Branch: Tag:

2007-02-01

2007-02-01 14:18:48 by Henrik Grubbström (Grubba) <grubba@grubba.org>

Updated to ftp://elsie.nci.nih.gov/pub/tzdata2007a.tar.gz.

Rev: lib/modules/Calendar.pmod/tzdata/africa:1.4
Rev: lib/modules/Calendar.pmod/tzdata/antarctica:1.3
Rev: lib/modules/Calendar.pmod/tzdata/asia:1.6
Rev: lib/modules/Calendar.pmod/tzdata/australasia:1.6
Rev: lib/modules/Calendar.pmod/tzdata/backward:1.5
Rev: lib/modules/Calendar.pmod/tzdata/etcetera:1.3
Rev: lib/modules/Calendar.pmod/tzdata/europe:1.6
Rev: lib/modules/Calendar.pmod/tzdata/factory:1.2
Rev: lib/modules/Calendar.pmod/tzdata/iso3166.tab:1.4
Rev: lib/modules/Calendar.pmod/tzdata/leapseconds:1.3
Rev: lib/modules/Calendar.pmod/tzdata/northamerica:1.6
Rev: lib/modules/Calendar.pmod/tzdata/pacificnew:1.2
Rev: lib/modules/Calendar.pmod/tzdata/solar87:1.2
Rev: lib/modules/Calendar.pmod/tzdata/solar88:1.2
Rev: lib/modules/Calendar.pmod/tzdata/solar89:1.2
Rev: lib/modules/Calendar.pmod/tzdata/southamerica:1.6
Rev: lib/modules/Calendar.pmod/tzdata/systemv:1.3
Rev: lib/modules/Calendar.pmod/tzdata/yearistype.sh:1.4
Rev: lib/modules/Calendar.pmod/tzdata/zone.tab:1.6

1: - # @(#)southamerica 7.46 + # @(#)southamerica 8.8 + # <pre>      # This data is by no means authoritative; if you think you know better,   # go ahead and edit the file (and please send any changes to   # tz@elsie.nci.nih.gov for general use in the future).    - # From Paul Eggert <eggert@twinsun.com> (1999-07-07): + # From Paul Eggert (2006-03-22):   # A good source for time zone historical data outside the U.S. is - # Thomas G. Shanks, The International Atlas (5th edition), - # San Diego: ACS Publications, Inc. (1999). + # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), + # San Diego: ACS Publications, Inc. (2003).   #   # Gwillim Law writes that a good source   # for recent time zone data is the International Air Transport
15:   # published semiannually. Law sent in several helpful summaries   # of the IATA's data after 1990.   # - # Except where otherwise noted, Shanks is the source for entries through 1990, - # and IATA SSIM is the source for entries after 1990. + # Except where otherwise noted, Shanks & Pottenger is the source for + # entries through 1990, and IATA SSIM is the source for entries afterwards.   #   # Earlier editions of these tables used the North American style (e.g. ARST and   # ARDT for Argentine Standard and Daylight Time), but the following quote
58:   # From U. S. Naval Observatory (1988-01-199):   # ARGENTINA 3 H BEHIND UTC    - # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): + # From Hernan G. Otero (1995-06-26):   # I am sending modifications to the Argentine time zone table...   # AR was chosen because they are the ISO letters that represent Argentina.   
86:   Rule Arg 1974 only - May 1 0:00 0 -   Rule Arg 1988 only - Dec 1 0:00 1:00 S   # - # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): + # From Hernan G. Otero (1995-06-26):   # These corrections were contributed by InterSoft Argentina S.A.,   # obtaining the data from the:   # Talleres de Hidrografia Naval Argentina   # (Argentine Naval Hydrography Institute) - # - # Shanks stops after 1992-03-01; go with Otero. +    Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -   Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S   # - # From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26): + # From Hernan G. Otero (1995-06-26):   # From this moment on, the law that mandated the daylight saving   # time corrections was derogated and no more modifications   # to the time zones (for daylight saving) are now made.
