From e64bdc7f2af5c911edeebe8ca37e6fb73ea846ba Mon Sep 17 00:00:00 2001 From: Ruslan Ermilov Date: Wed, 29 Mar 2000 13:31:51 +0000 Subject: New timezone data. Obtained from: ftp://elsie.nci.nih.gov/pub/tzdata2000d.tar.gz --- share/zoneinfo/southamerica | 345 +++++++++++++++++++++++--------------------- 1 file changed, 177 insertions(+), 168 deletions(-) (limited to 'share/zoneinfo/southamerica') diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica index 3232c5c093b2..81797ff2a53d 100644 --- a/share/zoneinfo/southamerica +++ b/share/zoneinfo/southamerica @@ -1,15 +1,15 @@ -# @(#)southamerica 7.26 +# @(#)southamerica 7.35 # 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 (1996-11-22): +# From Paul Eggert (1999-07-07): # A good source for time zone historical data outside the U.S. is -# Thomas G. Shanks, The International Atlas (4th edition), -# San Diego: ACS Publications, Inc. (1995). +# Thomas G. Shanks, The International Atlas (5th edition), +# San Diego: ACS Publications, Inc. (1999). # -# Gwillim Law writes that a good source +# Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries @@ -18,16 +18,6 @@ # Except where otherwise noted, Shanks is the source for entries through 1990, # and IATA SSIM is the source for entries after 1990. # -# The following abbreviations are used in this file. -# Corrections are welcome! -# std dst -# LMT Local Mean Time -# -2:00 FST FDT Fernando de Noronha -# -3:00 EST EDT Eastern Brazil -# -4:00 WST WDT Western Brazil -# -4:00 AST ADT Atlantic -# -5:00 AST ADT Acre -# # 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 # suggests that it's better to use European style (e.g. ART and ARST). @@ -36,15 +26,24 @@ # in Europe and South America. # -- E O Cutler, _New York Times_ (1937-02-14), quoted in # H L Mencken, _The American Language: Supplement I_ (1960), p 466 - - -# From Guy Harris: -# From Official Airline Guide - Worldwide Edition (1987). Countries not -# listed here do not observe DST, according to the OAG. Time zone names -# are pure inventions, and none are supplied for countries not observing -# DST; updates from natives would be appreciated. The times that DST -# starts and ends are based on the assumption that they switch a 2AM just -# as everybody else does. +# +# Earlier editions of these tables also used the North American style +# for time zones in Brazil, but this was incorrect, as Brazilians say +# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in +# the railroad sector, writes (1999-07-06): +# The subject of time zones is currently a matter of discussion/debate in +# Brazil. Let's say that "the Brasilia time" is considered the +# "official time" because Brasilia is the capital city. +# The other three time zones are called "Brasilia time "minus one" or +# "plus one" or "plus two". As far as I know there is no such +# name/designation as "Eastern Time" or "Central Time". +# So I invented the following (English-language) abbreviations for now. +# Corrections are welcome! +# std dst +# -2:00 FNT FNST Fernando de Noronha +# -3:00 BRT BRST Brasilia +# -4:00 AMT AMST Amazon +# -5:00 ACT ACST Acre ############################################################################### @@ -81,12 +80,12 @@ Rule Arg 1963 only - Dec 15 0:00 1:00 S Rule Arg 1964 1966 - Mar 1 0:00 0 - Rule Arg 1964 1966 - Oct 15 0:00 1:00 S Rule Arg 1967 only - Apr 1 0:00 0 - -Rule Arg 1967 1968 - Oct Sun<=7 0:00 1:00 S -Rule Arg 1968 1969 - Apr Sun<=7 0:00 0 - +Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S +Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - Rule Arg 1974 only - Jan 23 0:00 1:00 S Rule Arg 1974 only - May 1 0:00 0 - -Rule Arg 1974 1976 - Oct Sun<=7 0:00 1:00 S -Rule