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 (2013-02-21): 478 # Milne says Cordoba time was -4:16:48.2. Round to the nearest second. 479 480 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 481 # 482 # Buenos Aires (BA), Capital Federal (CF), 483 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 484 -4:16:48 - CMT 1920 May # Cordoba Mean Time 485 -4:00 - ART 1930 Dec 486 -4:00 Arg AR%sT 1969 Oct 5 487 -3:00 Arg AR%sT 1999 Oct 3 488 -4:00 Arg AR%sT 2000 Mar 3 489 -3:00 Arg AR%sT 490 # 491 # Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), 492 # Chaco (CC), Formosa (FM), Santiago del Estero (SE) 493 # 494 # Shanks & Pottenger also make the following claims, which we haven't verified: 495 # - Formosa switched to -3:00 on 1991-01-07. 496 # - Misiones switched to -3:00 on 1990-12-29. 497 # - Chaco switched to -3:00 on 1991-01-04. 498 # - Santiago del Estero switched to -4:00 on 1991-04-01, 499 # then to -3:00 on 1991-04-26. 500 # 501 Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 502 -4:16:48 - CMT 1920 May 503 -4:00 - ART 1930 Dec 504 -4:00 Arg AR%sT 1969 Oct 5 505 -3:00 Arg AR%sT 1991 Mar 3 506 -4:00 - WART 1991 Oct 20 507 -3:00 Arg AR%sT 1999 Oct 3 508 -4:00 Arg AR%sT 2000 Mar 3 509 -3:00 Arg AR%sT 510 # 511 # Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) 512 Zone America/Argentina/Salta -4:21:40 - 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 2008 Oct 18 521 -3:00 - ART 522 # 523 # Tucuman (TM) 524 Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 525 -4:16:48 - CMT 1920 May 526 -4:00 - ART 1930 Dec 527 -4:00 Arg AR%sT 1969 Oct 5 528 -3:00 Arg AR%sT 1991 Mar 3 529 -4:00 - WART 1991 Oct 20 530 -3:00 Arg AR%sT 1999 Oct 3 531 -4:00 Arg AR%sT 2000 Mar 3 532 -3:00 - ART 2004 Jun 1 533 -4:00 - WART 2004 Jun 13 534 -3:00 Arg AR%sT 535 # 536 # La Rioja (LR) 537 Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 538 -4:16:48 - CMT 1920 May 539 -4:00 - ART 1930 Dec 540 -4:00 Arg AR%sT 1969 Oct 5 541 -3:00 Arg AR%sT 1991 Mar 1 542 -4:00 - WART 1991 May 7 543 -3:00 Arg AR%sT 1999 Oct 3 544 -4:00 Arg AR%sT 2000 Mar 3 545 -3:00 - ART 2004 Jun 1 546 -4:00 - WART 2004 Jun 20 547 -3:00 Arg AR%sT 2008 Oct 18 548 -3:00 - ART 549 # 550 # San Juan (SJ) 551 Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 552 -4:16:48 - CMT 1920 May 553 -4:00 - ART 1930 Dec 554 -4:00 Arg AR%sT 1969 Oct 5 555 -3:00 Arg AR%sT 1991 Mar 1 556 -4:00 - WART 1991 May 7 557 -3:00 Arg AR%sT 1999 Oct 3 558 -4:00 Arg AR%sT 2000 Mar 3 559 -3:00 - ART 2004 May 31 560 -4:00 - WART 2004 Jul 25 561 -3:00 Arg AR%sT 2008 Oct 18 562 -3:00 - ART 563 # 564 # Jujuy (JY) 565 Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 566 -4:16:48 - CMT 1920 May 567 -4:00 - ART 1930 Dec 568 -4:00 Arg AR%sT 1969 Oct 5 569 -3:00 Arg AR%sT 1990 Mar 4 570 -4:00 - WART 1990 Oct 28 571 -4:00 1:00 WARST 1991 Mar 17 572 -4:00 - WART 1991 Oct 6 573 -3:00 1:00 ARST 1992 574 -3:00 Arg AR%sT 1999 Oct 3 575 -4:00 Arg AR%sT 2000 Mar 3 576 -3:00 Arg AR%sT 2008 Oct 18 577 -3:00 - ART 578 # 579 # Catamarca (CT), Chubut (CH) 580 Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 581 -4:16:48 - CMT 1920 May 582 -4:00 - ART 1930 Dec 583 -4:00 Arg AR%sT 1969 Oct 5 584 -3:00 Arg AR%sT 1991 Mar 3 585 -4:00 - WART 1991 Oct 20 586 -3:00 Arg AR%sT 1999 Oct 3 587 -4:00 Arg AR%sT 2000 Mar 3 588 -3:00 - ART 2004 Jun 1 589 -4:00 - WART 2004 Jun 20 590 -3:00 Arg AR%sT 2008 Oct 18 591 -3:00 - ART 592 # 593 # Mendoza (MZ) 594 Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 595 -4:16:48 - CMT 1920 May 596 -4:00 - ART 1930 Dec 597 -4:00 Arg AR%sT 1969 Oct 5 598 -3:00 Arg AR%sT 1990 Mar 4 599 -4:00 - WART 1990 Oct 15 600 -4:00 1:00 WARST 1991 Mar 1 601 -4:00 - WART 1991 Oct 15 602 -4:00 1:00 WARST 1992 Mar 1 603 -4:00 - WART 1992 Oct 18 604 -3:00 Arg AR%sT 1999 Oct 3 605 -4:00 Arg AR%sT 2000 Mar 3 606 -3:00 - ART 2004 May 23 607 -4:00 - WART 2004 Sep 26 608 -3:00 Arg AR%sT 2008 Oct 18 609 -3:00 - ART 610 # 611 # San Luis (SL) 612 613 Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - 614 Rule SanLuis 2007 2009 - Oct Sun>=8 0:00 1:00 S 615 616 Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 617 -4:16:48 - CMT 1920 May 618 -4:00 - ART 1930 Dec 619 -4:00 Arg AR%sT 1969 Oct 5 620 -3:00 Arg AR%sT 1990 621 -3:00 1:00 ARST 1990 Mar 14 622 -4:00 - WART 1990 Oct 15 623 -4:00 1:00 WARST 1991 Mar 1 624 -4:00 - WART 1991 Jun 1 625 -3:00 - ART 1999 Oct 3 626 -4:00 1:00 WARST 2000 Mar 3 627 -3:00 - ART 2004 May 31 628 -4:00 - WART 2004 Jul 25 629 -3:00 Arg AR%sT 2008 Jan 21 630 -4:00 SanLuis WAR%sT 631 # 632 # Santa Cruz (SC) 633 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 634 -4:16:48 - CMT 1920 May # Cordoba Mean Time 635 -4:00 - ART 1930 Dec 636 -4:00 Arg AR%sT 1969 Oct 5 637 -3:00 Arg AR%sT 1999 Oct 3 638 -4:00 Arg AR%sT 2000 Mar 3 639 -3:00 - ART 2004 Jun 1 640 -4:00 - WART 2004 Jun 20 641 -3:00 Arg AR%sT 2008 Oct 18 642 -3:00 - ART 643 # 644 # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) 645 Zone America/Argentina/Ushuaia -4:33:12 - 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 May 30 652 -4:00 - WART 2004 Jun 20 653 -3:00 Arg AR%sT 2008 Oct 18 654 -3:00 - ART 655 656 # Aruba 657 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 658 Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad 659 -4:30 - ANT 1965 # Netherlands Antilles Time 660 -4:00 - AST 661 662 # Bolivia 663 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 664 Zone America/La_Paz -4:32:36 - LMT 1890 665 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 666 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 667 -4:00 - BOT # Bolivia Time 668 669 # Brazil 670 671 # From Paul Eggert (1993-11-18): 672 # The mayor of Rio recently attempted to change the time zone rules 673 # just in his city, in order to leave more summer time for the tourist trade. 674 # The rule change lasted only part of the day; 675 # the federal government refused to follow the city's rules, and business 676 # was in a chaos, so the mayor backed down that afternoon. 677 678 # From IATA SSIM (1996-02): 679 # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 680 # Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), 681 # Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), 682 # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 683 # [The last three states are new to this issue of the IATA SSIM.] 684 685 # From Gwillim Law (1996-10-07): 686 # Geography, history (Tocantins was part of Goias until 1989), and other 687 # sources of time zone information lead me to believe that AL, SE, and TO were 688 # always in BR1, and so the only change was whether or not they observed DST.... 689 # The earliest issue of the SSIM I have is 2/91. Each issue from then until 690 # 9/95 says that DST is observed only in the ten states I quoted from 9/95, 691 # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 692 # (UTC-4).... The other two time zones given for Brazil are BR3, which is 693 # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 694 # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 695 # become part of the state of Pernambuco). The boundary between BR1 and BR2 696 # has never been clearly stated. They've simply been called East and West. 697 # However, some conclusions can be drawn from another IATA manual: the Airline 698 # Coding Directory, which lists close to 400 airports in Brazil. For each 699 # airport it gives a time zone which is coded to the SSIM. From that 700 # information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), 701 # Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do 702 # Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. 