113:   # Argentina decided not to become one of the countries that go on or off DST.   # So Buenos Aires should be -3 hours from GMT at all times.   # - # From Fabian L. Arce Jofre <farcejofre@bigfoot.com> (2000-04-04): + # From Fabian L. Arce Jofre (2000-04-04):   # The law that claimed DST for Argentina was derogated by President Fernando   # de la Rua on March 2, 2000, because it would make people spend more energy   # in the winter time, rather than less. The change took effect on March 3.
141:   # This kind of things had always been done this way in Argentina.   # We are still -03:00 all year round in all of the country.   # + # From Mariano Absatz (2004-05-21): + # Today it was officially published that the Province of Mendoza is changing + # its timezone this winter... starting tomorrow night.... + # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf + # From Paul Eggert (2004-05-24): + # It's Law No. 7,210. This change is due to a public power emergency, so for + # now we'll assume it's for this year only.   # - # From Paul Eggert (2002-01-22): + # From Paul Eggert (2006-03-22):   # <a href="http://www.spicasc.net/horvera.html"> - # Hora de verano para la Republica Argentina (2000-10-01) + # Hora de verano para la Republica Argentina (2003-06-08)   # </a> says that standard time in Argentina from 1894-10-31   # to 1920-05-01 was -4:16:48.25. Go with this more-precise value - # over Shanks. + # over Shanks & Pottenger. + # + # From Mariano Absatz (2004-06-05): + # These media articles from a major newspaper mostly cover the current state: + # http://www.lanacion.com.ar/04/05/27/de_604825.asp + # http://www.lanacion.com.ar/04/05/28/de_605203.asp + # + # The following eight (8) provinces pulled clocks back to UTC-04:00 at + # midnight Monday May 31st. (that is, the night between 05/31 and 06/01). + # Apparently, all nine provinces would go back to UTC-03:00 at the same + # time in October 17th. + # + # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, + # Tierra del Fuego, Tucuman. + # + # From Mariano Absatz (2004-06-14): + # ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00 + # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's + # annoyance with the change is much higher than the power savings obtained.... + # + # From Gwillim Law (2004-06-14): + # http://www.lanacion.com.ar/04/06/10/de_609078.asp ... + # "The time change in Tierra del Fuego was a conflicted decision from + # the start. The government had decreed that the measure would take + # effect on June 1, but a normative error forced the new time to begin + # three days earlier, from a Saturday to a Sunday.... + # Our understanding was that the change was originally scheduled to take place + # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other + # provinces). Sunday was May 30, only two days earlier. So the article + # contains a contradiction. I would give more credence to the Saturday/Sunday + # date than the "three days earlier" phrase, and conclude that Tierra del + # Fuego set its clocks back at 2004-05-30 00:00. + # + # From Steffen Thorsen (2004-10-05): + # The previous law 7210 which changed the province of Mendoza's time zone + # back in May have been modified slightly in a new law 7277, which set the + # new end date to 2004-09-26 (original date was 2004-10-17). + # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf + # + # From Mariano Absatz (2004-10-05): + # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between + # Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 + # at midnight between Saturday, July 24th and Sunday, July 25th.... + # http://www.sanjuan.gov.ar/prensa/archivo/000329.html + # http://www.sanjuan.gov.ar/prensa/archivo/000426.html + # http://www.sanjuan.gov.ar/prensa/archivo/000441.html    - # Unless otherwise specified, data are from Shanks through 1992, from - # the IATA otherwise. As noted below, Shanks says that - # America/Cordoba split into 7 subregions during 1991/1992, but we + # Unless otherwise specified, data are from Shanks & Pottenger through 1992, + # from the IATA otherwise. As noted below, Shanks & Pottenger say that + # America/Cordoba split into 6 subregions during 1991/1992, but we   # haven't verified this yet so for now we'll keep it a single region.   #   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   # - # Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC), - # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) - Zone America/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 + # Buenos Aires (BA), Capital Federal (CF), + Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31    -4:16:48 - CMT 1920 May # Cordoba Mean Time    -4:00 - ART 1930 Dec    -4:00 Arg AR%sT 1969 Oct 5
