1, 1995" 1620 # as part of the competition to be first into the 21st century. 1621 1622 # From Kerry Shetline (2018-02-03): 1623 # December 31 was the day that was skipped, so that the transition 1624 # would be from Friday December 30, 1994 to Sunday January 1, 1995. 1625 # From Paul Eggert (2018-02-04): 1626 # One source for this is page 202 of: Bartky IR. One Time Fits All: 1627 # The Campaigns for Global Uniformity (2007). 1628 1629 # Kwajalein 1630 1631 # From an AP article (1993-08-22): 1632 # "The nearly 3,000 Americans living on this remote Pacific atoll have a good 1633 # excuse for not remembering Saturday night: there wasn't one. Residents were 1634 # going to bed Friday night and waking up Sunday morning because at midnight 1635 # -- 8 A.M. Eastern daylight time on Saturday -- Kwajalein was jumping from 1636 # one side of the international date line to the other." 1637 # "In Marshall Islands, Friday is followed by Sunday", NY Times. 1993-08-22. 1638 # https://www.nytimes.com/1993/08/22/world/in-marshall-islands-friday-is-followed-by-sunday.html 1639 1640 # From Phake Nick (2018-10-27): 1641 # <https://wiki.suikawiki.org/n/南洋群島の標準時> ... pointed out that 1642 # currently tzdata say Pacific/Kwajalein switched from GMT+11 to GMT-12 in 1643 # 1969 October without explanation, however an 1993 article from NYT say it 1644 # synchorized its day with US mainland about 40 years ago and thus the switch 1645 # should occur at around 1950s instead. 1646 # 1647 # From Paul Eggert (2018-11-18): 1648 # The NYT (actually, AP) article is vague and possibly wrong about this. 1649 # The article says the earlier switch was "40 years ago when the United States 1650 # Army established a missile test range here". However, the Kwajalein Test 1651 # Center was established on 1960-10-01 and was run by the US Navy. It was 1652 # transferred to the US Army on 1964-07-01. See "Seize the High Ground" 1653 # <https://history.army.mil/html/books/070/70-88-1/cmhPub_70-88-1.pdf>. 1654 # Given that Shanks was right on the money about the 1993 change, I'm inclined 1655 # to take Shanks's word for the 1969 change unless we find better evidence. 1656 1657 1658 # N Mariana Is, Guam 1659 1660 # From Phake Nick (2018-10-27): 1661 # Guam Island was briefly annexed by Japan during ... year 1941-1944 ... 1662 # however there are no detailed information about what time it use during that 1663 # period. It would probably be reasonable to assume Guam use GMT+9 during 1664 # that period of time like the surrounding area. 1665 1666 # From Paul Eggert (2018-11-18): 1667 # Howse writes (p 153) "The Spaniards, on the other hand, reached the 1668 # Philippines and the Ladrones from America," and implies that the Ladrones 1669 # (now called the Marianas) kept American date for quite some time. 1670 # For now, we assume the Ladrones switched at the same time as the Philippines; 1671 # see Asia/Manila. 1672 # 1673 # Use 1941-12-10 and 1944-07-31 for Guam WWII transitions, as the rough start 1674 # and end of Japanese control of Agana. We don't know whether the Northern 1675 # Marianas followed Guam's DST rules from 1959 through 1977; for now, assume 1676 # they did as that avoids the need for a separate zone due to our 1970 cutoff. 1677 # 1678 # US Public Law 106-564 (2000-12-23) made UT +10 the official standard time, 1679 # under the name "Chamorro Standard Time". There is no official abbreviation, 1680 # but Congressman Robert A. Underwood, author of the bill that became law, 1681 # wrote in a press release (2000-12-27) that he will seek the use of "ChST". 1682 1683 # See also the commentary for Micronesia. 1684 1685 1686 # Marshall Is 1687 # See the commentary for Micronesia. 1688 1689 1690 # Micronesia (and nearby) 1691 1692 # From Paul Eggert (2018-11-18): 1693 # Like the Ladrones (see Guam commentary), assume the Spanish East Indies 1694 # kept American time until the Philippines switched at the end of 1844. 1695 1696 # Alan Eugene Davis writes (1996-03-16), 1697 # "I am certain, having lived there for the past decade, that 'Truk' 1698 # (now properly known as Chuuk) ... is in the time zone GMT+10." 1699 # 1700 # Shanks & Pottenger write that Truk switched from UT +10 to +11 1701 # on 1978-10-01; ignore this for now. 1702 1703 # From Paul Eggert (1999-10-29): 1704 # The Federated States of Micronesia Visitors Board writes in 1705 # The Federated States of Micronesia - Visitor Information (1999-01-26) 1706 # http://www.fsmgov.org/info/clocks.html 1707 # that Truk and Yap are UT +10, and Ponape and Kosrae are +11. 