1 # 2 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 # 4 # This code is free software; you can redistribute it and/or modify it 5 # under the terms of the GNU General Public License version 2 only, as 6 # published by the Free Software Foundation. Oracle designates this 7 # particular file as subject to the "Classpath" exception as provided 8 # by Oracle in the LICENSE file that accompanied this code. 9 # 10 # This code is distributed in the hope that it will be useful, but WITHOUT 11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 # version 2 for more details (a copy is included in the LICENSE file that 14 # accompanied this code). 15 # 16 # You should have received a copy of the GNU General Public License version 17 # 2 along with this work; if not, write to the Free Software Foundation, 18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 # 20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 # or visit www.oracle.com if you need additional information or have any 22 # questions. 23 # 24 # <pre> 25 # This file is in the public domain, so clarified as of 26 # 2009-05-17 by Arthur David Olson. 27 28 # This data is by no means authoritative; if you think you know better, 29 # go ahead and edit the file (and please send any changes to 30 # tz@iana.org for general use in the future). 31 32 # From Paul Eggert (2006-03-22): 33 # A good source for time zone historical data outside the U.S. is 34 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 35 # San Diego: ACS Publications, Inc. (2003). 36 # 37 # For data circa 1899, a common source is: 38 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 39 # <http://www.jstor.org/stable/1774359>. 40 # 41 # Gwillim Law writes that a good source 42 # for recent time zone data is the International Air Transport 43 # Association's Standard Schedules Information Manual (IATA SSIM), 44 # published semiannually. Law sent in several helpful summaries 45 # of the IATA's data after 1990. 46 # 47 # Except where otherwise noted, Shanks & Pottenger is the source for 48 # entries through 1990, and IATA SSIM is the source for entries afterwards. 49 # 50 # Earlier editions of these tables used the North American style (e.g. ARST and 51 # ARDT for Argentine Standard and Daylight Time), but the following quote 52 # suggests that it's better to use European style (e.g. ART and ARST). 53 # I suggest the use of _Summer time_ instead of the more cumbersome 54 # _daylight-saving time_. _Summer time_ seems to be in general use 55 # in Europe and South America. 56 # -- E O Cutler, _New York Times_ (1937-02-14), quoted in 57 # H L Mencken, _The American Language: Supplement I_ (1960), p 466 58 # 59 # Earlier editions of these tables also used the North American style 60 # for time zones in Brazil, but this was incorrect, as Brazilians say 61 # "summer time". Reinaldo Goulart, a Sao Paulo businessman active in 62 # the railroad sector, writes (1999-07-06): 63 # The subject of time zones is currently a matter of discussion/debate in 64 # Brazil. Let's say that "the Brasilia time" is considered the 65 # "official time" because Brasilia is the capital city. 66 # The other three time zones are called "Brasilia time "minus one" or 67 # "plus one" or "plus two". As far as I know there is no such 68 # name/designation as "Eastern Time" or "Central Time". 69 # So I invented the following (English-language) abbreviations for now. 70 # Corrections are welcome! 71 # std dst 72 # -2:00 FNT FNST Fernando de Noronha 73 # -3:00 BRT BRST Brasilia 74 # -4:00 AMT AMST Amazon 75 # -5:00 ACT ACST Acre 76 77 ############################################################################### 78 79 ############################################################################### 80 81 # Argentina 82 83 # From Bob Devine (1988-01-28): 84 # Argentina: first Sunday in October to first Sunday in April since 1976. 85 # Double Summer time from 1969 to 1974. Switches at midnight. 86 87 # From U. S. Naval Observatory (1988-01-199): 88 # ARGENTINA 3 H BEHIND UTC 89 90 # From Hernan G. Otero (1995-06-26): 91 # I am sending modifications to the Argentine time zone table... 92 # AR was chosen because they are the ISO letters that represent Argentina. 93 94 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 95 Rule Arg 1930 only - Dec 1 0:00 1:00 S 96 Rule Arg 1931 only - Apr 1 0:00 0 - 97 Rule Arg 1931 only - Oct 15 0:00 1:00 S 98 Rule Arg 1932 1940 - Mar 1 0:00 0 - 99 Rule Arg 1932 1939 - Nov 1 0:00 1:00 S 100 Rule Arg 1940 only - Jul 1 0:00 1:00 S 101 Rule Arg 1941 only - Jun 15 0:00 0 - 102 Rule Arg 1941 only - Oct 15 0:00 1:00 S 103 Rule Arg 1943 only - Aug 1 0:00 0 - 104 Rule Arg 1943 only - Oct 15 0:00 1:00 S 105 Rule Arg 1946 only - Mar 1 0:00 0 - 106 Rule Arg 1946 only - Oct 1 0:00 1:00 S 107 Rule Arg 1963 only - Oct 1 0:00 0 - 108 Rule Arg 1963 only - Dec 15 0:00 1:00 S 109 Rule Arg 1964 1966 - Mar 1 0:00 0 - 110 Rule Arg 1964 1966 - Oct 15 0:00 1:00 S 111 Rule Arg 1967 only - Apr 2 0:00 0 - 112 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S 113 Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - 114 Rule Arg 1974 only - Jan 23 0:00 1:00 S 115 Rule Arg 1974 only - May 1 0:00 0 - 116 Rule Arg 1988 only - Dec 1 0:00 1:00 S 117 # 118 # From Hernan G. Otero (1995-06-26): 119 # These corrections were contributed by InterSoft Argentina S.A., 120 # obtaining the data from the: 121 # Talleres de Hidrografia Naval Argentina 122 # (Argentine Naval Hydrography Institute) 123 Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - 124 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S 125 # 126 # From Hernan G. Otero (1995-06-26): 127 # From this moment on, the law that mandated the daylight saving 128 # time corrections was derogated and no more modifications 129 # to the time zones (for daylight saving) are now made. 130 # 131 # From Rives McDow (2000-01-10): 132 # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, 133 # which did not result in the switch of a time zone, as they stayed 9 hours 134 # from the International Date Line. 135 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S 136 # From Paul Eggert (2007-12-28): 137 # DST was set to expire on March 5, not March 3, but since it was converted 138 # to standard time on March 3 it's more convenient for us to pretend that 139 # it ended on March 3. 140 Rule Arg 2000 only - Mar 3 0:00 0 - 141 # 142 # From Peter Gradelski via Steffen Thorsen (2000-03-01): 143 # We just checked with our Sao Paulo office and they say the government of 144 # Argentina decided not to become one of the countries that go on or off DST. 145 # So Buenos Aires should be -3 hours from GMT at all times. 146 # 147 # From Fabian L. Arce Jofre (2000-04-04): 148 # The law that claimed DST for Argentina was derogated by President Fernando 149 # de la Rua on March 2, 2000, because it would make people spend more energy 150 # in the winter time, rather than less. The change took effect on March 3. 151 # 152 # From Mariano Absatz (2001-06-06): 153 # one of the major newspapers here in Argentina said that the 1999 154 # Timezone Law (which never was effectively applied) will (would?) be 155 # in effect.... The article is at 156 # http://ar.clarin.com/diario/2001-06-06/e-01701.htm 157 # ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted 158 # 1999-09-17, and published 1999-09-21. The official publication is at: 159 # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF 160 # Regretfully, you have to subscribe (and pay) for the on-line version.... 161 # 162 # (2001-06-12): 163 # the timezone for Argentina will not change next Sunday. 164 # Apparently it will do so on Sunday 24th.... 165 # http://ar.clarin.com/diario/2001-06-12/s-03501.htm 166 # 167 # (2001-06-25): 168 # Last Friday (yes, the last working day before the date of the change), the 169 # Senate annulled the 1999 law that introduced the changes later postponed. 170 # http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm 171 # It remains the vote of the Deputies..., but it will be the same.... 172 # This kind of things had always been done this way in Argentina. 173 # We are still -03:00 all year round in all of the country. 174 # 175 # From Steffen Thorsen (2007-12-21): 176 # A user (Leonardo Chaim) reported that Argentina will adopt DST.... 177 # all of the country (all Zone-entries) are affected. News reports like 178 # http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate 179 # that Argentina will use DST next year as well, from October to 180 # March, although exact rules are not given. 181 # 182 # From Jesper Norgaard Welen (2007-12-26) 183 # The last hurdle of Argentina DST is over, the proposal was approved in 184 # the lower chamber too (Deputados) with a vote 192 for and 2 against. 185 # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to 186 # the original scanned proposal, where the dates and the zero hours are 187 # clear and unambiguous...This is the article about final approval: 188 # <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996"> 189 # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 190 # </a> 191 # 192 # From Paul Eggert (2007-12-22): 193 # For dates after mid-2008, the following rules are my guesses and 194 # are quite possibly wrong, but are more likely than no DST at all. 195 196 # From Alexander Krivenyshev (2008-09-05): 197 # As per message from Carlos Alberto Fonseca Arauz (Nicaragua), 198 # Argentina will start DST on Sunday October 19, 2008. 199 # 200 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html"> 201 # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html 202 # </a> 203 # OR 204 # <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)"> 205 # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) 206 # </a> 207 208 # From Rodrigo Severo (2008-10-06): 209 # Here is some info available at a Gentoo bug related to TZ on Argentina's DST: 210 # ... 211 # ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- 212 # Hi, there is a problem with timezone-data-2008e and maybe with 213 # timezone-data-2008f 214 # Argentinian law [Number] 25.155 is no longer valid. 