167:    -3:00 - ART   #   # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), - # Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE), - # Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP), - # Neuquen (NQ), Rio Negro (RN), Chubut (CH) + # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB), + # San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)   # - # Shanks also makes the following claims, which we haven't verified: + # Shanks & Pottenger also make the following claims, which we haven't verified:   # - Formosa switched to -3:00 on 1991-01-07. - # - La Rioja and San Juan switched to -4:00 on 1991-03-01 - # and then to -3:00 on 1991-05-07. +    # - Misiones switched to -3:00 on 1990-12-29.   # - Chaco switched to -3:00 on 1991-01-04.   # - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,   # then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.   # - Santiago del Estero switched to -4:00 on 1991-04-01,   # then to -3:00 on 1991-04-26. - # If we need to add Zones for these areas, we may need to have a subdirectory - # for Argentina, as e.g. "America/San_Luis" is too ambiguious. +    # - Zone America/Cordoba -4:16:48 - LMT 1894 Oct 31 + Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31    -4:16:48 - CMT 1920 May    -4:00 - ART 1930 Dec    -4:00 Arg AR%sT 1969 Oct 5
194:    -4:00 Arg AR%sT 2000 Mar 3    -3:00 - ART   # + # Tucuman (TM) + Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 +  -4:16:48 - CMT 1920 May +  -4:00 - ART 1930 Dec +  -4:00 Arg AR%sT 1969 Oct 5 +  -3:00 Arg AR%sT 1991 Mar 3 +  -4:00 - WART 1991 Oct 20 +  -3:00 Arg AR%sT 1999 Oct 3 +  -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 Jun 1 +  -4:00 - WART 2004 Jun 13 +  -3:00 - ART + # + # La Rioja (LR) + Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 +  -4:16:48 - CMT 1920 May +  -4:00 - ART 1930 Dec +  -4:00 Arg AR%sT 1969 Oct 5 +  -3:00 Arg AR%sT 1991 Mar 1 +  -4:00 - WART 1991 May 7 +  -3:00 Arg AR%sT 1999 Oct 3 +  -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 Jun 1 +  -4:00 - WART 2004 Jun 20 +  -3:00 - ART + # + # San Juan (SJ) + Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 +  -4:16:48 - CMT 1920 May +  -4:00 - ART 1930 Dec +  -4:00 Arg AR%sT 1969 Oct 5 +  -3:00 Arg AR%sT 1991 Mar 1 +  -4:00 - WART 1991 May 7 +  -3:00 Arg AR%sT 1999 Oct 3 +  -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 May 31 +  -4:00 - WART 2004 Jul 25 +  -3:00 - ART + #   # Jujuy (JY) - Zone America/Jujuy -4:21:12 - LMT 1894 Oct 31 + Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31    -4:16:48 - CMT 1920 May    -4:00 - ART 1930 Dec    -4:00 Arg AR%sT 1969 Oct 5
208:    -4:00 Arg AR%sT 2000 Mar 3    -3:00 - ART   # - # Catamarca (CT) - Zone America/Catamarca -4:23:08 - LMT 1894 Oct 31 + # Catamarca (CT), Chubut (CH) + Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31    -4:16:48 - CMT 1920 May    -4:00 - ART 1930 Dec    -4:00 Arg AR%sT 1969 Oct 5
217:    -4:00 - WART 1991 Oct 20    -3:00 Arg AR%sT 1999 Oct 3    -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 Jun 1 +  -4:00 - WART 2004 Jun 20    -3:00 - ART   #   # Mendoza (MZ) - Zone America/Mendoza -4:35:16 - LMT 1894 Oct 31 + Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31    -4:16:48 - CMT 1920 May    -4:00 - ART 1930 Dec    -4:00 Arg AR%sT 1969 Oct 5