703 704 # From Marcos Tadeu (1998-09-27): 705 # <a href="http://pcdsh01.on.br/verao1.html"> 706 # Brazilian official page 707 # </a> 708 709 # From Jesper Norgaard (2000-11-03): 710 # [For an official list of which regions in Brazil use which time zones, see:] 711 # http://pcdsh01.on.br/Fusbr.htm 712 # http://pcdsh01.on.br/Fusbrhv.htm 713 714 # From Celso Doria via David Madeo (2002-10-09): 715 # The reason for the delay this year has to do with elections in Brazil. 716 # 717 # Unlike in the United States, elections in Brazil are 100% computerized and 718 # the results are known almost immediately. Yesterday, it was the first 719 # round of the elections when 115 million Brazilians voted for President, 720 # Governor, Senators, Federal Deputies, and State Deputies. Nobody is 721 # counting (or re-counting) votes anymore and we know there will be a second 722 # round for the Presidency and also for some Governors. The 2nd round will 723 # take place on October 27th. 724 # 725 # The reason why the DST will only begin November 3rd is that the thousands 726 # of electoral machines used cannot have their time changed, and since the 727 # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 728 # the Government decided to postpone DST, instead of changing the Constitution 729 # (maybe, for the next elections, it will be possible to change the clock)... 730 731 # From Rodrigo Severo (2004-10-04): 732 # It's just the biannual change made necessary by the much hyped, supposedly 733 # modern Brazilian eletronic voting machines which, apparently, can't deal 734 # with a time change between the first and the second rounds of the elections. 735 736 # From Steffen Thorsen (2007-09-20): 737 # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 738 # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 739 740 # From Paul Schulze (2008-06-24): 741 # ...by law number 11.662 of April 24, 2008 (published in the "Diario 742 # Oficial da Uniao"...) in Brazil there are changes in the timezones, 743 # effective today (00:00am at June 24, 2008) as follows: 744 # 745 # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the 746 # part of the Amazonas state that had this timezone now being put to the 747 # timezone UTC+4 748 # b) The whole Para state now is put at timezone UTC+3, instead of just 749 # part of it, as was before. 750 # 751 # This change follows a proposal of senator Tiao Viana of Acre state, that 752 # proposed it due to concerns about open television channels displaying 753 # programs inappropriate to youths in the states that had the timezone 754 # UTC+5 too early in the night. In the occasion, some more corrections 755 # were proposed, trying to unify the timezones of any given state. This 756 # change modifies timezone rules defined in decree 2.784 of 18 June, 757 # 1913. 758 759 # From Rodrigo Severo (2008-06-24): 760 # Just correcting the URL: 761 # <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008"> 762 # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 763 # </a> 764 # 765 # As a result of the above Decree I believe the America/Rio_Branco 766 # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 767 # be created to represent the...west side of the Para State. I 768 # suggest this new timezone be called Santarem as the most 769 # important/populated city in the affected area. 770 # 771 # This new timezone would be the same as the Rio_Branco timezone up to 772 # the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 773 774 # From Alex Krivenyshev (2008-06-24): 775 # This is a quick reference page for New and Old Brazil Time Zones map. 776 # <a href="http://www.worldtimezone.com/brazil-time-new-old.php"> 777 # http://www.worldtimezone.com/brazil-time-new-old.php 778 # </a> 779 # 780 # - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05 781 # (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western 782 # part of Par state is moving to one timezone UTC- 03 (from UTC -04). 783 784 # From Paul Eggert (2002-10-10): 785 # The official decrees referenced below are mostly taken from 786 # <a href="http://pcdsh01.on.br/DecHV.html"> 787 # Decretos sobre o Horario de Verao no Brasil 788 # </a>. 789 790 # From Steffen Thorsen (2008-08-29): 791 # As announced by the government and many newspapers in Brazil late 792 # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 793 # it will end on 2009-02-15 (current rule for Brazil is fine). Based on 794 # past years experience with the elections, there was a good chance that 795 # the start was postponed to November, but it did not happen this year. 796 # 797 # It has not yet been posted to http://pcdsh01.on.br/DecHV.html 798 # 799 # An official page about it: 800 # <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"> 801 # http://www.mme.gov.br/site/news/detail.do?newsId=16722 802 # </a> 803 # Note that this link does not always work directly, but must be accessed 804 # by going to 805 # <a href="http://www.mme.gov.br/first"> 806 # http://www.mme.gov.br/first 807 # </a> 808 # 809 # One example link that works directly: 810 # <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54"> 811 # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 812 # (Portuguese) 813 # </a> 814 # 815 # We have a written a short article about it as well: 816 # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"> 817 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 818 # </a> 819 # 820 # From Alexander Krivenyshev (2011-10-04): 821 # State Bahia will return to Daylight savings time this year after 8 years off. 822 # The announcement was made by Governor Jaques Wagner in an interview to a 823 # television station in Salvador. 824 825 # In Portuguese: 826 # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html"> 827 # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html 828 # </a> and 829 # <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html"> 830 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html 831 # </a> 832 833 # From Guilherme Bernardes Rodrigues (2011-10-07): 834 # There is news in the media, however there is still no decree about it. 835 # I just send a e-mail to Zulmira Brandao at 836 # <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the 837 # official agency about time in Brazil, and she confirmed that the old rule is 838 # still in force. 