215 # <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm"> 216 # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm 217 # </a> 218 # The new one is law [Number] 26.350 219 # <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm"> 220 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm 221 # </a> 222 # So there is no summer time in Argentina for now. 223 224 # From Mariano Absatz (2008-10-20): 225 # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina 226 # From 2008-10-19 until 2009-03-15 227 # <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01"> 228 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 229 # </a> 230 # 231 # Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009: 232 # Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz 233 # and Tierra del Fuego 234 # <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01"> 235 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 236 # </a> 237 # 238 # Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying 239 # it will not apply DST either (even when it was not included in Decree 1705/2008) 240 # <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc"> 241 # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc 242 # </a> 243 244 # From fullinet (2009-10-18): 245 # As announced in 246 # <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356"> 247 # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 248 # </a> 249 # (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") 250 # 251 # "Por el momento, el Gobierno Nacional resolvio no modificar la hora 252 # oficial, decision que estaba en estudio para su implementacion el 253 # domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio 254 # que la Argentina hoy, en estas condiciones meteorologicas, no necesita 255 # la modificacion del huso horario, ya que 2009 nos encuentra con 256 # crecimiento en la produccion y distribucion energetica." 257 258 Rule Arg 2007 only - Dec 30 0:00 1:00 S 259 Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - 260 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S 261 262 # From Mariano Absatz (2004-05-21): 263 # Today it was officially published that the Province of Mendoza is changing 264 # its timezone this winter... starting tomorrow night.... 265 # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf 266 # From Paul Eggert (2004-05-24): 267 # It's Law No. 7,210. This change is due to a public power emergency, so for 268 # now we'll assume it's for this year only. 269 # 270 # From Paul Eggert (2006-03-22): 271 # <a href="http://www.spicasc.net/horvera.html"> 272 # Hora de verano para la Republica Argentina (2003-06-08) 273 # </a> says that standard time in Argentina from 1894-10-31 274 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value 275 # over Shanks & Pottenger. 276 # 277 # From Mariano Absatz (2004-06-05): 278 # These media articles from a major newspaper mostly cover the current state: 279 # http://www.lanacion.com.ar/04/05/27/de_604825.asp 280 # http://www.lanacion.com.ar/04/05/28/de_605203.asp 281 # 282 # The following eight (8) provinces pulled clocks back to UTC-04:00 at 283 # midnight Monday May 31st. (that is, the night between 05/31 and 06/01). 284 # Apparently, all nine provinces would go back to UTC-03:00 at the same 285 # time in October 17th. 286 # 287 # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, 288 # Tierra del Fuego, Tucuman. 289 # 290 # From Mariano Absatz (2004-06-14): 291 # ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00 292 # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's 293 # annoyance with the change is much higher than the power savings obtained.... 294 # 295 # From Gwillim Law (2004-06-14): 296 # http://www.lanacion.com.ar/04/06/10/de_609078.asp ... 297 # "The time change in Tierra del Fuego was a conflicted decision from 298 # the start. The government had decreed that the measure would take 299 # effect on June 1, but a normative error forced the new time to begin 300 # three days earlier, from a Saturday to a Sunday.... 301 # Our understanding was that the change was originally scheduled to take place 302 # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other 303 # provinces). Sunday was May 30, only two days earlier. So the article 304 # contains a contradiction. I would give more credence to the Saturday/Sunday 305 # date than the "three days earlier" phrase, and conclude that Tierra del 306 # Fuego set its clocks back at 2004-05-30 00:00. 307 # 308 # From Steffen Thorsen (2004-10-05): 309 # The previous law 7210 which changed the province of Mendoza's time zone 310 # back in May have been modified slightly in a new law 7277, which set the 311 # new end date to 2004-09-26 (original date was 2004-10-17). 312 # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf 313 # 314 # From Mariano Absatz (2004-10-05): 315 # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between 316 # Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 317 # at midnight between Saturday, July 24th and Sunday, July 25th.... 318 # http://www.sanjuan.gov.ar/prensa/archivo/000329.html 319 # http://www.sanjuan.gov.ar/prensa/archivo/000426.html 320 # http://www.sanjuan.gov.ar/prensa/archivo/000441.html 321 322 # From Alex Krivenyshev (2008-01-17): 323 # Here are articles that Argentina Province San Luis is planning to end DST 324 # as earlier as upcoming Monday January 21, 2008 or February 2008: 325 # 326 # Provincia argentina retrasa reloj y marca diferencia con resto del pais 327 # (Argentine Province delayed clock and mark difference with the rest of the 328 # country) 329 # <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel"> 330 # http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel 331 # </a> 332 # 333 # Es inminente que en San Luis atrasen una hora los relojes 334 # (It is imminent in San Luis clocks one hour delay) 335 # <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414"> 336 # http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414 337 # </a> 338 # 339 # <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html"> 340 # http://www.worldtimezone.net/dst_news/dst_news_argentina02.html 341 # </a> 342 343 # From Jesper Norgaard Welen (2008-01-18): 344 # The page of the San Luis provincial government 345 # <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812"> 346 # http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 347 # </a> 348 # confirms what Alex Krivenyshev has earlier sent to the tz 349 # emailing list about that San Luis plans to return to standard 350 # time much earlier than the rest of the country. It also 351 # confirms that upon request the provinces San Juan and Mendoza 352 # refused to follow San Luis in this change. 353 # 354 # The change is supposed to take place Monday the 21.st at 0:00 355 # hours. As far as I understand it if this goes ahead, we need 356 # a new timezone for San Luis (although there are also documented 357 # independent changes in the southamerica file of San Luis in 358 # 1990 and 1991 which has not been confirmed). 359 360 # From Jesper Norgaard Welen (2008-01-25): 361 # Unfortunately the below page has become defunct, about the San Luis 362 # time change. Perhaps because it now is part of a group of pages "Most 363 # important pages of 2008." 364 # 365 # You can use 366 # <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834"> 367 # http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 368 # </a> 369 # instead it seems. Or use "Buscador" from the main page of the San Luis 370 # government, and fill in "huso" and click OK, and you will get 3 pages 371 # from which the first one is identical to the above. 372 373 # From Mariano Absatz (2008-01-28): 374 # I can confirm that the Province of San Luis (and so far only that 375 # province) decided to go back to UTC-3 effective midnight Jan 20th 2008 376 # (that is, Monday 21st at 0:00 is the time the clocks were delayed back 377 # 1 hour), and they intend to keep UTC-3 as their timezone all year round 378 # (that is, unless they change their mind any minute now). 379 # 380 # So we'll have to add yet another city to 'southamerica' (I think San 381 # Luis city is the mos populated city in the Province, so it'd be 382 # America/Argentina/San_Luis... of course I can't remember if San Luis's 383 # history of particular changes goes along with Mendoza or San Juan :-( 384 # (I only remember not being able to collect hard facts about San Luis 385 # back in 2004, when these provinces changed to UTC-4 for a few days, I 386 # mailed them personally and never got an answer). 387 388 # From Paul Eggert (2008-06-30): 389 # Unless otherwise specified, data are from Shanks & Pottenger through 1992, 390 # from the IATA otherwise. As noted below, Shanks & Pottenger say that 391 # America/Cordoba split into 6 subregions during 1991/1992, one of which 392 # was America/San_Luis, but we haven't verified this yet so for now we'll 393 # keep America/Cordoba a single region rather than splitting it into the 394 # other 5 subregions. 395 396 # From Mariano Absatz (2009-03-13): 397 # Yesterday (with our usual 2-day notice) the Province of San Luis 398 # decided that next Sunday instead of "staying" @utc-03:00 they will go 399 # to utc-04:00 until the second Saturday in October... 400 # 401 # The press release is at 402 # <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102"> 403 # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 404 # </a> 405 # (I couldn't find the decree, but 406 # <a href="http://www.sanluis.gov.ar"> 407 # www.sanluis.gov.ar 408 # <a/> 409 # is the official page for the Province Government). 410 # 411 # There's also a note in only one of the major national papers ... 412 # http://www.lanacion.com.ar/nota.asp?nota_id=1107912 413 # 414 # The press release says [quick and dirty translation]: 415 # ... announced that next Sunday, at 00:00, Puntanos (the San Luis 416 # inhabitants) will have to turn back one hour their clocks 417 # 418 # Since then, San Luis will establish its own Province timezone. Thus, 419 # during 2009, this timezone change will run from 00:00 the third Sunday 420 # in March until 24:00 of the second Saturday in October. 421 422 # From Mariano Absatz (2009-10-16): 423 # ...the Province of San Luis is a case in itself. 