Arg 1975 1977 - Apr Sun<=7 0:00 0 - +Rule Arg 1974 1976 - Oct Sun>=1 0:00 1:00 S +Rule Arg 1975 1977 - Apr Sun>=1 0:00 0 - Rule Arg 1985 only - Nov 2 0:00 1:00 S Rule Arg 1986 only - Mar 14 0:00 0 - Rule Arg 1986 1987 - Oct 25 0:00 1:00 S @@ -100,7 +99,7 @@ Rule Arg 1988 only - Dec 1 0:00 1:00 S # Talleres de Hidrografia Naval Argentina # (Argentine Naval Hydrography Institute) # -# Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero. +# 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 # @@ -109,6 +108,18 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # time corrections was derogated and no more modifications # to the time zones (for daylight saving) are now made. # +# From Rives McDow (2000-01-10): +# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, +# which did not result in the switch of a time zone, as they stayed 9 hours +# from the International Date Line. On March 5, 2000, at 0:00 local time, +# Argentina will come off daylight savings time, which will bring them to 8 +# hours from the International Date Line. +# +# From Peter Gradelski via Steffen Thorsen (2000-03-01): +# We just checked with our San Paulo office and they say the government of +# 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. +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Distrito Federal (DF), Santa Cruz (SC), @@ -116,7 +127,7 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov -4:16:44 - CMT 1920 May # Cordoba Mean Time -4:00 - ART 1930 Dec - -4:00 Arg AR%sT 1969 Oct 5 + -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT # # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), @@ -124,7 +135,7 @@ Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov Zone America/Rosario -4:02:40 - LMT 1894 Nov -4:16:44 - CMT 1920 May -4:00 - ART 1930 Dec - -4:00 Arg AR%sT 1969 Oct 5 + -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Jul -3:00 - ART # @@ -133,7 +144,7 @@ Zone America/Rosario -4:02:40 - LMT 1894 Nov Zone America/Cordoba -4:16:44 - LMT 1894 Nov -4:16:44 - CMT 1920 May -4:00 - ART 1930 Dec - -4:00 Arg AR%sT 1969 Oct 5 + -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Jul -3:00 - ART # @@ -152,7 +163,7 @@ Zone America/Jujuy -4:21:12 - LMT 1894 Nov Zone America/Catamarca -4:23:08 - LMT 1894 Nov -4:16:44 - CMT 1920 May -4:00 - ART 1930 Dec - -4:00 Arg AR%sT 1969 Oct 5 + -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Jul -3:00 - ART 1991 Jul -3:00 Arg AR%sT 1992 Jul @@ -217,54 +228,32 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do # Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. -# From Paul Eggert (1996-11-22): -# Let's make the following assumptions: -# -# * All data in Shanks are correct through 1990. In particular, -# Shanks was right when he said Acre stopped observing DST in mid-1988. -# * Areas where Shanks reports DST up to 1990, but the IATA reports no DST -# in 1995, stopped observing DST in mid-1990. -# -# Under these assumptions Brazil needs 7 entries to cover all the distinct -# time zone histories since 1970: -# -# Noronha (UTC-2), Fortaleza (UTC-3), and Manaus (UTC-4) stopped observing DST -# in mid-1990. -# Maceio (UTC-3) stopped observing DST in mid-1990, but started again mid-1995. -# Sao Paulo (UTC-3) and Cuiaba (UTC-4) always observed DST. -# Porto Acre (UTC-5) stopped observing DST in mid-1988. - -# From Rodrigo Feher (1998-01-17): -# Reading "southamerica" file in timezone 7.55 I've found an -# error. Line 193 say "Territory of Acre". It is not a territory anymore -# but a state. - # From Marcos Tadeu (1998-09-27): # # Brazilian official page # # -# From Paul Eggert (1998-09-28): +# From Paul Eggert (1998-10-29): # The official decrees referenced below are taken