232:    -4:00 - WART 1992 Oct 18    -3:00 Arg AR%sT 1999 Oct 3    -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 May 23 +  -4:00 - WART 2004 Sep 26    -3:00 - ART -  + # + # Santa Cruz (SC) + Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 +  -4:16:48 - CMT 1920 May # Cordoba Mean Time +  -4:00 - ART 1930 Dec +  -4:00 Arg AR%sT 1969 Oct 5 +  -3:00 Arg AR%sT 1999 Oct 3 +  -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 Jun 1 +  -4:00 - WART 2004 Jun 20 +  -3:00 - ART + # + # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) + Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 +  -4:16:48 - CMT 1920 May # Cordoba Mean Time +  -4:00 - ART 1930 Dec +  -4:00 Arg AR%sT 1969 Oct 5 +  -3:00 Arg AR%sT 1999 Oct 3 +  -4:00 Arg AR%sT 2000 Mar 3 +  -3:00 - ART 2004 May 30 +  -4:00 - WART 2004 Jun 20 +  -3:00 - ART      # Aruba   # Zone NAME GMTOFF RULES FORMAT [UNTIL]
249:      # Brazil    - # From Paul Eggert <eggert@twinsun.com> (1993-11-18): + # From Paul Eggert (1993-11-18):   # The mayor of Rio recently attempted to change the time zone rules   # just in his city, in order to leave more summer time for the tourist trade.   # The rule change lasted only part of the day;
309:   # the Government decided to postpone DST, instead of changing the Constitution   # (maybe, for the next elections, it will be possible to change the clock)...    + # From Rodrigo Severo (2004-10-04): + # It's just the biannual change made necessary by the much hyped, supposedly + # modern Brazilian eletronic voting machines which, apparently, can't deal + # with a time change between the first and the second rounds of the elections. +    # From Paul Eggert (2002-10-10):   # The official decrees referenced below are mostly taken from   # <a href="http://pcdsh01.on.br/DecHV.html">   # Decretos sobre o Horario de Verao no Brasil - # </a> (2001-09-20, in Portuguese). - # The official site for all decrees, including those not related to time, is - # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm"> - # Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos - # </a> (in Portuguese). + # </a>.      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
389:   Rule Brazil 1993 only - Jan 31 0:00 0 -   # Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)   # adopted by same states, plus AM. - # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22) - # adopted by same states, minus AM. + # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22; + # web page corrected 2004-01-07) adopted by same states, minus AM.   # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) - # adopted by same states, plus TO. + # adopted by same states, plus MT and TO.   # Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)   # adds AL, SE.   Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
402:   # adopted by same states, minus AL, SE.   Rule Brazil 1996 only - Oct 6 0:00 1:00 S   Rule Brazil 1997 only - Feb 16 0:00 0 - - # From Daniel C. Sobral <dcs@gns.com.br> (1998-02-12): + # From Daniel C. Sobral (1998-02-12):   # In 1997, the DS began on October 6. The stated reason was that   # because international television networks ignored Brazil's policy on DS,   # they bought the wrong times on satellite for coverage of Pope's visit.   # This year, the ending date of DS was postponed to March 1   # to help dealing with the shortages of electric power.   # - # From Paul Eggert (1998-02-25): - # <a href="http://churchnet.ucsm.ac.uk/news/files2/news165.htm"> - # Brazil Prepares for Papal Visit - # </a>, - # Church Net UK (1997-10-02). - # +    # Decree 2,317 (1997-09-04), adopted by same states.   Rule Brazil 1997 only - Oct 6 0:00 1:00 S   # Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
439:   # Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>   # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.   Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S - Rule Brazil 2001 max - Feb Sun>=15 0:00 0 - + Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 -   # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.   # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>   Rule Brazil 2002 only - Nov 3 0:00 1:00 S - # - Rule Brazil 2003 max - Oct Sun>=8 0:00 1:00 S - # The latest decree listed above says that the following states observe DST: - # BA, DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP, TO. - # - # For dates after mid-2003, the above rules with TO="max" are guesses + # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. + # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm"></a> + Rule Brazil 2003 only - Oct 19 0:00 1:00 S + # Decree 5,223 (2004-10-01) reestablishes DST in MT. + # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm"></a> + Rule Brazil 2004 only - Nov 2 0:00 1:00 S + # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), + # adopted by the same states as before. + Rule Brazil 2005 only - Oct 16 0:00 1:00 S + # Decree <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2006/Decreto/D5920.htm">5,920</a> + # (2006-10-03), adopted by the same states as before. + Rule Brazil 2006 max - Nov Sun>=1 0:00 1:00 S + Rule Brazil 2007 max - Feb lastSun 0:00 0 - + # The latest ruleset listed above says that the following states observe DST: + # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. + # For dates after mid-2007, the above rules with TO="max" are guesses   # and are quite possibly wrong, but are more likely than no DST at all.         # Zone NAME GMTOFF RULES FORMAT [UNTIL]   # - # Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz, - # Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo + # Fernando de Noronha (administratively part of PE)   Zone America/Noronha -2:09:40 - LMT 1914    -2:00 Brazil FN%sT 1990 Sep 17 -  +  -2:00 - FNT 1999 Sep 30 +  -2:00 Brazil FN%sT 2000 Oct 15 +  -2:00 - FNT 2001 Sep 13 +  -2:00 Brazil FN%sT 2002 Oct 1    -2:00 - FNT -  + # Other Atlantic islands have no permanent settlement. + # These include Trindade and Martin Vaz (administratively part of ES), + # Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE). + # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; + # it also included the Penedos.   #   # Amapa (AP), east Para (PA)   # East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu. -  + # The division between east and west Para is the river Xingu. + # In the north a very small part from the river Javary (now Jari I guess, + # the border with Amapa) to the Amazon, then to the Xingu.   Zone America/Belem -3:13:56 - LMT 1914    -3:00 Brazil BR%sT 1988 Sep 12    -3:00 - BRT
489:   Zone America/Araguaina -3:12:48 - LMT 1914    -3:00 Brazil BR%sT 1990 Sep 17    -3:00 - BRT 1995 Sep 14 -  -3:00 Brazil BR%sT +  -3:00 Brazil BR%sT 2003 Sep 24 +  -3:00 - BRT   #   # Alagoas (AL), Sergipe (SE)   Zone America/Maceio -2:22:52 - LMT 1914
502:    -3:00 Brazil BR%sT 2002 Oct 1    -3:00 - BRT   # - # Bahia (BA), Goias (GO), Distrito Federal (DF), Minas Gerais (MG), + # Bahia (BA) + # There are too many Salvadors elsewhere, so use America/Bahia instead + # of America/Salvador. + Zone America/Bahia -2:34:04 - LMT 1914 +  -3:00 Brazil BR%sT 2003 Sep 24 +  -3:00 - BRT + # + # Goias (GO), Distrito Federal (DF), Minas Gerais (MG),   # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),   # Santa Catarina (SC), Rio Grande do Sul (RS)   Zone America/Sao_Paulo -3:06:28 - LMT 1914
510:    -3:00 1:00 BRST 1964    -3:00 Brazil BR%sT   # - # Mato Grosso (MT), Mato Grosso do Sul (MS) + # Mato Grosso do Sul (MS) + Zone America/Campo_Grande -3:38:28 - LMT 1914 +  -4:00 Brazil AM%sT + # + # Mato Grosso (MT)   Zone America/Cuiaba -3:44:20 - LMT 1914 -  +  -4:00 Brazil AM%sT 2003 Sep 24 +  -4:00 - AMT 2004 Oct 1    -4:00 Brazil AM%sT   #   # west Para (PA), Rondonia (RO)
528:    -4:00 - AMT   #   # east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto + # The great circle line from Tabatinga to Porto Acre divides + # east from west Amazonas.   Zone America/Manaus -4:00:04 - LMT 1914    -4:00 Brazil AM%sT 1988 Sep 12    -4:00 - AMT 1993 Sep 28
562:   # Because of the same drought, the government decided to end DST later,   # on April 3, (one-time change).    - # From Gwillim Law (2001-05-04): - # I came across another article in "La Tercera" about Chilean DST. - # <http://www.tercera.cl/diario/2000/10/13/t-extras.html> - # It clearly confirms my earlier suggestion, that DST begins at 22:00 - # on Easter Island.... But it also seems to be saying that the - # observance of DST in Chile began in 1966, rather than 1969 as - # ... [Shanks] has it.... - # - # My translation: - # - # "The Chilean Army has announced that summer time will begin tomorrow, - # Saturday, October 14 in continental Chile, insular Chile, and - # Antarctica, as provided by Supreme Decree 25 of January 11, 1966. - # By the