1708 # We don't know when Kosrae switched from +12; assume January 1 for now. 1709 1710 # From Phake Nick (2018-10-27): 1711 # 1712 # From a Japanese wiki site https://wiki.suikawiki.org/n/南洋群島の標準時 1713 # ... 1714 # For "Southern Islands" (modern region of Mariana + Palau + Federation of 1715 # Micronesia + Marshall Islands): 1716 # 1717 # A 1906 Japanese magazine shown the Caroline Islands and Mariana Islands 1718 # who was occupied by Germany at the time as GMT+10, together with the like 1719 # of German New Guinea. However there is a marking saying it have not been 1720 # implemented (yet). No further information after that were found. 1721 # 1722 # Japan invaded those islands in 1914, and records shows that they were 1723 # instructed to use JST at the time. 1724 # 1725 # 1915 January telecommunication record on the Jaluit Atoll shows they use 1726 # the meridian of 170E as standard time (GMT+11:20), which is similar to the 1727 # longitude of the atoll. 1728 # 1915 February record say the 170E standard time is to be used until 1729 # February 9 noon, and after February 9 noon they are to use JST. 1730 # However these are time used within the Japanese Military at the time and 1731 # probably does not reflect the time used by local resident at the time (that 1732 # is if they keep their own time back then) 1733 # 1734 # In January 1919 the occupying force issued a command that split the area 1735 # into three different timezone with meridian of 135E, 150E, 165E (JST+0, +1, 1736 # +2), and the command was to become effective from February 1 of the same 1737 # year. Despite the target of the command is still only for the occupying 1738 # force itself, further publication have described the time as the standard 1739 # time for the occupied area and thus it can probably be seen as such. 1740 # * Area that use meridian of 135E: Palau and Yap civil administration area 1741 # (Southern Islands Western Standard Time) 1742 # * Area that use meridian of 150E: Truk (Chuuk) and Saipan civil 1743 # administration area (Southern Islands Central Standard Time) 1744 # * Area that use meridian of 165E: Ponape (Pohnpei) and Jaluit civil 1745 # administration area (Southern Islands Eastern Standard Time). 1746 # * In the next few years Japanese occupation of those islands have been 1747 # formalized via League of Nation Mandate (South Pacific Mandate) and formal 1748 # governance structure have been established, these district [become 1749 # subprefectures] and timezone classification have been inherited as standard 1750 # time of the area. 1751 # * Saipan subprefecture include Mariana islands (exclude Guam which was 1752 # occupied by America at the time), Palau and Yap subprefecture rule the 1753 # Western Caroline Islands with 137E longitude as border, Truk and Ponape 1754 # subprefecture rule the Eastern Caroline Islands with 154E as border, Ponape 1755 # subprefecture also rule part of Marshall Islands to the west of 164E 1756 # starting from (1918?) and Jaluit subprefecture rule the rest of the 1757 # Marshall Islands. 1758 # 1759 # And then in year 1937, an announcement was made to change the time in the 1760 # area into 2 timezones: 1761 # * Area that use meridian of 135E: area administered by Palau, Yap and 1762 # Saipan subprefecture (Southern Islands Western Standard Time) 1763 # * Area that use meridian of 150E: area administered by Truk (Chuuk), 1764 # Ponape (Pohnpei) and Jaluit subprefecture (Southern Islands Eastern 1765 # Standard Time) 1766 # 1767 # Another announcement issued in 1941 say that on April 1 that year, 1768 # standard time of the Southern Islands would be changed to use the meridian 1769 # of 135E (GMT+9), and thus abolishing timezone different within the area. 1770 # 1771 # Then Pacific theater of WWII started and Japan slowly lose control on the 1772 # island. The webpage I linked above contain no information during this 1773 # period of time.... 1774 # 1775 # After the end of WWII, in 1946 February, a document written by the 1776 # (former?) Japanese military personnel describe there are 3 hours time 1777 # different between Caroline islands time/Wake island time and the Chungking 1778 # time, which would mean the time being used there at the time was GMT+10. 1779 # 1780 # After that, the area become Trust Territories of the Pacific Islands 1781 # under American administration from year 1947. The site listed some 1782 # American/International books/maps/publications about time used in those 1783 # area during this period of time but they doesn't seems to be reliable 1784 # information so it would be the best if someone know where can more reliable 1785 # information can be found. 