424 # 425 # The Law at 426 # <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>" 427 # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 428 # </a> 429 # is ambiguous because establishes a calendar from the 2nd Sunday in 430 # October at 0:00 thru the 2nd Saturday in March at 24:00 and the 431 # complement of that starting on the 2nd Sunday of March at 0:00 and 432 # ending on the 2nd Saturday of March at 24:00. 433 # 434 # This clearly breaks every time the 1st of March or October is a Sunday. 435 # 436 # IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd 437 # Sunday of October and March. 438 # 439 # The problem is that the changes in the rest of the Provinces that did 440 # change in 2007/2008, were made according to the Federal Law and Decrees 441 # that did so on the 3rd Sunday of October and March. 442 # 443 # In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday 444 # (October 11th) at 0:00. 445 # 446 # So I guess a new set of rules, besides "Arg", must be made and the last 447 # America/Argentina/San_Luis entries should change to use these... 448 # 449 # I'm enclosing a patch that does what I say... regretfully, the San Luis 450 # timezone must be called "WART/WARST" even when most of the time (like, 451 # right now) WARST == ART... that is, since last Sunday, all the country 452 # is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest 453 # of the country calls it "ART". 454 # ... 455 456 # From Alexander Krivenyshev (2010-04-09): 457 # According to news reports from El Diario de la Republica Province San 458 # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time 459 # after April 11, 2010--will continue to have same time as rest of 460 # Argentina (UTC-3) (no DST). 461 # 462 # Confirmaron la prórroga del huso horario de verano (Spanish) 463 # <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9"> 464 # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 465 # </a> 466 # or (some English translation): 467 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html"> 468 # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html 469 # </a> 470 471 # From Mariano Absatz (2010-04-12): 472 # yes...I can confirm this...and given that San Luis keeps calling 473 # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" 474 # rules...San Luis is still using "Western ARgentina Time" and it got 475 # stuck on Summer daylight savings time even though the summer is over. 476 477 # From Paul Eggert (2013-09-05): 478 # Perhaps San Luis operates on the legal fiction that it is at UTC-4 479 # with perpetual summer time, but ordinary usage typically seems to 480 # just say it's at UTC-3; see, for example, 481 # <http://es.wikipedia.org/wiki/Hora_oficial_argentina>. 482 # We've documented similar situations as being plain changes to 483 # standard time, so let's do that here too. This does not change UTC 484 # offsets, only tm_isdst and the time zone abbreviations. One minor 485 # plus is that this silences a zic complaint that there's no POSIX TZ 486 # setting for time stamps past 2038. 487 488 # From Paul Eggert (2013-02-21): 489 # Milne says Cordoba time was -4:16:48.2. Round to the nearest second. 490 491 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 492 # 493 # Buenos Aires (BA), Capital Federal (CF), 494 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 495 -4:16:48 - CMT 1920 May # Cordoba Mean Time 496 -4:00 - ART 1930 Dec 497 -4:00 Arg AR%sT 1969 Oct 5 498 -3:00 Arg AR%sT 1999 Oct 3 499 -4:00 Arg AR%sT 2000 Mar 3 500 -3:00 Arg AR%sT 501 # 502 # Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), 503 # Chaco (CC), Formosa (FM), Santiago del Estero (SE) 504 # 505 # Shanks & Pottenger also make the following claims, which we haven't verified: 506 # - Formosa switched to -3:00 on 1991-01-07. 507 # - Misiones switched to -3:00 on 1990-12-29. 508 # - Chaco switched to -3:00 on 1991-01-04. 509 # - Santiago del Estero switched to -4:00 on 1991-04-01, 510 # then to -3:00 on 1991-04-26. 511 # 512 Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 513 -4:16:48 - CMT 1920 May 514 -4:00 - ART 1930 Dec 515 -4:00 Arg AR%sT 1969 Oct 5 516 -3:00 Arg AR%sT 1991 Mar 3 517 -4:00 - WART 1991 Oct 20 518 -3:00 Arg AR%sT 1999 Oct 3 519 -4:00 Arg AR%sT 2000 Mar 3 520 -3:00 Arg AR%sT 521 # 522 # Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) 523 Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 524 -4:16:48 - CMT 1920 May 525 -4:00 - ART 1930 Dec 526 -4:00 Arg AR%sT 1969 Oct 5 527 -3:00 Arg AR%sT 1991 Mar 3 528 -4:00 - WART 1991 Oct 20 529 -3:00 Arg AR%sT 1999 Oct 3 530 -4:00 Arg AR%sT 2000 Mar 3 531 -3:00 Arg AR%sT 2008 Oct 18 532 -3:00 - ART 533 # 534 # Tucuman (TM) 535 Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 536 -4:16:48 - CMT 1920 May 537 -4:00 - ART 1930 Dec 538 -4:00 Arg AR%sT 1969 Oct 5 539 -3:00 Arg AR%sT 1991 Mar 3 540 -4:00 - WART 1991 Oct 20 541 -3:00 Arg AR%sT 1999 Oct 3 542 -4:00 Arg AR%sT 2000 Mar 3 543 -3:00 - ART 2004 Jun 1 544 -4:00 - WART 2004 Jun 13 545 -3:00 Arg AR%sT 546 # 547 # La Rioja (LR) 548 Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 549 -4:16:48 - CMT 1920 May 550 -4:00 - ART 1930 Dec 551 -4:00 Arg AR%sT 1969 Oct 5 552 -3:00 Arg AR%sT 1991 Mar 1 553 -4:00 - WART 1991 May 7 554 -3:00 Arg AR%sT 1999 Oct 3 555 -4:00 Arg AR%sT 2000 Mar 3 556 -3:00 - ART 2004 Jun 1 557 -4:00 - WART 2004 Jun 20 558 -3:00 Arg AR%sT 2008 Oct 18 559 -3:00 - ART 560 # 561 # San Juan (SJ) 562 Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 563 -4:16:48 - CMT 1920 May 564 -4:00 - ART 1930 Dec 565 -4:00 Arg AR%sT 1969 Oct 5 566 -3:00 Arg AR%sT 1991 Mar 1 567 -4:00 - WART 1991 May 7 568 -3:00 Arg AR%sT 1999 Oct 3 569 -4:00 Arg AR%sT 2000 Mar 3 570 -3:00 - ART 2004 May 31 571 -4:00 - WART 2004 Jul 25 572 -3:00 Arg AR%sT 2008 Oct 18 573 -3:00 - ART 574 # 575 # Jujuy (JY) 576 Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 577 -4:16:48 - CMT 1920 May 578 -4:00 - ART 1930 Dec 579 -4:00 Arg AR%sT 1969 Oct 5 580 -3:00 Arg AR%sT 1990 Mar 4 581 -4:00 - WART 1990 Oct 28 582 -4:00 1:00 WARST 1991 Mar 17 583 -4:00 - WART 1991 Oct 6 584 -3:00 1:00 ARST 1992 585 -3:00 Arg AR%sT 1999 Oct 3 586 -4:00 Arg AR%sT 2000 Mar 3 587 -3:00 Arg AR%sT 2008 Oct 18 588 -3:00 - ART 589 # 590 # Catamarca (CT), Chubut (CH) 591 Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 592 -4:16:48 - CMT 1920 May 593 -4:00 - ART 1930 Dec 594 -4:00 Arg AR%sT 1969 Oct 5 595 -3:00 Arg AR%sT 1991 Mar 3 596 -4:00 - WART 1991 Oct 20 597 -3:00 Arg AR%sT 1999 Oct 3 598 -4:00 Arg AR%sT 2000 Mar 3 599 -3:00 - ART 2004 Jun 1 600 -4:00 - WART 2004 Jun 20 601 -3:00 Arg AR%sT 2008 Oct 18 602 -3:00 - ART 603 # 604 # Mendoza (MZ) 605 Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 606 -4:16:48 - CMT 1920 May 607 -4:00 - ART 1930 Dec 608 -4:00 Arg AR%sT 1969 Oct 5 609 -3:00 Arg AR%sT 1990 Mar 4 610 -4:00 - WART 1990 Oct 15 611 -4:00 1:00 WARST 1991 Mar 1 612 -4:00 - WART 1991 Oct 15 613 -4:00 1:00 WARST 1992 Mar 1 614 -4:00 - WART 1992 Oct 18 615 -3:00 Arg AR%sT 1999 Oct 3 616 -4:00 Arg AR%sT 2000 Mar 3 617 -3:00 - ART 2004 May 23 618 -4:00 - WART 2004 Sep 26 619 -3:00 Arg AR%sT 2008 Oct 18 620 -3:00 - ART 621 # 622 # San Luis (SL) 623 624 Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - 625 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S 626 627 Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 628 -4:16:48 - CMT 1920 May 629 -4:00 - ART 1930 Dec 630 -4:00 Arg AR%sT 1969 Oct 5 631 -3:00 Arg AR%sT 1990 632 -3:00 1:00 ARST 1990 Mar 14 633 -4:00 - WART 1990 Oct 15 634 -4:00 1:00 WARST 1991 Mar 1 635 -4:00 - WART 1991 Jun 1 636 -3:00 - ART 1999 Oct 3 637 -4:00 1:00 WARST 2000 Mar 3 638 -3:00 - ART 2004 May 31 639 -4:00 - WART 2004 Jul 25 640 -3:00 Arg AR%sT 2008 Jan 21 641 -4:00 SanLuis WAR%sT 2009 Oct 11 642 -3:00 - ART 643 # 644 # Santa Cruz (SC) 645 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 646 -4:16:48 - CMT 1920 May # Cordoba Mean Time 647 -4:00 - ART 1930 Dec 648 -4:00 Arg AR%sT 1969 Oct 5 649 -3:00 Arg AR%sT 1999 Oct 3 650 -4:00 Arg AR%sT 2000 Mar 3 651 -3:00 - ART 2004 Jun 1 652 -4:00 - WART 2004 Jun 20 653 -3:00 Arg AR%sT 2008 Oct 18 654 -3:00 - ART 655 # 656 # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) 657 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 658 -4:16:48 - CMT 1920 May # Cordoba Mean Time 659 -4:00 - ART 1930 Dec 660 -4:00 Arg AR%sT 1969 Oct 5 661 -3:00 Arg AR%sT 1999 Oct 3 662 -4:00 Arg AR%sT 2000 Mar 3 663 -3:00 - ART 2004 May 30 664 -4:00 - WART 2004 Jun 20 665 -3:00 Arg AR%sT 2008 Oct 18 666 -3:00 - ART 667 668 # Aruba 669 Link America/Curacao America/Aruba 670 671 # Bolivia 672 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 673 Zone America/La_Paz -4:32:36 - LMT 1890 674 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 675 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 676 -4:00 - BOT # Bolivia Time 677 678 # Brazil 679 680 # From Paul Eggert (1993-11-18): 681 # The mayor of Rio recently attempted to change the time zone rules 682 # just in his city, in order to leave more summer time for the tourist trade. 683 # The rule change lasted only part of the day; 684 # the federal government refused to follow the city's rules, and business 685 # was in a chaos, so the mayor backed down that afternoon. 686 687 # From IATA SSIM (1996-02): 688 # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 689 # Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), 690 # Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), 691 # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 692 # [The last three states are new to this issue of the IATA SSIM.] 693 694 # From Gwillim Law (1996-10-07): 695 # Geography, history (Tocantins was part of Goias until 1989), and other 696 # sources of time zone information lead me to believe that AL, SE, and TO were 697 # always in BR1, and so the only change was whether or not they observed DST.... 698 # The earliest issue of the SSIM I have is 2/91. Each issue from then until 699 # 9/95 says that DST is observed only in the ten states I quoted from 9/95, 700 # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 701 # (UTC-4).... The other two time zones given for Brazil are BR3, which is 702 # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 703 # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 704 # become part of the state of Pernambuco). The boundary between BR1 and BR2 705 # has never been clearly stated. They've simply been called East and West. 706 # However, some conclusions can be drawn from another IATA manual: the Airline 707 # Coding Directory, which lists close to 400 airports in Brazil. For each 708 # airport it gives a time zone which is coded to the SSIM. From that 709 # information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), 710 # Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do 711 # Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. 