839 840 # From Guilherme Bernardes Rodrigues (2011-10-14) 841 # It's official, the President signed a decree that includes Bahia in summer 842 # time. 843 # [ and in a second message (same day): ] 844 # I found the decree. 845 # 846 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 847 # Link : 848 # <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6"> 849 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 850 # </a> 851 852 # From Kelley Cook (2012-10-16): 853 # The governor of state of Bahia in Brazil announced on Thursday that 854 # due to public pressure, he is reversing the DST policy they implemented 855 # last year and will not be going to Summer Time on October 21st.... 856 # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia 857 858 # From Rodrigo Severo (2012-10-16): 859 # Tocantins state will have DST. 860 # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html 861 862 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 863 # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) 864 # Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10) 865 Rule Brazil 1931 only - Oct 3 11:00 1:00 S 866 Rule Brazil 1932 1933 - Apr 1 0:00 0 - 867 Rule Brazil 1932 only - Oct 3 0:00 1:00 S 868 # Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10) 869 # revoked DST. 870 # Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24) 871 # Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13) 872 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S 873 Rule Brazil 1950 only - Apr 16 1:00 0 - 874 Rule Brazil 1951 1952 - Apr 1 0:00 0 - 875 # Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24) 876 Rule Brazil 1953 only - Mar 1 0:00 0 - 877 # Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30) 878 # revoked DST. 879 # Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18) 880 # established DST from 1963-10-23 00:00 to 1964-02-29 00:00 881 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 882 # Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03) 883 # extended the above decree to all of the national territory on 12-09. 884 Rule Brazil 1963 only - Dec 9 0:00 1:00 S 885 # Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25) 886 # extended summer time by one day to 1964-03-01 00:00 (start of school). 887 Rule Brazil 1964 only - Mar 1 0:00 0 - 888 # Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27) 889 Rule Brazil 1965 only - Jan 31 0:00 1:00 S 890 Rule Brazil 1965 only - Mar 31 0:00 0 - 891 # Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22) 892 Rule Brazil 1965 only - Dec 1 0:00 1:00 S 893 # Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18) 894 Rule Brazil 1966 1968 - Mar 1 0:00 0 - 895 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S 896 # Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15) 897 # revoked DST. 898 # Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27) 899 Rule Brazil 1985 only - Nov 2 0:00 1:00 S 900 # Decree 92,310 (1986-01-21) 901 # Decree 92,463 (1986-03-13) 902 Rule Brazil 1986 only - Mar 15 0:00 0 - 903 # Decree 93,316 (1986-10-01) 904 Rule Brazil 1986 only - Oct 25 0:00 1:00 S 905 Rule Brazil 1987 only - Feb 14 0:00 0 - 906 # Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22) 907 Rule Brazil 1987 only - Oct 25 0:00 1:00 S 908 Rule Brazil 1988 only - Feb 7 0:00 0 - 909 # Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12) 910 # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 911 Rule Brazil 1988 only - Oct 16 0:00 1:00 S 912 Rule Brazil 1989 only - Jan 29 0:00 0 - 913 # Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21) 914 # with the same exceptions 915 Rule Brazil 1989 only - Oct 15 0:00 1:00 S 916 Rule Brazil 1990 only - Feb 11 0:00 0 - 917 # Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17) 918 # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 919 # Decree 99,629 (1990-10-19) adds BA, MT. 920 Rule Brazil 1990 only - Oct 21 0:00 1:00 S 921 Rule Brazil 1991 only - Feb 17 0:00 0 - 922 # <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25) 923 # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 924 Rule Brazil 1991 only - Oct 20 0:00 1:00 S 925 Rule Brazil 1992 only - Feb 9 0:00 0 - 926 # <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16) 927 # adopted by same states. 928 Rule Brazil 1992 only - Oct 25 0:00 1:00 S 929 Rule Brazil 1993 only - Jan 31 0:00 0 - 930 # Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28) 931 # adopted by same states, plus AM. 932 # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22; 933 # web page corrected 2004-01-07) adopted by same states, minus AM. 934 # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) 935 # adopted by same states, plus MT and TO. 936 # Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13) 937 # adds AL, SE. 938 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S 939 Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 940 Rule Brazil 1996 only - Feb 11 0:00 0 - 941 # Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04) 942 # adopted by same states, minus AL, SE. 943 Rule Brazil 1996 only - Oct 6 0:00 1:00 S 944 Rule Brazil 1997 only - Feb 16 0:00 0 - 945 # From Daniel C. Sobral (1998-02-12): 946 # In 1997, the DS began on October 6. The stated reason was that 947 # because international television networks ignored Brazil's policy on DS, 948 # they bought the wrong times on satellite for coverage of Pope's visit. 949 # This year, the ending date of DS was postponed to March 1 950 # to help dealing with the shortages of electric power. 951 # 952 # Decree 2,317 (1997-09-04), adopted by same states. 953 Rule Brazil 1997 only - Oct 6 0:00 1:00 S 954 # Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a> 955 # (1998-02-10) 956 Rule Brazil 1998 only - Mar 1 0:00 0 - 957 # Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11) 958 # adopted by the same states as before. 959 Rule Brazil 1998 only - Oct 11 0:00 1:00 S 960 Rule Brazil 1999 only - Feb 21 0:00 0 - 961 # Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a> 962 # (1999-08-23) adopted by same states. 963 # Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30) 964 # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 965 Rule Brazil 1999 only - Oct 3 0:00 1:00 S 966 Rule Brazil 2000 only - Feb 27 0:00 0 - 967 # Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06) 968 # adopted by the same states as before. 969 # Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13) 970 # repeals DST in PE and RR, effective 2000-10-15 00:00. 