from # # Decretos sobre o Horario de Verao no Brasil -# (1998-09-25, in Portuguese). +# (1999-10-04, in Portuguese). # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree 20,466 (1931-10-01) # Decree 21,896 (1932-01-10) -Rule Brazil 1931 only - Oct 3 11:00 1:00 D -Rule Brazil 1932 1933 - Apr 1 0:00 0 S -Rule Brazil 1932 only - Oct 3 0:00 1:00 D +Rule Brazil 1931 only - Oct 3 11:00 1:00 S +Rule Brazil 1932 1933 - Apr 1 0:00 0 - +Rule Brazil 1932 only - Oct 3 0:00 1:00 S # Decree 23,195 (1933-10-10) # revoked DST. # Decree 27,496 (1949-11-24) # Decree 27,998 (1950-04-13) -Rule Brazil 1949 1952 - Dec 1 0:00 1:00 D -Rule Brazil 1950 only - Apr 16 1:00 0 S -Rule Brazil 1951 1952 - Apr 1 0:00 0 S +Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S +Rule Brazil 1950 only - Apr 16 1:00 0 - +Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 (1953-02-24) -Rule Brazil 1953 only - Mar 1 0:00 0 S +Rule Brazil 1953 only - Mar 1 0:00 0 - # Decree 34,724 (1953-11-30) # revoked DST. # Decree 52,700 (1963-10-18) @@ -272,52 +261,52 @@ Rule Brazil 1953 only - Mar 1 0:00 0 S # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 (1963-12-03) # extended the above decree to all of the national territory on 12-09. -Rule Brazil 1963 only - Dec 9 0:00 1:00 D +Rule Brazil 1963 only - Dec 9 0:00 1:00 S # Decree 53,604 (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). -Rule Brazil 1964 only - Mar 1 0:00 0 S +Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 (1965-01-27) -Rule Brazil 1965 only - Jan 31 0:00 1:00 D -Rule Brazil 1965 only - Mar 31 0:00 0 S +Rule Brazil 1965 only - Jan 31 0:00 1:00 S +Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 (1965-11-22) -Rule Brazil 1965 only - Dec 1 0:00 1:00 D +Rule Brazil 1965 only - Dec 1 0:00 1:00 S # Decree 57,843 (1966-02-18) -Rule Brazil 1966 1968 - Mar 1 0:00 0 S -Rule Brazil 1966 1967 - Nov 1 0:00 1:00 D +Rule Brazil 1966 1968 - Mar 1 0:00 0 - +Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S # Decree 63,429 (1968-10-15) # revoked DST. # Decree 91,698 (1985-09-27) -Rule Brazil 1985 only - Nov 2 0:00 1:00 D +Rule Brazil 1985 only - Nov 2 0:00 1:00 S # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) -Rule Brazil 1986 only - Mar 15 0:00 0 S +Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) -Rule Brazil 1986 only - Oct 25 0:00 1:00 D -Rule Brazil 1987 only - Feb 14 0:00 0 S +Rule Brazil 1986 only - Oct 25 0:00 1:00 S +Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 (1987-09-22) -Rule Brazil 1987 only - Oct 25 0:00 1:00 D -Rule Brazil 1988 only - Feb 7 0:00 0 S +Rule Brazil 1987 only - Oct 25 0:00 1:00 S +Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) -Rule Brazil 1988 only - Oct 16 0:00 1:00 D -Rule Brazil 1989 only - Jan 29 0:00 0 S +Rule Brazil 1988 only - Oct 16 0:00 1:00 S +Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 (1989-08-21) # with the same exceptions -Rule Brazil 1989 only - Oct 15 0:00 1:00 D -Rule Brazil 1990 only - Feb 11 0:00 0 S +Rule Brazil 1989 only - Oct 15 0:00 1:00 S +Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. -Rule Brazil 1990 only - Oct 21 0:00 1:00 D -Rule Brazil 1991 only - Feb 17 0:00 0 S +Rule Brazil 1990 only - Oct 21 0:00 1:00 S +Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. -Rule Brazil 1991 only - Oct 20 0:00 1:00 D -Rule Brazil 1992 only - Feb 9 0:00 0 S +Rule Brazil 1991 only - Oct 20 0:00 1:00 S +Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree (1992-10-16) # adopted by same states. -Rule Brazil 1992 only - Oct 25 0:00 1:00 D -Rule Brazil 1993 only - Jan 31 0:00 0 S +Rule Brazil 1992 only - Oct 25 0:00 1:00 S +Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 (1993-09-28) # adopted