712 713 # From Marcos Tadeu (1998-09-27): 714 # <a href="http://pcdsh01.on.br/verao1.html"> 715 # Brazilian official page 716 # </a> 717 718 # From Jesper Norgaard (2000-11-03): 719 # [For an official list of which regions in Brazil use which time zones, see:] 720 # http://pcdsh01.on.br/Fusbr.htm 721 # http://pcdsh01.on.br/Fusbrhv.htm 722 723 # From Celso Doria via David Madeo (2002-10-09): 724 # The reason for the delay this year has to do with elections in Brazil. 725 # 726 # Unlike in the United States, elections in Brazil are 100% computerized and 727 # the results are known almost immediately. Yesterday, it was the first 728 # round of the elections when 115 million Brazilians voted for President, 729 # Governor, Senators, Federal Deputies, and State Deputies. Nobody is 730 # counting (or re-counting) votes anymore and we know there will be a second 731 # round for the Presidency and also for some Governors. The 2nd round will 732 # take place on October 27th. 733 # 734 # The reason why the DST will only begin November 3rd is that the thousands 735 # of electoral machines used cannot have their time changed, and since the 736 # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 737 # the Government decided to postpone DST, instead of changing the Constitution 738 # (maybe, for the next elections, it will be possible to change the clock)... 739 740 # From Rodrigo Severo (2004-10-04): 741 # It's just the biannual change made necessary by the much hyped, supposedly 742 # modern Brazilian eletronic voting machines which, apparently, can't deal 743 # with a time change between the first and the second rounds of the elections. 744 745 # From Steffen Thorsen (2007-09-20): 746 # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 747 # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 748 749 # From Paul Schulze (2008-06-24): 750 # ...by law number 11.662 of April 24, 2008 (published in the "Diario 751 # Oficial da Uniao"...) in Brazil there are changes in the timezones, 752 # effective today (00:00am at June 24, 2008) as follows: 753 # 754 # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the 755 # part of the Amazonas state that had this timezone now being put to the 756 # timezone UTC+4 757 # b) The whole Para state now is put at timezone UTC+3, instead of just 758 # part of it, as was before. 759 # 760 # This change follows a proposal of senator Tiao Viana of Acre state, that 761 # proposed it due to concerns about open television channels displaying 762 # programs inappropriate to youths in the states that had the timezone 763 # UTC+5 too early in the night. In the occasion, some more corrections 764 # were proposed, trying to unify the timezones of any given state. This 765 # change modifies timezone rules defined in decree 2.784 of 18 June, 766 # 1913. 767 768 # From Rodrigo Severo (2008-06-24): 769 # Just correcting the URL: 770 # <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008"> 771 # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 772 # </a> 773 # 774 # As a result of the above Decree I believe the America/Rio_Branco 775 # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 776 # be created to represent the...west side of the Para State. I 777 # suggest this new timezone be called Santarem as the most 778 # important/populated city in the affected area. 779 # 780 # This new timezone would be the same as the Rio_Branco timezone up to 781 # the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 782 783 # From Alex Krivenyshev (2008-06-24): 784 # This is a quick reference page for New and Old Brazil Time Zones map. 785 # <a href="http://www.worldtimezone.com/brazil-time-new-old.php"> 786 # http://www.worldtimezone.com/brazil-time-new-old.php 787 # </a> 788 # 789 # - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05 790 # (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western 791 # part of Par state is moving to one timezone UTC- 03 (from UTC -04). 792 793 # From Paul Eggert (2002-10-10): 794 # The official decrees referenced below are mostly taken from 795 # <a href="http://pcdsh01.on.br/DecHV.html"> 796 # Decretos sobre o Horario de Verao no Brasil 797 # </a>. 798 799 # From Steffen Thorsen (2008-08-29): 800 # As announced by the government and many newspapers in Brazil late 801 # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 802 # it will end on 2009-02-15 (current rule for Brazil is fine). Based on 803 # past years experience with the elections, there was a good chance that 804 # the start was postponed to November, but it did not happen this year. 805 # 806 # It has not yet been posted to http://pcdsh01.on.br/DecHV.html 807 # 808 # An official page about it: 809 # <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"> 810 # http://www.mme.gov.br/site/news/detail.do?newsId=16722 811 # </a> 812 # Note that this link does not always work directly, but must be accessed 813 # by going to 814 # <a href="http://www.mme.gov.br/first"> 815 # http://www.mme.gov.br/first 816 # </a> 817 # 818 # One example link that works directly: 819 # <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54"> 820 # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 821 # (Portuguese) 822 # </a> 823 # 824 # We have a written a short article about it as well: 825 # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"> 826 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 827 # </a> 828 # 829 # From Alexander Krivenyshev (2011-10-04): 830 # State Bahia will return to Daylight savings time this year after 8 years off. 831 # The announcement was made by Governor Jaques Wagner in an interview to a 832 # television station in Salvador. 833 834 # In Portuguese: 835 # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html"> 836 # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html 837 # </a> and 838 # <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html"> 839 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html 840 # </a> 841 842 # From Guilherme Bernardes Rodrigues (2011-10-07): 843 # There is news in the media, however there is still no decree about it. 844 # I just send a e-mail to Zulmira Brandao at 845 # <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the 846 # official agency about time in Brazil, and she confirmed that the old rule is 847 # still in force. 848 849 # From Guilherme Bernardes Rodrigues (2011-10-14) 850 # It's official, the President signed a decree that includes Bahia in summer 851 # time. 852 # [ and in a second message (same day): ] 853 # I found the decree. 854 # 855 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 856 # Link : 857 # <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6"> 858 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 859 # </a> 860 861 # From Kelley Cook (2012-10-16): 862 # The governor of state of Bahia in Brazil announced on Thursday that 863 # due to public pressure, he is reversing the DST policy they implemented 864 # last year and will not be going to Summer Time on October 21st.... 865 # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia 866 867 # From Rodrigo Severo (2012-10-16): 868 # Tocantins state will have DST. 869 # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html 870 871 # From Steffen Thorsen (2013-09-20): 872 # Tocantins in Brazil is very likely not to observe DST from October.... 873 # http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto 874 # We will keep this article updated when this is confirmed: 875 # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html 876 877 # From Steffen Thorsen (2013-10-17): 878 # http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html 879 # Senator Jorge Viana announced that Acre will change time zone on November 10. 880 # He did not specify the time of the change, nor if western parts of Amazonas 881 # will change as well. 882 # 883 # From Paul Eggert (2013-10-17): 884 # For now, assume western Amazonas will change as well. 885 886 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 887 # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) 888 # Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10) 889 Rule Brazil 1931 only - Oct 3 11:00 1:00 S 890 Rule Brazil 1932 1933 - Apr 1 0:00 0 - 891 Rule Brazil 1932 only - Oct 3 0:00 1:00 S 892 # Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10) 893 # revoked DST. 894 # Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24) 895 # Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13) 896 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S 897 Rule Brazil 1950 only - Apr 16 1:00 0 - 898 Rule Brazil 1951 1952 - Apr 1 0:00 0 - 899 # Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24) 900 Rule Brazil 1953 only - Mar 1 0:00 0 - 901 # Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30) 902 # revoked DST. 903 # Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18) 904 # established DST from 1963-10-23 00:00 to 1964-02-29 00:00 905 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 906 # Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03) 907 # extended the above decree to all of the national territory on 12-09. 908 Rule Brazil 1963 only - Dec 9 0:00 1:00 S 909 # Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25) 910 # extended summer time by one day to 1964-03-01 00:00 (start of school). 