preceding, official time in continental Chile and Chilean - # Antarctic, and official time in Western Insular Chile, which applies - # to Easter Island and Sala y Gomez Island, will be set forward at - # midnight and at 22:00, respectively, by 20 minutes." + # From Oscar van Vlijmen (2006-10-08): + # http://www.horaoficial.cl/cambio.htm    - # From Paul Eggert (2001-05-04): - # Go with this article in preference to Shanks's 1969 date for modern DST. - # Assume this rule has been used since DST was introduced in the islands. + # From Jesper Norgaard Welen (2006-10-08): + # I think that there are some obvious mistakes in the suggested link + # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 + # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 + # (they should have been 1990-09-15 and 1990-09-16 respectively), but + # anyhow it clears up some doubts too.    - # From Paul Eggert (2002-10-24): - # <http://www.shoa.cl/shoa/faqhoraoficial.htm> gives many details that - # disagree with the following table, but we haven't had time to compare them. + # From Paul Eggert (2006-12-27): + # The following data for Chile and America/Santiago are from + # <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by + # Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks + # & Pottenger, except with DST transitions after 1932 cloned from + # America/Santiago. The pre-1980 Pacific/Easter data are dubious, + # but we have no other source.      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule Chile 1918 only - Sep 1 0:00 1:00 S - Rule Chile 1919 only - Jul 2 0:00 0 - - Rule Chile 1927 1931 - Sep 1 0:00 1:00 S + Rule Chile 1927 1932 - Sep 1 0:00 1:00 S   Rule Chile 1928 1932 - Apr 1 0:00 0 - - Rule Chile 1966 1997 - Oct Sun>=9 4:00u 1:00 S - Rule Chile 1967 1998 - Mar Sun>=9 3:00u 0 - + Rule Chile 1942 only - Jun 1 4:00u 0 - + Rule Chile 1942 only - Aug 1 5:00u 1:00 S + Rule Chile 1946 only - Jul 15 4:00u 1:00 S + Rule Chile 1946 only - Sep 1 3:00u 0:00 - + Rule Chile 1947 only - Apr 1 4:00u 0 - + Rule Chile 1968 only - Nov 3 4:00u 1:00 S + Rule Chile 1969 only - Mar 30 3:00u 0 - + Rule Chile 1969 only - Nov 23 4:00u 1:00 S + Rule Chile 1970 only - Mar 29 3:00u 0 - + Rule Chile 1971 only - Mar 14 3:00u 0 - + Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S + Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - + Rule Chile 1973 only - Sep 30 4:00u 1:00 S + Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S + Rule Chile 1987 only - Apr 12 3:00u 0 - + Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - + Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S + Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S + Rule Chile 1990 only - Mar 18 3:00u 0 - + Rule Chile 1990 only - Sep 16 4:00u 1:00 S + Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - + Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S + Rule Chile 1997 only - Mar 30 3:00u 0 - + Rule Chile 1998 only - Mar Sun>=9 3:00u 0 -   Rule Chile 1998 only - Sep 27 4:00u 1:00 S   Rule Chile 1999 only - Apr 4 3:00u 0 -   Rule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S   Rule Chile 2000 max - Mar Sun>=9 3:00u 0 - - # IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14; + # IATA SSIM anomalies: (1992-02) says 1992-03-14;   # (1996-09) says 1998-03-08. Ignore these.   # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone America/Santiago -4:42:40 - LMT 1890 -  -4:42:40 - SMT 1910 # Santiago Mean Time -  -5:00 Chile CL%sT 1932 Sep # Chile Time + Zone America/Santiago -4:42:46 - LMT 1890 +  -4:42:46 - SMT 1910 # Santiago Mean Time +  -5:00 - CLT 1916 Jul 1 # Chile Time +  -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time +  -4:00 - CLT 1919 Jul 1 # Chile Time +  -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time +  -5:00 Chile CL%sT 1947 May 22 # Chile Time    -4:00 Chile CL%sT - Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri -  -7:17:28 - MMT 1932 Sep # Mataveri Mean Time -  -7:00 Chile EAS%sT 1982 Mar 14 # Easter I Time + Zone Pacific/Easter -7:17:44 - LMT 1890 +  -7:17:44 - EMT 1932 Sep # Easter Mean Time +  -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time    -6:00 Chile EAS%sT   #   # Sala y Gomez Island is like Pacific/Easter.