971 # Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17) 972 # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 973 # Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a> 974 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 975 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S 976 Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 977 # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 978 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a> 979 Rule Brazil 2002 only - Nov 3 0:00 1:00 S 980 # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 981 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a> 982 Rule Brazil 2003 only - Oct 19 0:00 1:00 S 983 # Decree 5,223 (2004-10-01) reestablishes DST in MT. 984 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a> 985 Rule Brazil 2004 only - Nov 2 0:00 1:00 S 986 # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), 987 # adopted by the same states as before. 988 Rule Brazil 2005 only - Oct 16 0:00 1:00 S 989 # Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03), 990 # adopted by the same states as before. 991 Rule Brazil 2006 only - Nov 5 0:00 1:00 S 992 Rule Brazil 2007 only - Feb 25 0:00 0 - 993 # Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), 994 # adopted by the same states as before. 995 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S 996 # From Frederico A. C. Neves (2008-09-10): 997 # Acording to this decree 998 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"> 999 # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 1000 # </a> 1001 # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 1002 # 3rd Feb Sunday. There is an exception on the return date when this is 1003 # the Carnival Sunday then the return date will be the next Sunday... 1004 Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S 1005 Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 1006 Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - 1007 Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 1008 Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - 1009 Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 1010 Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - 1011 Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 1012 Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - 1013 Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 1014 Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - 1015 Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 1016 Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - 1017 # From Arthur David Olson (2008-09-29): 1018 # The next is wrong in some years but is better than nothing. 1019 Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - 1020 1021 # The latest ruleset listed above says that the following states observe DST: 1022 # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 1023 1024 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1025 # 1026 # Fernando de Noronha (administratively part of PE) 1027 Zone America/Noronha -2:09:40 - LMT 1914 1028 -2:00 Brazil FN%sT 1990 Sep 17 1029 -2:00 - FNT 1999 Sep 30 1030 -2:00 Brazil FN%sT 2000 Oct 15 1031 -2:00 - FNT 2001 Sep 13 1032 -2:00 Brazil FN%sT 2002 Oct 1 1033 -2:00 - FNT 1034 # Other Atlantic islands have no permanent settlement. 1035 # These include Trindade and Martin Vaz (administratively part of ES), 1036 # Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE). 1037 # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 1038 # it also included the Penedos. 1039 # 1040 # Amapa (AP), east Para (PA) 1041 # East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu. 1042 # The division between east and west Para is the river Xingu. 1043 # In the north a very small part from the river Javary (now Jari I guess, 1044 # the border with Amapa) to the Amazon, then to the Xingu. 1045 Zone America/Belem -3:13:56 - LMT 1914 1046 -3:00 Brazil BR%sT 1988 Sep 12 1047 -3:00 - BRT 1048 # 1049 # west Para (PA) 1050 # West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. 1051 Zone America/Santarem -3:38:48 - LMT 1914 1052 -4:00 Brazil AM%sT 1988 Sep 12 1053 -4:00 - AMT 2008 Jun 24 00:00 1054 -3:00 - BRT 1055 # 1056 # Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), 1057 # Paraiba (PB) 1058 Zone America/Fortaleza -2:34:00 - LMT 1914 1059 -3:00 Brazil BR%sT 1990 Sep 17 1060 -3:00 - BRT 1999 Sep 30 1061 -3:00 Brazil BR%sT 2000 Oct 22 1062 -3:00 - BRT 2001 Sep 13 1063 -3:00 Brazil BR%sT 2002 Oct 1 1064 -3:00 - BRT 1065 # 1066 # Pernambuco (PE) (except Atlantic islands) 1067 Zone America/Recife -2:19:36 - LMT 1914 1068 -3:00 Brazil BR%sT 1990 Sep 17 1069 -3:00 - BRT 1999 Sep 30 1070 -3:00 Brazil BR%sT 2000 Oct 15 1071 -3:00 - BRT 2001 Sep 13 1072 -3:00 Brazil BR%sT 2002 Oct 1 1073 -3:00 - BRT 1074 # 1075 # Tocantins (TO) 1076 Zone America/Araguaina -3:12:48 - LMT 1914 1077 -3:00 Brazil BR%sT 1990 Sep 17 1078 -3:00 - BRT 1995 Sep 14 1079 -3:00 Brazil BR%sT 2003 Sep 24 1080 -3:00 - BRT 2012 Oct 21 1081 -3:00 Brazil BR%sT 1082 # 1083 # Alagoas (AL), Sergipe (SE) 1084 Zone America/Maceio -2:22:52 - LMT 1914 1085 -3:00 Brazil BR%sT 1990 Sep 17 1086 -3:00 - BRT 1995 Oct 13 1087 -3:00 Brazil BR%sT 1996 Sep 4 1088 -3:00 - BRT 1999 Sep 30 1089 -3:00 Brazil BR%sT 2000 Oct 22 1090 -3:00 - BRT 2001 Sep 13 1091 -3:00 Brazil BR%sT 2002 Oct 1 1092 -3:00 - BRT 1093 # 1094 # Bahia (BA) 1095 # There are too many Salvadors elsewhere, so use America/Bahia instead 1096 # of America/Salvador. 1097 Zone America/Bahia -2:34:04 - LMT 1914 1098 -3:00 Brazil BR%sT 2003 Sep 24 1099 -3:00 - BRT 2011 Oct 16 1100 -3:00 Brazil BR%sT 2012 Oct 21 1101 -3:00 - BRT 1102 # 1103 # Goias (GO), Distrito Federal (DF), Minas Gerais (MG), 1104 # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), 1105 # Santa Catarina (SC), Rio Grande do Sul (RS) 1106 Zone America/Sao_Paulo -3:06:28 - LMT 1914 1107 -3:00 Brazil BR%sT 1963 Oct 23 00:00 1108 -3:00 1:00 BRST 1964 1109 -3:00 Brazil BR%sT 1110 # 1111 # Mato Grosso do Sul (MS) 1112 Zone America/Campo_Grande -3:38:28 - LMT 1914 1113 -4:00 Brazil AM%sT 1114 # 1115 # Mato Grosso (MT) 1116 Zone America/Cuiaba -3:44:20 - LMT 1914 1117 -4:00 Brazil AM%sT 2003 Sep 24 1118 -4:00 - AMT 2004 Oct 1 1119 -4:00 Brazil AM%sT 1120 # 1121 # Rondonia (RO) 1122 Zone America/Porto_Velho -4:15:36 - LMT 1914 1123 -4:00 Brazil AM%sT 1988 Sep 12 1124 -4:00 - AMT 1125 # 1126 # Roraima (RR) 1127 Zone America/Boa_Vista -4:02:40 - LMT 1914 1128 -4:00 Brazil AM%sT 1988 Sep 12 1129 -4:00 - AMT 1999 Sep 30 1130 -4:00 Brazil AM%sT 2000 Oct 15 1131 -4:00 - AMT 1132 # 1133 # east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto 1134 # The great circle line from Tabatinga to Porto Acre divides 1135 # east from west Amazonas. 1136 Zone America/Manaus -4:00:04 - LMT 1914 1137 -4:00 Brazil AM%sT 1988 Sep 12 1138 -4:00 - AMT 1993 Sep 28 1139 -4:00 Brazil AM%sT 1994 Sep 22 1140 -4:00 - AMT 1141 # 1142 # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 1143 # Eirunepe, Envira, Ipixuna 1144 Zone America/Eirunepe -4:39:28 - LMT 1914 1145 -5:00 Brazil AC%sT 1988 Sep 12 1146 -5:00 - ACT 1993 Sep 28 1147 -5:00 Brazil AC%sT 1994 Sep 22 1148 -5:00 - ACT 2008 Jun 24 00:00 1149 -4:00 - AMT 1150 # 1151 # Acre (AC) 1152 Zone America/Rio_Branco -4:31:12 - LMT 1914 1153 -5:00 Brazil AC%sT 1988 Sep 12 1154 -5:00 - ACT 2008 Jun 24 00:00 1155 -4:00 - AMT 1156 1157 # Chile 1158 1159 # From Eduardo Krell (1995-10-19): 1160 # The law says to switch to DST at midnight [24:00] on the second SATURDAY 1161 # of October.... The law is the same for March and October. 