911 Rule Brazil 1964 only - Mar 1 0:00 0 - 912 # Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27) 913 Rule Brazil 1965 only - Jan 31 0:00 1:00 S 914 Rule Brazil 1965 only - Mar 31 0:00 0 - 915 # Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22) 916 Rule Brazil 1965 only - Dec 1 0:00 1:00 S 917 # Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18) 918 Rule Brazil 1966 1968 - Mar 1 0:00 0 - 919 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S 920 # Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15) 921 # revoked DST. 922 # Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27) 923 Rule Brazil 1985 only - Nov 2 0:00 1:00 S 924 # Decree 92,310 (1986-01-21) 925 # Decree 92,463 (1986-03-13) 926 Rule Brazil 1986 only - Mar 15 0:00 0 - 927 # Decree 93,316 (1986-10-01) 928 Rule Brazil 1986 only - Oct 25 0:00 1:00 S 929 Rule Brazil 1987 only - Feb 14 0:00 0 - 930 # Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22) 931 Rule Brazil 1987 only - Oct 25 0:00 1:00 S 932 Rule Brazil 1988 only - Feb 7 0:00 0 - 933 # Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12) 934 # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 935 Rule Brazil 1988 only - Oct 16 0:00 1:00 S 936 Rule Brazil 1989 only - Jan 29 0:00 0 - 937 # Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21) 938 # with the same exceptions 939 Rule Brazil 1989 only - Oct 15 0:00 1:00 S 940 Rule Brazil 1990 only - Feb 11 0:00 0 - 941 # Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17) 942 # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 943 # Decree 99,629 (1990-10-19) adds BA, MT. 944 Rule Brazil 1990 only - Oct 21 0:00 1:00 S 945 Rule Brazil 1991 only - Feb 17 0:00 0 - 946 # <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25) 947 # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 948 Rule Brazil 1991 only - Oct 20 0:00 1:00 S 949 Rule Brazil 1992 only - Feb 9 0:00 0 - 950 # <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16) 951 # adopted by same states. 952 Rule Brazil 1992 only - Oct 25 0:00 1:00 S 953 Rule Brazil 1993 only - Jan 31 0:00 0 - 954 # Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28) 955 # adopted by same states, plus AM. 956 # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22; 957 # web page corrected 2004-01-07) adopted by same states, minus AM. 958 # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) 959 # adopted by same states, plus MT and TO. 960 # Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13) 961 # adds AL, SE. 962 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S 963 Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 964 Rule Brazil 1996 only - Feb 11 0:00 0 - 965 # Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04) 966 # adopted by same states, minus AL, SE. 967 Rule Brazil 1996 only - Oct 6 0:00 1:00 S 968 Rule Brazil 1997 only - Feb 16 0:00 0 - 969 # From Daniel C. Sobral (1998-02-12): 970 # In 1997, the DS began on October 6. The stated reason was that 971 # because international television networks ignored Brazil's policy on DS, 972 # they bought the wrong times on satellite for coverage of Pope's visit. 973 # This year, the ending date of DS was postponed to March 1 974 # to help dealing with the shortages of electric power. 975 # 976 # Decree 2,317 (1997-09-04), adopted by same states. 977 Rule Brazil 1997 only - Oct 6 0:00 1:00 S 978 # Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a> 979 # (1998-02-10) 980 Rule Brazil 1998 only - Mar 1 0:00 0 - 981 # Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11) 982 # adopted by the same states as before. 983 Rule Brazil 1998 only - Oct 11 0:00 1:00 S 984 Rule Brazil 1999 only - Feb 21 0:00 0 - 985 # Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a> 986 # (1999-08-23) adopted by same states. 987 # Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30) 988 # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 989 Rule Brazil 1999 only - Oct 3 0:00 1:00 S 990 Rule Brazil 2000 only - Feb 27 0:00 0 - 991 # Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06) 992 # adopted by the same states as before. 993 # Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13) 994 # repeals DST in PE and RR, effective 2000-10-15 00:00. 995 # Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17) 996 # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 997 # Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a> 998 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 999 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S 1000 Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 1001 # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 1002 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a> 1003 Rule Brazil 2002 only - Nov 3 0:00 1:00 S 1004 # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 1005 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a> 1006 Rule Brazil 2003 only - Oct 19 0:00 1:00 S 1007 # Decree 5,223 (2004-10-01) reestablishes DST in MT. 1008 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a> 1009 Rule Brazil 2004 only - Nov 2 0:00 1:00 S 1010 # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), 1011 # adopted by the same states as before. 1012 Rule Brazil 2005 only - Oct 16 0:00 1:00 S 1013 # Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03), 1014 # adopted by the same states as before. 1015 Rule Brazil 2006 only - Nov 5 0:00 1:00 S 1016 Rule Brazil 2007 only - Feb 25 0:00 0 - 1017 # Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), 1018 # adopted by the same states as before. 1019 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S 1020 # From Frederico A. C. Neves (2008-09-10): 1021 # According to this decree 1022 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"> 1023 # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 1024 # </a> 1025 # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 1026 # 3rd Feb Sunday. There is an exception on the return date when this is 1027 # the Carnival Sunday then the return date will be the next Sunday... 1028 Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S 1029 Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 1030 Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - 1031 Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 1032 Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - 1033 Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 1034 Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - 1035 Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 1036 Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - 1037 Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 1038 Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - 1039 Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 1040 Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - 1041 # From Arthur David Olson (2008-09-29): 1042 # The next is wrong in some years but is better than nothing. 1043 Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - 1044 1045 # The latest ruleset listed above says that the following states observe DST: 1046 # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 1047 1048 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1049 # 1050 # Fernando de Noronha (administratively part of PE) 1051 Zone America/Noronha -2:09:40 - LMT 1914 1052 -2:00 Brazil FN%sT 1990 Sep 17 1053 -2:00 - FNT 1999 Sep 30 1054 -2:00 Brazil FN%sT 2000 Oct 15 1055 -2:00 - FNT 2001 Sep 13 1056 -2:00 Brazil FN%sT 2002 Oct 1 1057 -2:00 - FNT 1058 # Other Atlantic islands have no permanent settlement. 1059 # These include Trindade and Martin Vaz (administratively part of ES), 1060 # Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE). 1061 # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 1062 # it also included the Penedos. 1063 # 1064 # Amapa (AP), east Para (PA) 1065 # East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu. 1066 # The division between east and west Para is the river Xingu. 1067 # In the north a very small part from the river Javary (now Jari I guess, 1068 # the border with Amapa) to the Amazon, then to the Xingu. 1069 Zone America/Belem -3:13:56 - LMT 1914 1070 -3:00 Brazil BR%sT 1988 Sep 12 1071 -3:00 - BRT 1072 # 1073 # west Para (PA) 1074 # West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. 1075 Zone America/Santarem -3:38:48 - LMT 1914 1076 -4:00 Brazil AM%sT 1988 Sep 12 1077 -4:00 - AMT 2008 Jun 24 00:00 1078 -3:00 - BRT 1079 # 1080 # Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), 1081 # Paraiba (PB) 1082 Zone America/Fortaleza -2:34:00 - LMT 1914 1083 -3:00 Brazil BR%sT 1990 Sep 17 1084 -3:00 - BRT 1999 Sep 30 1085 -3:00 Brazil BR%sT 2000 Oct 22 1086 -3:00 - BRT 2001 Sep 13 1087 -3:00 Brazil BR%sT 2002 Oct 1 1088 -3:00 - BRT 1089 # 1090 # Pernambuco (PE) (except Atlantic islands) 1091 Zone America/Recife -2:19:36 - LMT 1914 1092 -3:00 Brazil BR%sT 1990 Sep 17 1093 -3:00 - BRT 1999 Sep 30 1094 -3:00 Brazil BR%sT 2000 Oct 15 1095 -3:00 - BRT 2001 Sep 13 1096 -3:00 Brazil BR%sT 2002 Oct 1 1097 -3:00 - BRT 1098 # 1099 # Tocantins (TO) 1100 Zone America/Araguaina -3:12:48 - LMT 1914 1101 -3:00 Brazil BR%sT 1990 Sep 17 1102 -3:00 - BRT 1995 Sep 14 1103 -3:00 Brazil BR%sT 2003 Sep 24 1104 -3:00 - BRT 2012 Oct 21 1105 -3:00 Brazil BR%sT 2013 Sep 1106 -3:00 - BRT 1107 # 1108 # Alagoas (AL), Sergipe (SE) 1109 Zone America/Maceio -2:22:52 - LMT 1914 1110 -3:00 Brazil BR%sT 1990 Sep 17 1111 -3:00 - BRT 1995 Oct 13 1112 -3:00 Brazil BR%sT 1996 Sep 4 1113 -3:00 - BRT 1999 Sep 30 1114 -3:00 Brazil BR%sT 2000 Oct 22 1115 -3:00 - BRT 2001 Sep 13 1116 -3:00 Brazil BR%sT 2002 Oct 1 1117 -3:00 - BRT 1118 # 1119 # Bahia (BA) 1120 # There are too many Salvadors elsewhere, so use America/Bahia instead 1121 # of America/Salvador. 1122 Zone America/Bahia -2:34:04 - LMT 1914 1123 -3:00 Brazil BR%sT 2003 Sep 24 1124 -3:00 - BRT 2011 Oct 16 1125 -3:00 Brazil BR%sT 2012 Oct 21 1126 -3:00 - BRT 1127 # 1128 # Goias (GO), Distrito Federal (DF), Minas Gerais (MG), 1129 # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), 1130 # Santa Catarina (SC), Rio Grande do Sul (RS) 1131 Zone America/Sao_Paulo -3:06:28 - LMT 1914 1132 -3:00 Brazil BR%sT 1963 Oct 23 00:00 1133 -3:00 1:00 BRST 1964 1134 -3:00 Brazil BR%sT 1135 # 1136 # Mato Grosso do Sul (MS) 1137 Zone America/Campo_Grande -3:38:28 - LMT 1914 1138 -4:00 Brazil AM%sT 1139 # 1140 # Mato Grosso (MT) 1141 Zone America/Cuiaba -3:44:20 - LMT 1914 1142 -4:00 Brazil AM%sT 2003 Sep 24 1143 -4:00 - AMT 2004 Oct 1 1144 -4:00 Brazil AM%sT 1145 # 1146 # Rondonia (RO) 1147 Zone America/Porto_Velho -4:15:36 - LMT 1914 1148 -4:00 Brazil AM%sT 1988 Sep 12 1149 -4:00 - AMT 1150 # 1151 # Roraima (RR) 1152 Zone America/Boa_Vista -4:02:40 - LMT 1914 1153 -4:00 Brazil AM%sT 1988 Sep 12 1154 -4:00 - AMT 1999 Sep 30 1155 -4:00 Brazil AM%sT 2000 Oct 15 1156 -4:00 - AMT 1157 # 1158 # east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto 1159 # The great circle line from Tabatinga to Porto Acre divides 1160 # east from west Amazonas. 