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