1162 # (1998-09-29): 1163 # Because of the drought this year, the government decided to go into 1164 # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 1165 # (unless there's another dry season next year, I guess). 1166 1167 # From Julio I. Pacheco Troncoso (1999-03-18): 1168 # Because of the same drought, the government decided to end DST later, 1169 # on April 3, (one-time change). 1170 1171 # From Oscar van Vlijmen (2006-10-08): 1172 # http://www.horaoficial.cl/cambio.htm 1173 1174 # From Jesper Norgaard Welen (2006-10-08): 1175 # I think that there are some obvious mistakes in the suggested link 1176 # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 1177 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 1178 # (they should have been 1990-09-15 and 1990-09-16 respectively), but 1179 # anyhow it clears up some doubts too. 1180 1181 # From Paul Eggert (2006-12-27): 1182 # The following data for Chile and America/Santiago are from 1183 # <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by 1184 # Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks 1185 # & Pottenger, except with DST transitions after 1932 cloned from 1186 # America/Santiago. The pre-1980 Pacific/Easter data are dubious, 1187 # but we have no other source. 1188 1189 # From German Poo-Caaman~o (2008-03-03): 1190 # Due to drought, Chile extends Daylight Time in three weeks. This 1191 # is one-time change (Saturday 3/29 at 24:00 for America/Santiago 1192 # and Saturday 3/29 at 22:00 for Pacific/Easter) 1193 # The Supreme Decree is located at 1194 # <a href="http://www.shoa.cl/servicios/supremo316.pdf"> 1195 # http://www.shoa.cl/servicios/supremo316.pdf 1196 # </a> 1197 # and the instructions for 2008 are located in: 1198 # <a href="http://www.horaoficial.cl/cambio.htm"> 1199 # http://www.horaoficial.cl/cambio.htm 1200 # </a>. 1201 1202 # From Jose Miguel Garrido (2008-03-05): 1203 # ... 1204 # You could see the announces of the change on 1205 # <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"> 1206 # http://www.shoa.cl/noticias/2008/04hora/hora.htm 1207 # </a>. 1208 1209 # From Angel Chiang (2010-03-04): 1210 # Subject: DST in Chile exceptionally extended to 3 April due to earthquake 1211 # <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098"> 1212 # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 1213 # </a> 1214 # (in Spanish, last paragraph). 1215 # 1216 # This is breaking news. There should be more information available later. 1217 1218 # From Arthur Daivd Olson (2010-03-06): 1219 # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. 1220 1221 # From Glenn Eychaner (2011-03-02): [geychaner@mac.com] 1222 # It appears that the Chilean government has decided to postpone the 1223 # change from summer time to winter time again, by three weeks to April 1224 # 2nd: 1225 # <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651"> 1226 # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 1227 # </a> 1228 # 1229 # This is not yet reflected in the offical "cambio de hora" site, but 1230 # probably will be soon: 1231 # <a href="http://www.horaoficial.cl/cambio.htm"> 1232 # http://www.horaoficial.cl/cambio.htm 1233 # </a> 1234 1235 # From Arthur David Olson (2011-03-02): 1236 # The emol.com article mentions a water shortage as the cause of the 1237 # postponement, which may mean that it's not a permanent change. 1238 1239 # From Glenn Eychaner (2011-03-28): 1240 # The article: 1241 # <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}"> 1242 # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} 1243 # </a> 1244 # 1245 # In English: 1246 # Chile's clocks will go back an hour this year on the 7th of May instead 1247 # of this Saturday. They will go forward again the 3rd Saturday in 1248 # August, not in October as they have since 1968. This is a pilot plan 1249 # which will be reevaluated in 2012. 1250 1251 # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): 1252 # As stated in the website of the Chilean Energy Ministry 1253 # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html 1254 # The Chilean Government has decided to postpone the entrance into winter time 1255 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not 1256 # been yet formalized but it will within the next days. 1257 # Quote from the website communication: 1258 # 1259 # 6. For the year 2012, the dates of entry into winter time will be as follows: 1260 # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at 1261 # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 1262 # of the same day. 1263 # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, 1264 # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be 1265 # 01:00 on September 2. 1266 1267 # From Steffen Thorsen (2013-02-15): 1268 # According to several news sources, Chile has extended DST this year, 1269 # they will end DST later and start DST earlier than planned. They 1270 # hope to save energy. The new end date is 2013-04-28 00:00 and new 1271 # start date is 2013-09-08 00:00.... 1272 # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm 1273 1274 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the 1275 # 'antarctica' file. 1276 1277 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1278 Rule Chile 1927 1932 - Sep 1 0:00 1:00 S 1279 Rule Chile 1928 1932 - Apr 1 0:00 0 - 1280 Rule Chile 1942 only - Jun 1 4:00u 0 - 1281 Rule Chile 1942 only - Aug 1 5:00u 1:00 S 1282 Rule Chile 1946 only - Jul 15 4:00u 1:00 S 1283 Rule Chile 1946 only - Sep 1 3:00u 0:00 - 1284 Rule Chile 1947 only - Apr 1 4:00u 0 - 1285 Rule Chile 1968 only - Nov 3 4:00u 1:00 S 1286 Rule Chile 1969 only - Mar 30 3:00u 0 - 1287 Rule Chile 1969 only - Nov 23 4:00u 1:00 S 1288 Rule Chile 1970 only - Mar 29 3:00u 0 - 1289 Rule Chile 1971 only - Mar 14 3:00u 0 - 1290 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S 1291 Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1292 Rule Chile 1973 only - Sep 30 4:00u 1:00 S 1293 Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S 1294 Rule Chile 1987 only - Apr 12 3:00u 0 - 1295 Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - 1296 Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S 1297 Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S 1298 Rule Chile 1990 only - Mar 18 3:00u 0 - 1299 Rule Chile 1990 only - Sep 16 4:00u 1:00 S 1300 Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1301 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S 1302 Rule Chile 1997 only - Mar 30 3:00u 0 - 1303 Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - 1304 Rule Chile 1998 only - Sep 27 4:00u 1:00 S 1305 Rule Chile 1999 only - Apr 4 3:00u 0 - 1306 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S 1307 Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 1308 # N.B.: the end of March 29 in Chile is March 30 in Universal time, 1309 # which is used below in specifying the transition. 