1161 Zone America/Manaus -4:00:04 - LMT 1914 1162 -4:00 Brazil AM%sT 1988 Sep 12 1163 -4:00 - AMT 1993 Sep 28 1164 -4:00 Brazil AM%sT 1994 Sep 22 1165 -4:00 - AMT 1166 # 1167 # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 1168 # Eirunepe, Envira, Ipixuna 1169 Zone America/Eirunepe -4:39:28 - LMT 1914 1170 -5:00 Brazil AC%sT 1988 Sep 12 1171 -5:00 - ACT 1993 Sep 28 1172 -5:00 Brazil AC%sT 1994 Sep 22 1173 -5:00 - ACT 2008 Jun 24 00:00 1174 -4:00 - AMT 2013 Nov 10 1175 -5:00 - ACT 1176 # 1177 # Acre (AC) 1178 Zone America/Rio_Branco -4:31:12 - LMT 1914 1179 -5:00 Brazil AC%sT 1988 Sep 12 1180 -5:00 - ACT 2008 Jun 24 00:00 1181 -4:00 - AMT 2013 Nov 10 1182 -5:00 - ACT 1183 1184 # Chile 1185 1186 # From Eduardo Krell (1995-10-19): 1187 # The law says to switch to DST at midnight [24:00] on the second SATURDAY 1188 # of October.... The law is the same for March and October. 1189 # (1998-09-29): 1190 # Because of the drought this year, the government decided to go into 1191 # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 1192 # (unless there's another dry season next year, I guess). 1193 1194 # From Julio I. Pacheco Troncoso (1999-03-18): 1195 # Because of the same drought, the government decided to end DST later, 1196 # on April 3, (one-time change). 1197 1198 # From Oscar van Vlijmen (2006-10-08): 1199 # http://www.horaoficial.cl/cambio.htm 1200 1201 # From Jesper Norgaard Welen (2006-10-08): 1202 # I think that there are some obvious mistakes in the suggested link 1203 # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 1204 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 1205 # (they should have been 1990-09-15 and 1990-09-16 respectively), but 1206 # anyhow it clears up some doubts too. 1207 1208 # From Paul Eggert (2006-12-27): 1209 # The following data for Chile and America/Santiago are from 1210 # <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by 1211 # Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks 1212 # & Pottenger, except with DST transitions after 1932 cloned from 1213 # America/Santiago. The pre-1980 Pacific/Easter data are dubious, 1214 # but we have no other source. 1215 1216 # From German Poo-Caaman~o (2008-03-03): 1217 # Due to drought, Chile extends Daylight Time in three weeks. This 1218 # is one-time change (Saturday 3/29 at 24:00 for America/Santiago 1219 # and Saturday 3/29 at 22:00 for Pacific/Easter) 1220 # The Supreme Decree is located at 1221 # <a href="http://www.shoa.cl/servicios/supremo316.pdf"> 1222 # http://www.shoa.cl/servicios/supremo316.pdf 1223 # </a> 1224 # and the instructions for 2008 are located in: 1225 # <a href="http://www.horaoficial.cl/cambio.htm"> 1226 # http://www.horaoficial.cl/cambio.htm 1227 # </a>. 1228 1229 # From Jose Miguel Garrido (2008-03-05): 1230 # ... 1231 # You could see the announces of the change on 1232 # <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"> 1233 # http://www.shoa.cl/noticias/2008/04hora/hora.htm 1234 # </a>. 1235 1236 # From Angel Chiang (2010-03-04): 1237 # Subject: DST in Chile exceptionally extended to 3 April due to earthquake 1238 # <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098"> 1239 # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 1240 # </a> 1241 # (in Spanish, last paragraph). 1242 # 1243 # This is breaking news. There should be more information available later. 1244 1245 # From Arthur Daivd Olson (2010-03-06): 1246 # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. 1247 1248 # From Glenn Eychaner (2011-03-02): [geychaner@mac.com] 1249 # It appears that the Chilean government has decided to postpone the 1250 # change from summer time to winter time again, by three weeks to April 1251 # 2nd: 1252 # <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651"> 1253 # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 1254 # </a> 1255 # 1256 # This is not yet reflected in the official "cambio de hora" site, but 1257 # probably will be soon: 1258 # <a href="http://www.horaoficial.cl/cambio.htm"> 1259 # http://www.horaoficial.cl/cambio.htm 1260 # </a> 1261 1262 # From Arthur David Olson (2011-03-02): 1263 # The emol.com article mentions a water shortage as the cause of the 1264 # postponement, which may mean that it's not a permanent change. 1265 1266 # From Glenn Eychaner (2011-03-28): 1267 # The article: 1268 # <a href="http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}"> 1269 # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} 1270 # </a> 1271 # 1272 # In English: 1273 # Chile's clocks will go back an hour this year on the 7th of May instead 1274 # of this Saturday. They will go forward again the 3rd Saturday in 1275 # August, not in October as they have since 1968. This is a pilot plan 1276 # which will be reevaluated in 2012. 1277 1278 # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): 1279 # As stated in the website of the Chilean Energy Ministry 1280 # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html 1281 # The Chilean Government has decided to postpone the entrance into winter time 1282 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not 1283 # been yet formalized but it will within the next days. 1284 # Quote from the website communication: 1285 # 1286 # 6. For the year 2012, the dates of entry into winter time will be as follows: 1287 # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at 1288 # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 1289 # of the same day. 1290 # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, 1291 # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be 1292 # 01:00 on September 2. 1293 1294 # From Steffen Thorsen (2013-02-15): 1295 # According to several news sources, Chile has extended DST this year, 1296 # they will end DST later and start DST earlier than planned. They 1297 # hope to save energy. The new end date is 2013-04-28 00:00 and new 1298 # start date is 2013-09-08 00:00.... 1299 # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm 1300 1301 # From Jose Miguel Garrido (2014-02-19): 1302 # Today appeared in the Diario Oficial a decree amending the time change 1303 # dates to 2014. 1304 # DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) 1305 # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) 1306 # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf 1307 1308 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the 1309 # 'antarctica' file. 1310 1311 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1312 Rule Chile 1927 1932 - Sep 1 0:00 1:00 S 1313 Rule Chile 1928 1932 - Apr 1 0:00 0 - 1314 Rule Chile 1942 only - Jun 1 4:00u 0 - 1315 Rule Chile 1942 only - Aug 1 5:00u 1:00 S 1316 Rule Chile 1946 only - Jul 15 4:00u 1:00 S 1317 Rule Chile 1946 only - Sep 1 3:00u 0:00 - 1318 Rule Chile 1947 only - Apr 1 4:00u 0 - 1319 Rule Chile 1968 only - Nov 3 4:00u 1:00 S 1320 Rule Chile 1969 only - Mar 30 3:00u 0 - 1321 Rule Chile 1969 only - Nov 23 4:00u 1:00 S 1322 Rule Chile 1970 only - Mar 29 3:00u 0 - 1323 Rule Chile 1971 only - Mar 14 3:00u 0 - 1324 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S 1325 Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1326 Rule Chile 1973 only - Sep 30 4:00u 1:00 S 1327 Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S 1328 Rule Chile 1987 only - Apr 12 3:00u 0 - 1329 Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - 1330 Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S 1331 Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S 1332 Rule Chile 1990 only - Mar 18 3:00u 0 - 1333 Rule Chile 1990 only - Sep 16 4:00u 1:00 S 1334 Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1335 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S 1336 Rule Chile 1997 only - Mar 30 3:00u 0 - 1337 Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - 1338 Rule Chile 1998 only - Sep 27 4:00u 1:00 S 1339 Rule Chile 1999 only - Apr 4 3:00u 0 - 1340 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S 1341 Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 1342 # N.B.: the end of March 29 in Chile is March 30 in Universal time, 1343 # which is used below in specifying the transition. 1344 Rule Chile 2008 only - Mar 30 3:00u 0 - 1345 Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - 1346 Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - 1347 Rule Chile 2011 only - May Sun>=2 3:00u 0 - 1348 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S 1349 Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - 1350 Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S 1351 # IATA SSIM anomalies: (1992-02) says 1992-03-14; 1352 # (1996-09) says 1998-03-08. Ignore these. 1353 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1354 Zone America/Santiago -4:42:46 - LMT 1890 1355 -4:42:46 - SMT 1910 # Santiago Mean Time 1356 -5:00 - CLT 1916 Jul 1 # Chile Time 1357 -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time 1358 -4:00 - CLT 1919 Jul 1 # Chile Time 1359 -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time 1360 -5:00 Chile CL%sT 1947 May 22 # Chile Time 1361 -4:00 Chile CL%sT 1362 Zone Pacific/Easter -7:17:44 - LMT 1890 1363 -7:17:28 - EMT 1932 Sep # Easter Mean Time 1364 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time 1365 -6:00 Chile EAS%sT 1366 # 1367 # Sala y Gomez Island is like Pacific/Easter. 1368 # Other Chilean locations, including Juan Fernandez Is, San Ambrosio, 1369 # San Felix, and Antarctic bases, are like America/Santiago. 