1786 # 1787 # 1788 # From Paul Eggert (2018-11-18): 1789 # 1790 # For the above, use vague dates like "1914" and "1945" for transitions that 1791 # plausibly exist but for which the details are not known. The information 1792 # for Wake is too sketchy to act on. 1793 # 1794 # The 1906 GMT+10 info about German-controlled islands might not have been 1795 # done, so omit it from the data for now. 1796 # 1797 # The Jaluit info governs Kwajalein. 1798 1799 1800 # Midway 1801 1802 # From Charles T O'Connor, KMTH DJ (1956), 1803 # quoted in the KTMH section of the Radio Heritage Collection 1804 # <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31): 1805 # For the past two months we've been on what is known as Daylight 1806 # Saving Time. This time has put us on air at 5am in the morning, 1807 # your time down there in New Zealand. Starting September 2, 1956 1808 # we'll again go back to Standard Time. This'll mean that we'll go to 1809 # air at 6am your time. 1810 # 1811 # From Paul Eggert (2003-03-23): 1812 # We don't know the date of that quote, but we'll guess they 1813 # started DST on June 3. Possibly DST was observed other years 1814 # in Midway, but we have no record of it. 1815 1816 # Nauru 1817 1818 # From Phake Nick (2018-10-31): 1819 # Currently, the tz database say Nauru use LMT until 1921, and then 1820 # switched to GMT+11:30 for the next two decades. 1821 # However, a number of timezone map published in America/Japan back then 1822 # showed its timezone as GMT+11 per https://wiki.suikawiki.org/n/ナウルの標準時 1823 # And it would also be nice if the 1921 transition date could be sourced. 1824 # ... 1825 # The "Nauru Standard Time Act 1978 Time Change" 1826 # http://ronlaw.gov.nr/nauru_lpms/files/gazettes/4b23a17d2030150404db7a5fa5872f52.pdf#page=3 1827 # based on "Nauru Standard Time Act 1978 Time Change" 1828 # http://www.paclii.org/nr/legis/num_act/nsta1978207/ defined that "Nauru 1829 # Alternative Time" (GMT+12) should be in effect from 1979 Feb. 1830 # 1831 # From Paul Eggert (2018-11-19): 1832 # The 1921-01-15 introduction of standard time is in Shanks; it is also in 1833 # "Standard Time Throughout the World", US National Bureau of Standards (1935), 1834 # page 3, which does not give the UT offset. In response to a comment by 1835 # Phake Nick I set the Nauru time of occupation by Japan to 1836 # 1942-08-29/1945-09-08 by using dates from: 1837 # https://en.wikipedia.org/wiki/Japanese_occupation_of_Nauru 1838 1839 # Norfolk 1840 1841 # From Alexander Krivenyshev (2015-09-23): 1842 # Norfolk Island will change ... from +1130 to +1100: 1843 # https://www.comlaw.gov.au/Details/F2015L01483/Explanatory%20Statement/Text 1844 # ... at 12.30 am (by legal time in New South Wales) on 4 October 2015. 1845 # http://www.norfolkisland.gov.nf/nia/MediaRelease/Media%20Release%20Norfolk%20Island%20Standard%20Time%20Change.pdf 1846 1847 # From Paul Eggert (2015-09-23): 1848 # Transitions before 2015 are from timeanddate.com, which consulted 1849 # the Norfolk Island Museum and the Australian Bureau of Meteorology's 1850 # Norfolk Island station, and found no record of Norfolk observing DST 1851 # other than in 1974/5. See: 1852 # https://www.timeanddate.com/time/australia/norfolk-island.html 1853 1854 # Palau 1855 # See commentary for Micronesia. 1856 1857 # Pitcairn 1858 1859 # From Rives McDow (1999-11-08): 1860 # A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998 1861 # with regard to Pitcairn Standard Time. The Proclamation is as follows. 1862 # 1863 # The local time for general purposes in the Islands shall be 1864 # Co-ordinated Universal time minus 8 hours and shall be known 1865 # as Pitcairn Standard Time. 1866 # 1867 # ... I have also seen Pitcairn listed as UTC minus 9 hours in several 1868 # references, and can only assume that this was an error in interpretation 1869 # somehow in light of this proclamation. 1870 1871 # From Rives McDow (1999-11-09): 1872 # The Proclamation regarding Pitcairn time came into effect on 27 April 1998 1873 # ... at midnight. 1874 1875 # From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave: 1876 # Betty Christian told me yesterday that their local time is the same as 1877 # Pacific Standard Time. They used to be ½ hour different from us here in 1878 # Sacramento but it was changed a couple of years ago. 1879 1880 1881 # (Western) Samoa and American Samoa 1882 1883 # Howse writes (p 153) that after the 1879 standardization on Antipodean 1884 # time by the British governor of Fiji, the King of Samoa decided to change 1885 # "the date in his kingdom from the Antipodean to the American system, 1886 # ordaining - by a masterpiece of diplomatic flattery - that 1887 # the Fourth of July should be celebrated twice in that year." 1888 # This happened in 1892, according to the Evening News (Sydney) of 1892-07-20. 