616:   # San Felix, and Antarctic bases, are like America/Santiago.      # Colombia - # Shanks specifies 24:00 for 1992 transition times; go with IATA, - # as it seems implausible to change clocks at midnight New Year's Eve. +    # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule CO 1992 only - May 2 0:00 1:00 S - Rule CO 1992 only - Dec 31 0:00 0 - + Rule CO 1992 only - May 3 0:00 1:00 S + Rule CO 1993 only - Apr 4 0:00 0 -   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Bogota -4:56:20 - LMT 1884 Mar 13    -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time
629:   # no information; probably like America/Bogota      # Curacao - # Shanks says that Bottom and Oranjestad have been at -4:00 since - # standard time was introduced on 1912-03-02; and that Kralendijk and Rincon - # used Kralendijk Mean Time (-4:33:08) from 1912-02-02 to 1965-01-01. + # + # From Paul Eggert (2006-03-22): + # Shanks & Pottenger say that The Bottom and Philipsburg have been at + # -4:00 since standard time was introduced on 1912-03-02; and that + # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from + # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say + # Saba Island has been like Curacao.   # This all predates our 1970 cutoff, though. -  + # + # By July 2007 Curacao and St Maarten are planned to become + # associated states within the Netherlands, much like Aruba; + # Bonaire, Saba and St Eustatius would become directly part of the + # Netherlands as Kingdom Islands. This won't affect their time zones + # though, as far as we know. + #   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad    -4:30 - ANT 1965 # Netherlands Antilles Time
649:      # Falklands    - # From Paul Eggert (2001-03-05): - # Between 1990 and 2000 inclusive, Shanks and the IATA agree except - # the IATA gives 1996-09-08. Go with Shanks. + # From Paul Eggert (2006-03-22): + # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except + # the IATA gives 1996-09-08. Go with Shanks & Pottenger.      # From Falkland Islands Government Office, London (2001-01-22)   # via Jesper Norgaard:
734:    -4:00 - GYT      # Paraguay - # From Paul Eggert (1999-10-29): - # Shanks (1999) says that spring transitions are from 01:00 -> 02:00, - # and autumn transitions are from 00:00 -> 23:00. Go with earlier + # From Paul Eggert (2006-03-22): + # Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, + # and autumn transitions are from 00:00 -> 23:00. Go with pre-1999   # editions of Shanks, and with the IATA, who say transitions occur at 00:00.   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule Para 1975 1988 - Oct 1 0:00 1:00 S
767:   # year, the time will change on the first Sunday of October; likewise, the   # clock will be set back on the first Sunday of March.   # - # From Jesper Norgaard (2001-03-06) [an official URL saying similar things]: - # http://gateway.abc.com.py:8000/pub/pag04.mbr/artic?FHA=2001-03-03-02.24.52.900592 - # +    Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S - # IATA SSIM (1997-09) says Mar 1; go with Shanks. + # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.   Rule Para 1997 only - Feb lastSun 0:00 0 - - # Shanks says 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but + # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but   # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).   Rule Para 1998 2001 - Mar Sun>=1 0:00 0 -   # From Rives McDow (2002-02-28):   # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the   # dst method to be from the first Sunday in September to the first Sunday in   # April. - Rule Para 2002 max - Apr Sun>=1 0:00 0 - - Rule Para 2002 max - Sep Sun>=1 0:00 1:00 S + Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - + Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S + # + # From Jesper Norgaard Welen (2005-01-02): + # There are several sources that claim that Paraguay made + # a timezone rule change in autumn 2004. + # From Steffen Thorsen (2005-01-05): + # Decree 1,867 (2004-03-05) + # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13) + # <http://www.presidencia.gov.py/decretos/D1867.pdf> + Rule Para 2004 max - Oct Sun>=15 0:00 1:00 S + Rule Para 2005 max - Mar Sun>=8 0:00 0 -    -  +    # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Asuncion -3:50:40 - LMT 1890    -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