1370 1371 # Colombia 1372 1373 # Milne gives 4:56:16.4 for Bogota time in 1899; round to nearest. He writes, 1374 # "A variation of fifteen minutes in the public clocks of Bogota is not rare." 1375 1376 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1377 Rule CO 1992 only - May 3 0:00 1:00 S 1378 Rule CO 1993 only - Apr 4 0:00 0 - 1379 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1380 Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 1381 -4:56:16 - BMT 1914 Nov 23 # Bogota Mean Time 1382 -5:00 CO CO%sT # Colombia Time 1383 # Malpelo, Providencia, San Andres 1384 # no information; probably like America/Bogota 1385 1386 # Curacao 1387 1388 # Milne gives 4:35:46.9 for Curacao mean time; round to nearest. 1389 # 1390 # From Paul Eggert (2006-03-22): 1391 # Shanks & Pottenger say that The Bottom and Philipsburg have been at 1392 # -4:00 since standard time was introduced on 1912-03-02; and that 1393 # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 1394 # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 1395 # Saba Island has been like Curacao. 1396 # This all predates our 1970 cutoff, though. 1397 # 1398 # By July 2007 Curacao and St Maarten are planned to become 1399 # associated states within the Netherlands, much like Aruba; 1400 # Bonaire, Saba and St Eustatius would become directly part of the 1401 # Netherlands as Kingdom Islands. This won't affect their time zones 1402 # though, as far as we know. 1403 # 1404 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1405 Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad 1406 -4:30 - ANT 1965 # Netherlands Antilles Time 1407 -4:00 - AST 1408 1409 # From Arthur David Olson (2011-06-15): 1410 # use links for places with new iso3166 codes. 1411 # The name "Lower Prince's Quarter" is both longer than fourteen charaters 1412 # and contains an apostrophe; use "Lower_Princes" below. 1413 1414 Link America/Curacao America/Lower_Princes # Sint Maarten 1415 Link America/Curacao America/Kralendijk # Caribbean Netherlands 1416 1417 # Ecuador 1418 # 1419 # Milne says the Sentral and South American Telegraph Company used -5:24:15. 1420 # 1421 # From Paul Eggert (2007-03-04): 1422 # Apparently Ecuador had a failed experiment with DST in 1992. 1423 # <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and 1424 # <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both 1425 # talk about "hora Sixto". Leave this alone for now, as we have no data. 1426 # 1427 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1428 Zone America/Guayaquil -5:19:20 - LMT 1890 1429 -5:14:00 - QMT 1931 # Quito Mean Time 1430 -5:00 - ECT # Ecuador Time 1431 Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 1432 -5:00 - ECT 1986 1433 -6:00 - GALT # Galapagos Time 1434 1435 # Falklands 1436 1437 # From Paul Eggert (2006-03-22): 1438 # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 1439 # the IATA gives 1996-09-08. Go with Shanks & Pottenger. 1440 1441 # From Falkland Islands Government Office, London (2001-01-22) 1442 # via Jesper Norgaard: 1443 # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 1444 # April 2001 and advance one hour to summer time at 2 am on Sunday 2 1445 # September. It is anticipated that the clocks will revert back at 2 1446 # am on Sunday 21 April 2002 and advance to summer time at 2 am on 1447 # Sunday 1 September. 1448 1449 # From Rives McDow (2001-02-13): 1450 # 1451 # I have communicated several times with people there, and the last 1452 # time I had communications that was helpful was in 1998. Here is 1453 # what was said then: 1454 # 1455 # "The general rule was that Stanley used daylight saving and the Camp 1456 # did not. However for various reasons many people in the Camp have 1457 # started to use daylight saving (known locally as 'Stanley Time') 1458 # There is no rule as to who uses daylight saving - it is a matter of 1459 # personal choice and so it is impossible to draw a map showing who 1460 # uses it and who does not. Any list would be out of date as soon as 1461 # it was produced. This year daylight saving ended on April 18/19th 1462 # and started again on September 12/13th. I do not know what the rule 1463 # is, but can find out if you like. We do not change at the same time 1464 # as UK or Chile." 1465 # 1466 # I did have in my notes that the rule was "Second Saturday in Sep at 1467 # 0:00 until third Saturday in Apr at 0:00". I think that this does 1468 # not agree in some cases with Shanks; is this true? 1469 # 1470 # Also, there is no mention in the list that some areas in the 1471 # Falklands do not use DST. I have found in my communications there 1472 # that these areas are on the western half of East Falkland and all of 1473 # West Falkland. Stanley is the only place that consistently observes 1474 # DST. Again, as in other places in the world, the farmers don't like 1475 # it. West Falkland is almost entirely sheep farmers. 1476 # 1477 # I know one lady there that keeps a list of which farm keeps DST and 1478 # which doesn't each year. She runs a shop in Stanley, and says that 1479 # the list changes each year. She uses it to communicate to her 1480 # customers, catching them when they are home for lunch or dinner. 1481 1482 # From Paul Eggert (2001-03-05): 1483 # For now, we'll just record the time in Stanley, since we have no 1484 # better info. 1485 1486 # From Steffen Thorsen (2011-04-01): 1487 # The Falkland Islands will not turn back clocks this winter, but stay on 1488 # daylight saving time. 1489 # 1490 # One source: 1491 # <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3"> 1492 # http://www.falklandnews.com/public/story.cfm?get=5914&source=3 1493 # </a> 1494 # 1495 # We have gotten this confirmed by a clerk of the legislative assembly: 1496 # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the 1497 # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 1498 # hours) on the first Sunday of September at 0200hrs. 1499 # 1500 # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands 1501 # will not revert to local mean time, but clocks will remain on Summer 1502 # time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term 1503 # change to local time following the trial period will be notified. 1504 # 1505 # From Andrew Newman (2012-02-24) 1506 # A letter from Justin McPhee, Chief Executive, 1507 # Cable & Wireless Falkland Islands (dated 2012-02-22) 1508 # states... 1509 # The current Atlantic/Stanley entry under South America expects the 1510 # clocks to go back to standard Falklands Time (FKT) on the 15th April. 1511 # The database entry states that in 2011 Stanley was staying on fixed 1512 # summer time on a trial basis only. FIG need to contact IANA and/or 1513 # the maintainers of the database to inform them we're adopting 1514 # the same policy this year and suggest recommendations for future years. 1515 # 1516 # For now we will assume permanent summer time for the Falklands 1517 # until advised differently (to apply for 2012 and beyond, after the 2011 1518 # experiment was apparently successful.) 1519 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1520 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S 1521 Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 1522 Rule Falk 1939 only - Oct 1 0:00 1:00 S 1523 Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S 1524 Rule Falk 1943 only - Jan 1 0:00 0 - 1525 Rule Falk 1983 only - Sep lastSun 0:00 1:00 S 1526 Rule Falk 1984 1985 - Apr lastSun 0:00 0 - 1527 Rule Falk 1984 only - Sep 16 0:00 1:00 S 1528 Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S 1529 Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 1530 Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - 1531 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S 1532 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1533 Zone Atlantic/Stanley -3:51:24 - LMT 1890 1534 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 1535 -4:00 Falk FK%sT 1983 May # Falkland Is Time 1536 -3:00 Falk FK%sT 1985 Sep 15 1537 -4:00 Falk FK%sT 2010 Sep 5 02:00 1538 -3:00 - FKST 1539 1540 # French Guiana 1541 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1542 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1543 -4:00 - GFT 1967 Oct # French Guiana Time 1544 -3:00 - GFT 1545 1546 # Guyana 1547 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1548 Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 1549 -3:45 - GBGT 1966 May 26 # Br Guiana Time 1550 -3:45 - GYT 1975 Jul 31 # Guyana Time 1551 -3:00 - GYT 1991 1552 # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 1553 -4:00 - GYT 1554 1555 # Paraguay 1556 # 1557 # From Paul Eggert (2006-03-22): 1558 # Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, 1559 # and autumn transitions are from 00:00 -> 23:00. Go with pre-1999 1560 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. 1561 # 1562 # From Waldemar Villamayor-Venialbo (2013-09-20): 1563 # No time of the day is established for the adjustment, so people normally 1564 # adjust their clocks at 0 hour of the given dates. 1565 # 1566 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1567 Rule Para 1975 1988 - Oct 1 0:00 1:00 S 1568 Rule Para 1975 1978 - Mar 1 0:00 0 - 1569 Rule Para 1979 1991 - Apr 1 0:00 0 - 1570 Rule Para 1989 only - Oct 22 0:00 1:00 S 1571 Rule Para 1990 only - Oct 1 0:00 1:00 S 1572 Rule Para 1991 only - Oct 6 0:00 1:00 S 1573 Rule Para 1992 only - Mar 1 0:00 0 - 1574 Rule Para 1992 only - Oct 5 0:00 1:00 S 1575 Rule Para 1993 only - Mar 31 0:00 0 - 1576 Rule Para 1993 1995 - Oct 1 0:00 1:00 S 1577 Rule Para 1994 1995 - Feb lastSun 0:00 0 - 1578 Rule Para 1996 only - Mar 1 0:00 0 - 1579 # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 1580 # From Steffen Thorsen (2000-10-02): 1581 # I have three independent reports that Paraguay changed to DST this Sunday 1582 # (10-01). 1583 # 1584 # Translated by Gwillim Law (2001-02-27) from 1585 # <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm"> 1586 # Noticias, a daily paper in Asuncion, Paraguay (2000-10-01) 1587 # </a>: 1588 # Starting at 0:00 today, the clock will be set forward 60 minutes, in 1589 # fulfillment of Decree No. 7,273 of the Executive Power.... The time change 1590 # system has been operating for several years. Formerly there was a separate 1591 # decree each year; the new law has the same effect, but permanently. Every 1592 # year, the time will change on the first Sunday of October; likewise, the 1593 # clock will be set back on the first Sunday of March. 