1889 # https://www.staff.science.uu.nl/~gent0113/idl/idl.htm 1890 1891 # Although Shanks & Pottenger says they both switched to UT -11:30 1892 # in 1911, and to -11 in 1950. many earlier sources give -11 1893 # for American Samoa, e.g., the US National Bureau of Standards 1894 # circular "Standard Time Throughout the World", 1932. 1895 # Assume American Samoa switched to -11 in 1911, not 1950, 1896 # and that after 1950 they agreed until (western) Samoa skipped a 1897 # day in 2011. Assume also that the Samoas follow the US and New 1898 # Zealand's "ST"/"DT" style of daylight-saving abbreviations. 1899 1900 1901 # Tonga 1902 1903 # From Paul Eggert (1996-01-22): 1904 # Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting 1905 # to sneak ahead of [New Zealanders] by introducing daylight-saving time." 1906 # Since Kiribati has moved the Date Line it's not clear what Tonga will do. 1907 1908 # Don Mundell writes in the 1997-02-20 Tonga Chronicle 1909 # How Tonga became 'The Land where Time Begins': 1910 # http://www.tongatapu.net.to/tonga/homeland/timebegins.htm 1911 # 1912 # Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST 1913 # 12 hours and 20 minutes ahead of GMT. When New Zealand adjusted its 1914 # standard time in 1940s, Tonga had the choice of subtracting from its 1915 # local time to come on the same standard time as New Zealand or of 1916 # advancing its time to maintain the differential of 13° 1917 # (approximately 50 minutes ahead of New Zealand time). 1918 # 1919 # Because His Majesty King Tāufaʻāhau Tupou IV, then Crown Prince 1920 # Tungī, preferred to ensure Tonga's title as the land where time 1921 # begins, the Legislative Assembly approved the latter change. 1922 # 1923 # But some of the older, more conservative members from the outer 1924 # islands objected. "If at midnight on Dec. 31, we move ahead 40 1925 # minutes, as your Royal Highness wishes, what becomes of the 40 1926 # minutes we have lost?" 1927 # 1928 # The Crown Prince, presented an unanswerable argument: "Remember that 1929 # on the World Day of Prayer, you would be the first people on Earth 1930 # to say your prayers in the morning." 1931 1932 # From Paul Eggert (2006-03-22): 1933 # Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell. 1934 1935 # From Eric Ulevik (1999-05-03): 1936 # Tonga's director of tourism, who is also secretary of the National Millennium 1937 # Committee, has a plan to get Tonga back in front. 1938 # He has proposed a one-off move to tropical daylight saving for Tonga from 1939 # October to March, which has won approval in principle from the Tongan 1940 # Government. 1941 1942 # From Steffen Thorsen (1999-09-09): 1943 # * Tonga will introduce DST in November 1944 # 1945 # I was given this link by John Letts: 1946 # http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm 1947 # 1948 # I have not been able to find exact dates for the transition in November 1949 # yet. By reading this article it seems like Fiji will be 14 hours ahead 1950 # of UTC as well, but as far as I know Fiji will only be 13 hours ahead 1951 # (12 + 1 hour DST). 1952 1953 # From Arthur David Olson (1999-09-20): 1954 # According to <http://www.tongaonline.com/news/sept1799.html>: 1955 # "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000 1956 # and annually thereafter from the first Saturday in October through the 1957 # third Saturday of April. Under the system approved by Privy Council on 1958 # Sept. 10, clocks must be turned ahead one hour on the opening day and 1959 # set back an hour on the closing date." 1960 # Alas, no indication of the time of day. 1961 1962 # From Rives McDow (1999-10-06): 1963 # Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am. 1964 # Daylight Saving ends on April 16 at 0300am which is Sunday morning. 1965 1966 # From Steffen Thorsen (2000-10-31): 1967 # Back in March I found a notice on the website http://www.tongaonline.com 1968 # that Tonga changed back to standard time one month early, on March 19 1969 # instead of the original reported date April 16. Unfortunately, the article 1970 # is no longer available on the site, and I did not make a copy of the 1971 # text, and I have forgotten to report it here. 1972 # (Original URL was <http://www.tongaonline.com/news/march162000.htm>) 1973 1974 # From Rives McDow (2000-12-01): 1975 # Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27. 