1310 Rule Chile 2008 only - Mar 30 3:00u 0 - 1311 Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - 1312 Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - 1313 Rule Chile 2011 only - May Sun>=2 3:00u 0 - 1314 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S 1315 Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - 1316 Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S 1317 # IATA SSIM anomalies: (1992-02) says 1992-03-14; 1318 # (1996-09) says 1998-03-08. Ignore these. 1319 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1320 Zone America/Santiago -4:42:46 - LMT 1890 1321 -4:42:46 - SMT 1910 # Santiago Mean Time 1322 -5:00 - CLT 1916 Jul 1 # Chile Time 1323 -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time 1324 -4:00 - CLT 1919 Jul 1 # Chile Time 1325 -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time 1326 -5:00 Chile CL%sT 1947 May 22 # Chile Time 1327 -4:00 Chile CL%sT 1328 Zone Pacific/Easter -7:17:44 - LMT 1890 1329 -7:17:28 - EMT 1932 Sep # Easter Mean Time 1330 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time 1331 -6:00 Chile EAS%sT 1332 # 1333 # Sala y Gomez Island is like Pacific/Easter. 1334 # Other Chilean locations, including Juan Fernandez Is, San Ambrosio, 1335 # San Felix, and Antarctic bases, are like America/Santiago. 1336 1337 # Colombia 1338 1339 # Milne gives 4:56:16.4 for Bogota time in 1899; round to nearest. He writes, 1340 # "A variation of fifteen minutes in the public clocks of Bogota is not rare." 1341 1342 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1343 Rule CO 1992 only - May 3 0:00 1:00 S 1344 Rule CO 1993 only - Apr 4 0:00 0 - 1345 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1346 Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 1347 -4:56:16 - BMT 1914 Nov 23 # Bogota Mean Time 1348 -5:00 CO CO%sT # Colombia Time 1349 # Malpelo, Providencia, San Andres 1350 # no information; probably like America/Bogota 1351 1352 # Curacao 1353 1354 # Milne gives 4:35:46.9 for Curacao mean time; round to nearest. 1355 # 1356 # From Paul Eggert (2006-03-22): 1357 # Shanks & Pottenger say that The Bottom and Philipsburg have been at 1358 # -4:00 since standard time was introduced on 1912-03-02; and that 1359 # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 1360 # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 1361 # Saba Island has been like Curacao. 1362 # This all predates our 1970 cutoff, though. 1363 # 1364 # By July 2007 Curacao and St Maarten are planned to become 1365 # associated states within the Netherlands, much like Aruba; 1366 # Bonaire, Saba and St Eustatius would become directly part of the 1367 # Netherlands as Kingdom Islands. This won't affect their time zones 1368 # though, as far as we know. 1369 # 1370 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1371 Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad 1372 -4:30 - ANT 1965 # Netherlands Antilles Time 1373 -4:00 - AST 1374 1375 # From Arthur David Olson (2011-06-15): 1376 # At least for now, use links for places with new iso3166 codes. 1377 # The name "Lower Prince's Quarter" is both longer than fourteen charaters 1378 # and contains an apostrophe; use "Lower_Princes" below. 1379 1380 Link America/Curacao America/Lower_Princes # Sint Maarten 1381 Link America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba 1382 1383 # Ecuador 1384 # 1385 # Milne says the Sentral and South American Telegraph Company used -5:24:15. 1386 # 1387 # From Paul Eggert (2007-03-04): 1388 # Apparently Ecuador had a failed experiment with DST in 1992. 1389 # <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and 1390 # <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both 1391 # talk about "hora Sixto". Leave this alone for now, as we have no data. 1392 # 1393 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1394 Zone America/Guayaquil -5:19:20 - LMT 1890 1395 -5:14:00 - QMT 1931 # Quito Mean Time 1396 -5:00 - ECT # Ecuador Time 1397 Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 1398 -5:00 - ECT 1986 1399 -6:00 - GALT # Galapagos Time 1400 1401 # Falklands 1402 1403 # From Paul Eggert (2006-03-22): 1404 # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 1405 # the IATA gives 1996-09-08. Go with Shanks & Pottenger. 1406 1407 # From Falkland Islands Government Office, London (2001-01-22) 1408 # via Jesper Norgaard: 1409 # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 1410 # April 2001 and advance one hour to summer time at 2 am on Sunday 2 1411 # September. It is anticipated that the clocks will revert back at 2 1412 # am on Sunday 21 April 2002 and advance to summer time at 2 am on 1413 # Sunday 1 September. 1414 1415 # From Rives McDow (2001-02-13): 1416 # 1417 # I have communicated several times with people there, and the last 1418 # time I had communications that was helpful was in 1998. Here is 1419 # what was said then: 1420 # 1421 # "The general rule was that Stanley used daylight saving and the Camp 1422 # did not. However for various reasons many people in the Camp have 1423 # started to use daylight saving (known locally as 'Stanley Time') 1424 # There is no rule as to who uses daylight saving - it is a matter of 1425 # personal choice and so it is impossible to draw a map showing who 1426 # uses it and who does not. Any list would be out of date as soon as 1427 # it was produced. This year daylight saving ended on April 18/19th 1428 # and started again on September 12/13th. I do not know what the rule 1429 # is, but can find out if you like. We do not change at the same time 1430 # as UK or Chile." 1431 # 1432 # I did have in my notes that the rule was "Second Saturday in Sep at 1433 # 0:00 until third Saturday in Apr at 0:00". I think that this does 1434 # not agree in some cases with Shanks; is this true? 1435 # 1436 # Also, there is no mention in the list that some areas in the 1437 # Falklands do not use DST. I have found in my communications there 1438 # that these areas are on the western half of East Falkland and all of 1439 # West Falkland. Stanley is the only place that consistently observes 1440 # DST. Again, as in other places in the world, the farmers don't like 1441 # it. West Falkland is almost entirely sheep farmers. 1442 # 1443 # I know one lady there that keeps a list of which farm keeps DST and 1444 # which doesn't each year. She runs a shop in Stanley, and says that 1445 # the list changes each year. She uses it to communicate to her 1446 # customers, catching them when they are home for lunch or dinner. 