1594 # 1595 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S 1596 # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 1597 Rule Para 1997 only - Feb lastSun 0:00 0 - 1598 # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 1599 # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 1600 Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - 1601 # From Rives McDow (2002-02-28): 1602 # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the 1603 # dst method to be from the first Sunday in September to the first Sunday in 1604 # April. 1605 Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - 1606 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S 1607 # 1608 # From Jesper Norgaard Welen (2005-01-02): 1609 # There are several sources that claim that Paraguay made 1610 # a timezone rule change in autumn 2004. 1611 # From Steffen Thorsen (2005-01-05): 1612 # Decree 1,867 (2004-03-05) 1613 # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13) 1614 # <http://www.presidencia.gov.py/decretos/D1867.pdf> 1615 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S 1616 Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - 1617 # From Carlos Raul Perasso (2010-02-18): 1618 # By decree number 3958 issued yesterday ( 1619 # <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf"> 1620 # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf 1621 # </a> 1622 # ) 1623 # Paraguay changes its DST schedule, postponing the March rule to April and 1624 # modifying the October date. The decree reads: 1625 # ... 1626 # Art. 1. It is hereby established that from the second Sunday of the month of 1627 # April of this year (2010), the official time is to be set back 60 minutes, 1628 # and that on the first Sunday of the month of October, it is to be set 1629 # forward 60 minutes, in all the territory of the Paraguayan Republic. 1630 # ... 1631 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S 1632 Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - 1633 # 1634 # From Steffen Thorsen (2013-03-07): 1635 # Paraguay will end DST on 2013-03-24 00:00.... 1636 # http://www.ande.gov.py/interna.php?id=1075 1637 # 1638 # From Carlos Raul Perasso (2013-03-15): 1639 # The change in Paraguay is now final. Decree number 10780 1640 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf 1641 # From Carlos Raul Perasso (2014-02-28): 1642 # Decree 1264 can be found at: 1643 # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf 1644 Rule Para 2013 max - Mar Sun>=22 0:00 0 - 1645 1646 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1647 Zone America/Asuncion -3:50:40 - LMT 1890 1648 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time 1649 -4:00 - PYT 1972 Oct # Paraguay Time 1650 -3:00 - PYT 1974 Apr 1651 -4:00 Para PY%sT 1652 1653 # Peru 1654 # 1655 # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> 1656 # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> 1657 # When we were in Peru in 1985-1986, they apparently switched over 1658 # sometime between December 29 and January 3 while we were on the Amazon. 1659 # 1660 # From Paul Eggert (2006-03-22): 1661 # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 1662 1663 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1664 Rule Peru 1938 only - Jan 1 0:00 1:00 S 1665 Rule Peru 1938 only - Apr 1 0:00 0 - 1666 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S 1667 Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 1668 Rule Peru 1986 1987 - Jan 1 0:00 1:00 S 1669 Rule Peru 1986 1987 - Apr 1 0:00 0 - 1670 Rule Peru 1990 only - Jan 1 0:00 1:00 S 1671 Rule Peru 1990 only - Apr 1 0:00 0 - 1672 # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 1673 Rule Peru 1994 only - Jan 1 0:00 1:00 S 1674 Rule Peru 1994 only - Apr 1 0:00 0 - 1675 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1676 Zone America/Lima -5:08:12 - LMT 1890 1677 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 1678 -5:00 Peru PE%sT # Peru Time 1679 1680 # South Georgia 1681 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1682 Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 1683 -2:00 - GST # South Georgia Time 1684 1685 # South Sandwich Is 1686 # uninhabited; scientific personnel have wintered 1687 1688 # Suriname 1689 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1690 Zone America/Paramaribo -3:40:40 - LMT 1911 1691 -3:40:52 - PMT 1935 # Paramaribo Mean Time 1692 -3:40:36 - PMT 1945 Oct # The capital moved? 1693 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time 1694 -3:30 - SRT 1984 Oct # Suriname Time 1695 -3:00 - SRT 1696 1697 # Trinidad and Tobago 1698 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1699 Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 1700 -4:00 - AST 1701 1702 # These all agree with Trinidad and Tobago since 1970. 1703 Link America/Port_of_Spain America/Anguilla 1704 Link America/Port_of_Spain America/Dominica 1705 Link America/Port_of_Spain America/Grenada 1706 Link America/Port_of_Spain America/Guadeloupe 1707 Link America/Port_of_Spain America/Marigot # St Martin (French part) 1708 Link America/Port_of_Spain America/Montserrat 1709 Link America/Port_of_Spain America/St_Barthelemy 1710 Link America/Port_of_Spain America/St_Kitts # St Kitts & Nevis 1711 Link America/Port_of_Spain America/St_Lucia 1712 Link America/Port_of_Spain America/St_Thomas # Virgin Islands (US) 1713 Link America/Port_of_Spain America/St_Vincent 1714 Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) 1715 1716 # Uruguay 1717 # From Paul Eggert (1993-11-18): 1718 # Uruguay wins the prize for the strangest peacetime manipulation of the rules. 1719 # From Shanks & Pottenger: 1720 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1721 # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. 1722 Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS 1723 Rule Uruguay 1924 1926 - Apr 1 0:00 0 - 1724 Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS 1725 Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS 1726 # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. 1727 Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - 1728 Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS 1729 Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - 1730 # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. 1731 Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS 1732 # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, 1733 # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. 1734 Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS 1735 Rule Uruguay 1942 only - Jan 1 0:00 0 - 1736 Rule Uruguay 1942 only - Dec 14 0:00 1:00 S 1737 Rule Uruguay 1943 only - Mar 14 0:00 0 - 1738 Rule Uruguay 1959 only - May 24 0:00 1:00 S 1739 Rule Uruguay 1959 only - Nov 15 0:00 0 - 1740 Rule Uruguay 1960 only - Jan 17 0:00 1:00 S 1741 Rule Uruguay 1960 only - Mar 6 0:00 0 - 1742 Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S 1743 Rule Uruguay 1965 only - Sep 26 0:00 0 - 1744 Rule Uruguay 1966 1967 - Oct 31 0:00 0 - 1745 Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS 1746 Rule Uruguay 1968 1970 - Dec 2 0:00 0 - 1747 Rule Uruguay 1972 only - Apr 24 0:00 1:00 S 1748 Rule Uruguay 1972 only - Aug 15 0:00 0 - 1749 Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS 1750 Rule Uruguay 1974 only - Dec 22 0:00 1:00 S 1751 Rule Uruguay 1976 only - Oct 1 0:00 0 - 1752 Rule Uruguay 1977 only - Dec 4 0:00 1:00 S 1753 Rule Uruguay 1978 only - Apr 1 0:00 0 - 1754 Rule Uruguay 1979 only - Oct 1 0:00 1:00 S 1755 Rule Uruguay 1980 only - May 1 0:00 0 - 1756 Rule Uruguay 1987 only - Dec 14 0:00 1:00 S 1757 Rule Uruguay 1988 only - Mar 14 0:00 0 - 1758 Rule Uruguay 1988 only - Dec 11 0:00 1:00 S 1759 Rule Uruguay 1989 only - Mar 12 0:00 0 - 1760 Rule Uruguay 1989 only - Oct 29 0:00 1:00 S 1761 # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, 1762 # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. 1763 Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - 1764 Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S 1765 Rule Uruguay 1992 only - Oct 18 0:00 1:00 S 1766 Rule Uruguay 1993 only - Feb 28 0:00 0 - 1767 # From Eduardo Cota (2004-09-20): 1768 # The uruguayan government has decreed a change in the local time.... 1769 # http://www.presidencia.gub.uy/decretos/2004091502.htm 1770 Rule Uruguay 2004 only - Sep 19 0:00 1:00 S 1771 # From Steffen Thorsen (2005-03-11): 1772 # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 1773 # save energy ... it was postponed two weeks.... 1774 # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm 1775 Rule Uruguay 2005 only - Mar 27 2:00 0 - 1776 # From Eduardo Cota (2005-09-27): 1777 # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF 1778 # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at 1779 # 02:00 local time, official time in Uruguay will be at GMT -2. 1780 Rule Uruguay 2005 only - Oct 9 2:00 1:00 S 1781 Rule Uruguay 2006 only - Mar 12 2:00 0 - 1782 # From Jesper Norgaard Welen (2006-09-06): 1783 # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF 1784 Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S 1785 Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - 1786 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1787 Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 1788 -3:44:44 - MMT 1920 May 1 # Montevideo MT 1789 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time 1790 -3:00 Uruguay UY%sT 1791 1792 # Venezuela 1793 # 1794 # From John Stainforth (2007-11-28): 1795 # ... the change for Venezuela originally expected for 2007-12-31 has 1796 # been brought forward to 2007-12-09. The official announcement was 1797 # published today in the "Gaceta Oficial de la Republica Bolivariana 1798 # de Venezuela, numero 38.819" (official document for all laws or 1799 # resolution publication) 1800 # http://www.globovision.com/news.php?nid=72208 1801 1802 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1803 Zone America/Caracas -4:27:44 - LMT 1890 1804 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 1805 -4:30 - VET 1965 # Venezuela Time 1806 -4:00 - VET 2007 Dec 9 03:00 1807 -4:30 - VET