1976 1977 # From Sione Moala-Mafi (2001-09-20) via Rives McDow: 1978 # At 2:00am on the first Sunday of November, the standard time in the Kingdom 1979 # shall be moved forward by one hour to 3:00am. At 2:00am on the last Sunday 1980 # of January the standard time in the Kingdom shall be moved backward by one 1981 # hour to 1:00am. 1982 1983 # From Pulu ʻAnau (2002-11-05): 1984 # The law was for 3 years, supposedly to get renewed. It wasn't. 1985 1986 # From Pulu ʻAnau (2016-10-27): 1987 # http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017 1988 # Cannot find anyone who knows the rules, has seen the duration or has seen 1989 # the cabinet decision, but it appears we are following Fiji's rule set. 1990 # 1991 # From Tim Parenti (2016-10-26): 1992 # Assume Tonga will observe DST from the first Sunday in November at 02:00 1993 # through the third Sunday in January at 03:00, like Fiji, for now. 1994 1995 # From David Wade (2017-10-18): 1996 # In August government was disolved by the King. The current prime minister 1997 # continued in office in care taker mode. It is easy to see that few 1998 # decisions will be made until elections 16th November. 1999 # 2000 # From Paul Eggert (2017-10-18): 2001 # For now, guess that DST is discontinued. That's what the IATA is guessing. 2002 2003 2004 # Wake 2005 2006 # From Vernice Anderson, Personal Secretary to Philip Jessup, 2007 # US Ambassador At Large (oral history interview, 1971-02-02): 2008 # 2009 # Saturday, the 14th [of October, 1950] - ... The time was all the 2010 # more confusing at that point, because we had crossed the 2011 # International Date Line, thus getting two Sundays. Furthermore, we 2012 # discovered that Wake Island had two hours of daylight saving time 2013 # making calculation of time in Washington difficult if not almost 2014 # impossible. 2015 # 2016 # https://www.trumanlibrary.org/oralhist/andrsonv.htm 2017 2018 # From Paul Eggert (2003-03-23): 2019 # We have no other report of DST in Wake Island, so omit this info for now. 2020 2021 # See also the commentary for Micronesia. 2022 2023 2024 ############################################################################### 2025 2026 # The International Date Line 2027 2028 # From Gwillim Law (2000-01-03): 2029 # 2030 # The International Date Line is not defined by any international standard, 2031 # convention, or treaty. Mapmakers are free to draw it as they please. 2032 # Reputable mapmakers will simply ensure that every point of land appears on 2033 # the correct side of the IDL, according to the date legally observed there. 2034 # 2035 # When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and 2036 # Line Islands to the west side of the IDL (or, if you prefer, moving the IDL 2037 # to the east side of the Phoenix and Line Islands), I suppose that most 2038 # mapmakers redrew the IDL following the boundary of Kiribati. Even that line 2039 # has a rather arbitrary nature. The straight-line boundaries between Pacific 2040 # island nations that are shown on many maps are based on an international 2041 # convention, but are not legally binding national borders.... The date is 2042 # governed by the IDL; therefore, even on the high seas, there may be some 2043 # places as late as fourteen hours later than UTC. And, since the IDL is not 2044 # an international standard, there are some places on the high seas where the 2045 # correct date is ambiguous. 2046 2047 # From Wikipedia <https://en.wikipedia.org/wiki/Time_zone> (2005-08-31): 2048 # Before 1920, all ships kept local apparent time on the high seas by setting 2049 # their clocks at night or at the morning sight so that, given the ship's 2050 # speed and direction, it would be 12 o'clock when the Sun crossed the ship's 2051 # meridian (12 o'clock = local apparent noon). During 1917, at the 2052 # Anglo-French Conference on Time-keeping at Sea, it was recommended that all 2053 # ships, both military and civilian, should adopt hourly standard time zones 2054 # on the high seas. Whenever a ship was within the territorial waters of any 2055 # nation it would use that nation's standard time. The captain was permitted 2056 # to change his ship's clocks at a time of his choice following his ship's 2057 # entry into another zone time - he often chose midnight. These zones were 2058 # adopted by all major fleets between 1920 and 1925 but not by many 2059 # independent merchant ships until World War II. 2060 2061 # From Paul Eggert, using references suggested by Oscar van Vlijmen 2062 # (2005-03-20): 2063 # 2064 # The American Practical Navigator (2002) 2065 # http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187 2066 # talks only about the 180-degree meridian with respect to ships in 2067 # international waters; it ignores the international date line.