1447 1448 # From Paul Eggert (2001-03-05): 1449 # For now, we'll just record the time in Stanley, since we have no 1450 # better info. 1451 1452 # From Steffen Thorsen (2011-04-01): 1453 # The Falkland Islands will not turn back clocks this winter, but stay on 1454 # daylight saving time. 1455 # 1456 # One source: 1457 # <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3"> 1458 # http://www.falklandnews.com/public/story.cfm?get=5914&source=3 1459 # </a> 1460 # 1461 # We have gotten this confirmed by a clerk of the legislative assembly: 1462 # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the 1463 # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 1464 # hours) on the first Sunday of September at 0200hrs. 1465 # 1466 # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands 1467 # will not revert to local mean time, but clocks will remain on Summer 1468 # time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term 1469 # change to local time following the trial period will be notified. 1470 # 1471 # From Andrew Newman (2012-02-24) 1472 # A letter from Justin McPhee, Chief Executive, 1473 # Cable & Wireless Falkland Islands (dated 2012-02-22) 1474 # states... 1475 # The current Atlantic/Stanley entry under South America expects the 1476 # clocks to go back to standard Falklands Time (FKT) on the 15th April. 1477 # The database entry states that in 2011 Stanley was staying on fixed 1478 # summer time on a trial basis only. FIG need to contact IANA and/or 1479 # the maintainers of the database to inform them we're adopting 1480 # the same policy this year and suggest recommendations for future years. 1481 # 1482 # For now we will assume permanent summer time for the Falklands 1483 # until advised differently (to apply for 2012 and beyond, after the 2011 1484 # experiment was apparently successful.) 1485 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1486 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S 1487 Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 1488 Rule Falk 1939 only - Oct 1 0:00 1:00 S 1489 Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S 1490 Rule Falk 1943 only - Jan 1 0:00 0 - 1491 Rule Falk 1983 only - Sep lastSun 0:00 1:00 S 1492 Rule Falk 1984 1985 - Apr lastSun 0:00 0 - 1493 Rule Falk 1984 only - Sep 16 0:00 1:00 S 1494 Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S 1495 Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 1496 Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - 1497 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S 1498 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1499 Zone Atlantic/Stanley -3:51:24 - LMT 1890 1500 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 1501 -4:00 Falk FK%sT 1983 May # Falkland Is Time 1502 -3:00 Falk FK%sT 1985 Sep 15 1503 -4:00 Falk FK%sT 2010 Sep 5 02:00 1504 -3:00 - FKST 1505 1506 # French Guiana 1507 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1508 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1509 -4:00 - GFT 1967 Oct # French Guiana Time 1510 -3:00 - GFT 1511 1512 # Guyana 1513 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1514 Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 1515 -3:45 - GBGT 1966 May 26 # Br Guiana Time 1516 -3:45 - GYT 1975 Jul 31 # Guyana Time 1517 -3:00 - GYT 1991 1518 # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 1519 -4:00 - GYT 1520 1521 # Paraguay 1522 # From Paul Eggert (2006-03-22): 1523 # Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, 1524 # and autumn transitions are from 00:00 -> 23:00. Go with pre-1999 1525 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. 1526 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1527 Rule Para 1975 1988 - Oct 1 0:00 1:00 S 1528 Rule Para 1975 1978 - Mar 1 0:00 0 - 1529 Rule Para 1979 1991 - Apr 1 0:00 0 - 1530 Rule Para 1989 only - Oct 22 0:00 1:00 S 1531 Rule Para 1990 only - Oct 1 0:00 1:00 S 1532 Rule Para 1991 only - Oct 6 0:00 1:00 S 1533 Rule Para 1992 only - Mar 1 0:00 0 - 1534 Rule Para 1992 only - Oct 5 0:00 1:00 S 1535 Rule Para 1993 only - Mar 31 0:00 0 - 1536 Rule Para 1993 1995 - Oct 1 0:00 1:00 S 1537 Rule Para 1994 1995 - Feb lastSun 0:00 0 - 1538 Rule Para 1996 only - Mar 1 0:00 0 - 1539 # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 1540 # From Steffen Thorsen (2000-10-02): 1541 # I have three independent reports that Paraguay changed to DST this Sunday 1542 # (10-01). 1543 # 1544 # Translated by Gwillim Law (2001-02-27) from 1545 # <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm"> 1546 # Noticias, a daily paper in Asuncion, Paraguay (2000-10-01) 1547 # </a>: 1548 # Starting at 0:00 today, the clock will be set forward 60 minutes, in 1549 # fulfillment of Decree No. 7,273 of the Executive Power.... The time change 1550 # system has been operating for several years. Formerly there was a separate 1551 # decree each year; the new law has the same effect, but permanently. Every 1552 # year, the time will change on the first Sunday of October; likewise, the 1553 # clock will be set back on the first Sunday of March. 1554 # 1555 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S 1556 # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 1557 Rule Para 1997 only - Feb lastSun 0:00 0 - 1558 # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 1559 # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 1560 Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - 1561 # From Rives McDow (2002-02-28): 1562 # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the 1563 # dst method to be from the first Sunday in September to the first Sunday in 1564 # April. 1565 Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - 1566 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S 1567 # 1568 # From Jesper Norgaard Welen (2005-01-02): 1569 # There are several sources that claim that Paraguay made 1570 # a timezone rule change in autumn 2004. 1571 # From Steffen Thorsen (2005-01-05): 1572 # Decree 1,867 (2004-03-05) 1573 # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13) 1574 # <http://www.presidencia.gov.py/decretos/D1867.pdf> 1575 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S 1576 Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - 1577 # From Carlos Raul Perasso (2010-02-18): 1578 # By decree number 3958 issued yesterday ( 1579 # <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf"> 1580 # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf 1581 # </a> 1582 # ) 1583 # Paraguay changes its DST schedule, postponing the March rule to April and 1584 # modifying the October date. The decree reads: 1585 # ... 1586 # Art. 1. It is hereby established that from the second Sunday of the month of 1587 # April of this year (2010), the official time is to be set back 60 minutes, 1588 # and that on the first Sunday of the month of October, it is to be set 1589 # forward 60 minutes, in all the territory of the Paraguayan Republic. 1590 # ... 1591 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S 1592 Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - 1593 # 1594 # From Steffen Thorsen (2013-03-07): 1595 # Paraguay will end DST on 2013-03-24 00:00.... 