792:    -4:00 Para PY%sT      # Peru + # + # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> + # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> + # When we were in Peru in 1985-1986, they apparently switched over + # sometime between December 29 and January 3 while we were on the Amazon. + # + # From Paul Eggert (2006-03-22): + # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. +    # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule Peru 1938 only - Jan 1 0:00 1:00 S   Rule Peru 1938 only - Apr 1 0:00 0 -   Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S   Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - - Rule Peru 1987 only - Jan 1 0:00 1:00 S - Rule Peru 1987 only - Apr 1 0:00 0 - + Rule Peru 1986 1987 - Jan 1 0:00 1:00 S + Rule Peru 1986 1987 - Apr 1 0:00 0 -   Rule Peru 1990 only - Jan 1 0:00 1:00 S   Rule Peru 1990 only - Apr 1 0:00 0 - - # IATA is ambiguous for 1993/1995; go with Shanks. + # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.   Rule Peru 1994 only - Jan 1 0:00 1:00 S   Rule Peru 1994 only - Apr 1 0:00 0 -   # Zone NAME GMTOFF RULES FORMAT [UNTIL]
832:    -4:00 - AST      # Uruguay - # From Paul Eggert <eggert@twinsun.com> (1993-11-18): + # From Paul Eggert (1993-11-18):   # Uruguay wins the prize for the strangest peacetime manipulation of the rules. - # From Shanks: + # From Shanks & Pottenger:   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - # Whitman gives 1923 Oct 1; go with Shanks. + # Whitman gives 1923 Oct 1; go with Shanks & Pottenger.   Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS   Rule Uruguay 1924 1926 - Apr 1 0:00 0 -   Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS   Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS - # Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman. + # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.   Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 -   Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS   Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - - # Whitman gives 1937 Oct 3; go with Shanks. + # Whitman gives 1937 Oct 3; go with Shanks & Pottenger.   Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS   # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, - # and 1943 Apr 13 ``to present time''; go with Shanks. - Rule Uruguay 1941 only - Aug 1 0:00 0 - - Rule Uruguay 1942 only - Jan 1 0:00 0:30 HS + # and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger. + Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS + Rule Uruguay 1942 only - Jan 1 0:00 0 -   Rule Uruguay 1942 only - Dec 14 0:00 1:00 S   Rule Uruguay 1943 only - Mar 14 0:00 0 -   Rule Uruguay 1959 only - May 24 0:00 1:00 S
876:   Rule Uruguay 1988 only - Dec 11 0:00 1:00 S   Rule Uruguay 1989 only - Mar 12 0:00 0 -   Rule Uruguay 1989 only - Oct 29 0:00 1:00 S - # Shanks says no DST was observed in 1990/1 and 1991/2, + # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,   # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.   Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -   Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S   Rule Uruguay 1992 only - Oct 18 0:00 1:00 S   Rule Uruguay 1993 only - Feb 28 0:00 0 - -  + # From Eduardo Cota (2004-09-20): + # The uruguayan government has decreed a change in the local time.... + # http://www.presidencia.gub.uy/decretos/2004091502.htm + Rule Uruguay 2004 only - Sep 19 0:00 1:00 S + # From Steffen Thorsen (2005-03-11): + # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to + # save energy ... it was postponed two weeks.... + # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm + Rule Uruguay 2005 only - Mar 27 2:00 0 - + # From Eduardo Cota (2005-09-27): + # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF + # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at + # 02:00 local time, official time in Uruguay will be at GMT -2. + Rule Uruguay 2005 only - Oct 9 2:00 1:00 S + Rule Uruguay 2006 only - Mar 12 2:00 0 - + # From Jesper Norgaard Welen (2006-09-06): + # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF + Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S + Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 -   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28    -3:44:44 - MMT 1920 May 1 # Montevideo MT