1596 # http://www.ande.gov.py/interna.php?id=1075 1597 # 1598 # From Carlos Raul Perasso (2013-03-15): 1599 # The change in Paraguay is now final. Decree number 10780 1600 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf 1601 Rule Para 2013 max - Mar Sun>=22 0:00 0 - 1602 1603 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1604 Zone America/Asuncion -3:50:40 - LMT 1890 1605 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time 1606 -4:00 - PYT 1972 Oct # Paraguay Time 1607 -3:00 - PYT 1974 Apr 1608 -4:00 Para PY%sT 1609 1610 # Peru 1611 # 1612 # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> 1613 # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> 1614 # When we were in Peru in 1985-1986, they apparently switched over 1615 # sometime between December 29 and January 3 while we were on the Amazon. 1616 # 1617 # From Paul Eggert (2006-03-22): 1618 # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 1619 1620 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1621 Rule Peru 1938 only - Jan 1 0:00 1:00 S 1622 Rule Peru 1938 only - Apr 1 0:00 0 - 1623 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S 1624 Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 1625 Rule Peru 1986 1987 - Jan 1 0:00 1:00 S 1626 Rule Peru 1986 1987 - Apr 1 0:00 0 - 1627 Rule Peru 1990 only - Jan 1 0:00 1:00 S 1628 Rule Peru 1990 only - Apr 1 0:00 0 - 1629 # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 1630 Rule Peru 1994 only - Jan 1 0:00 1:00 S 1631 Rule Peru 1994 only - Apr 1 0:00 0 - 1632 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1633 Zone America/Lima -5:08:12 - LMT 1890 1634 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 1635 -5:00 Peru PE%sT # Peru Time 1636 1637 # South Georgia 1638 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1639 Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 1640 -2:00 - GST # South Georgia Time 1641 1642 # South Sandwich Is 1643 # uninhabited; scientific personnel have wintered 1644 1645 # Suriname 1646 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1647 Zone America/Paramaribo -3:40:40 - LMT 1911 1648 -3:40:52 - PMT 1935 # Paramaribo Mean Time 1649 -3:40:36 - PMT 1945 Oct # The capital moved? 1650 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time 1651 -3:30 - SRT 1984 Oct # Suriname Time 1652 -3:00 - SRT 1653 1654 # Trinidad and Tobago 1655 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1656 Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 1657 -4:00 - AST 1658 1659 # Uruguay 1660 # From Paul Eggert (1993-11-18): 1661 # Uruguay wins the prize for the strangest peacetime manipulation of the rules. 1662 # From Shanks & Pottenger: 1663 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1664 # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. 1665 Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS 1666 Rule Uruguay 1924 1926 - Apr 1 0:00 0 - 1667 Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS 1668 Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS 1669 # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. 1670 Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - 1671 Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS 1672 Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - 1673 # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. 1674 Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS 1675 # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, 1676 # and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger. 1677 Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS 1678 Rule Uruguay 1942 only - Jan 1 0:00 0 - 1679 Rule Uruguay 1942 only - Dec 14 0:00 1:00 S 1680 Rule Uruguay 1943 only - Mar 14 0:00 0 - 1681 Rule Uruguay 1959 only - May 24 0:00 1:00 S 1682 Rule Uruguay 1959 only - Nov 15 0:00 0 - 1683 Rule Uruguay 1960 only - Jan 17 0:00 1:00 S 1684 Rule Uruguay 1960 only - Mar 6 0:00 0 - 1685 Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S 1686 Rule Uruguay 1965 only - Sep 26 0:00 0 - 1687 Rule Uruguay 1966 1967 - Oct 31 0:00 0 - 1688 Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS 1689 Rule Uruguay 1968 1970 - Dec 2 0:00 0 - 1690 Rule Uruguay 1972 only - Apr 24 0:00 1:00 S 1691 Rule Uruguay 1972 only - Aug 15 0:00 0 - 1692 Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS 1693 Rule Uruguay 1974 only - Dec 22 0:00 1:00 S 1694 Rule Uruguay 1976 only - Oct 1 0:00 0 - 1695 Rule Uruguay 1977 only - Dec 4 0:00 1:00 S 1696 Rule Uruguay 1978 only - Apr 1 0:00 0 - 1697 Rule Uruguay 1979 only - Oct 1 0:00 1:00 S 1698 Rule Uruguay 1980 only - May 1 0:00 0 - 1699 Rule Uruguay 1987 only - Dec 14 0:00 1:00 S 1700 Rule Uruguay 1988 only - Mar 14 0:00 0 - 1701 Rule Uruguay 1988 only - Dec 11 0:00 1:00 S 1702 Rule Uruguay 1989 only - Mar 12 0:00 0 - 1703 Rule Uruguay 1989 only - Oct 29 0:00 1:00 S 1704 # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, 1705 # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. 1706 Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - 1707 Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S 1708 Rule Uruguay 1992 only - Oct 18 0:00 1:00 S 1709 Rule Uruguay 1993 only - Feb 28 0:00 0 - 1710 # From Eduardo Cota (2004-09-20): 1711 # The uruguayan government has decreed a change in the local time.... 1712 # http://www.presidencia.gub.uy/decretos/2004091502.htm 1713 Rule Uruguay 2004 only - Sep 19 0:00 1:00 S 1714 # From Steffen Thorsen (2005-03-11): 1715 # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 1716 # save energy ... it was postponed two weeks.... 1717 # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm 1718 Rule Uruguay 2005 only - Mar 27 2:00 0 - 1719 # From Eduardo Cota (2005-09-27): 1720 # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF 1721 # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at 1722 # 02:00 local time, official time in Uruguay will be at GMT -2. 1723 Rule Uruguay 2005 only - Oct 9 2:00 1:00 S 1724 Rule Uruguay 2006 only - Mar 12 2:00 0 - 1725 # From Jesper Norgaard Welen (2006-09-06): 1726 # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF 1727 Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S 1728 Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - 1729 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1730 Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 1731 -3:44:44 - MMT 1920 May 1 # Montevideo MT 1732 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time 1733 -3:00 Uruguay UY%sT 1734 1735 # Venezuela 1736 # 1737 # From John Stainforth (2007-11-28): 1738 # ... the change for Venezuela originally expected for 2007-12-31 has 1739 # been brought forward to 2007-12-09. The official announcement was 1740 # published today in the "Gaceta Oficial de la Republica Bolivariana 1741 # de Venezuela, numero 38.819" (official document for all laws or 1742 # resolution publication) 1743 # http://www.globovision.com/news.php?nid=72208 1744 1745 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1746 Zone America/Caracas -4:27:44 - LMT 1890 1747 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 1748 -4:30 - VET 1965 # Venezuela Time 1749 -4:00 - VET 2007 Dec 9 03:00 1750 -4:30 - VET