by same states, plus AM. # Decree 1,252 (1994-09-22) @@ -326,13 +315,13 @@ Rule Brazil 1993 only - Jan 31 0:00 0 S # adopted by same states, plus TO. # Decree 1,674 (1995-10-13) # adds AL, SE. -Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 D -Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 S -Rule Brazil 1996 only - Feb 11 0:00 0 S +Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S +Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - +Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 (1996-09-04) # adopted by same states, minus AL, SE. -Rule Brazil 1996 only - Oct 6 0:00 1:00 D -Rule Brazil 1997 only - Feb 16 0:00 0 S +Rule Brazil 1996 only - Oct 6 0:00 1:00 S +Rule Brazil 1997 only - Feb 16 0:00 0 - # 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, @@ -347,81 +336,94 @@ Rule Brazil 1997 only - Feb 16 0:00 0 S # 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 D +Rule Brazil 1997 only - Oct 6 0:00 1:00 S # Decree 2,495 # (1998-02-10) -Rule Brazil 1998 only - Mar 1 0:00 0 S +Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 (1998-09-11) -# adopted by the same states as before, -# specifies only the 1998-10-11 and 1999-02-21 transitions; -# after that, these rules are guesses and are quite possibly wrong, -# but they are more likely than no DST at all. -Rule Brazil 1998 max - Oct Sun>=8 0:00 1:00 D -Rule Brazil 1999 max - Feb Sun>=15 0:00 0 S +# adopted by the same states as before. +Rule Brazil 1998 only - Oct 11 0:00 1:00 S +Rule Brazil 1999 only - Feb 21 0:00 0 - +# Decree 3,150 +# (1999-08-23) adopted by same states. +# Decree 3,188 (1999-09-30) +# adds SE, AL, PE, PR, RN, CE, PI, MA and RR. +# These give only one year's rules. After that, the rules are guesses +# and are quite possibly wrong, but are more likely than no DST at all. +Rule Brazil 1999 max - Oct Sun>=1 0:00 1:00 S +Rule Brazil 2000 max - Feb lastSun 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Fernando de Noronha Zone America/Noronha -2:09:40 - LMT 1914 - -2:00 Brazil F%sT 1990 Jul - -2:00 - FST + -2:00 Brazil FN%sT 1990 Sep 17 + -2:00 - FNT # -# Amapa, east Para +# Amapa (AP), east Para (PA) Zone America/Belem -3:13:56 - LMT 1914 - -3:00 Brazil E%sT 1988 Jul - -3:00 - EST + -3:00 Brazil BR%sT 1988 Sep 12 + -3:00 - BRT # -# Maranhao, Piaui, Ceara, Rio Grande do Norte, Paraiba, -# Pernambuco (except Fernando de Noronha) +# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), +# Paraiba (PB), Pernambuco (PE) (except Fernando de Noronha) Zone America/Fortaleza -2:34:00 - LMT 1914 - -3:00 Brazil E%sT 1990 Jul - -3:00 - EST + -3:00 Brazil BR%sT 1990 Sep 17 + -3:00 - BRT 1999 Sep 30 + -3:00 Brazil BR%sT # -# Tocantins +# Tocantins (TO) Zone America/Araguaina -3:12:48 - LMT 1914 - -3:00 Brazil E%sT 1990 Jul - -3:00 - EST 1995 Jul - -3:00 Brazil E%sT + -3:00 Brazil BR%sT 1990 Sep 17 + -3:00 - BRT 1995 Sep 14 + -3:00 Brazil BR%sT # -# Alagoas, Sergipe +# Alagoas (AL), Sergipe (SE) Zone America/Maceio -2:22:52 - LMT 1914 - -3:00 Brazil E%sT 1990 Jul - -3:00 - EST 1995 Jul - -3:00 Brazil E%sT 1996 Jul - -3:00 - EST -# -# Bahia, Goias, Distrito Federal, Minas Gerais, Espirito Santo, Rio de Janeiro, -# Sao Paulo, Parana, Santa Catarina, Rio Grande do Sul + -3:00 Brazil BR%sT 1990 Sep 17 + -3:00 - BRT 1995 Oct 13 + -3:00 Brazil BR%sT 1996 Sep 4 + -3:00 - BRT 1999 Sep 30 + -3:00 Brazil BR%sT +# +# Bahia (BA), 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 - -3:00 Brazil E%sT 1963 Oct 23 00:00 - -3:00 - EDT 1964 - -3:00 Brazil E%sT + -3:00 Brazil BR%sT 1963 Oct 23 00:00 + -3:00 1:00 BRST 1964 + -3:00 Brazil BR%sT # # Mato Grosso, Mato Grosso do Sul Zone America/Cuiaba -3:44:20 - LMT 1914 - -4:00 Brazil W%sT 1990 Jul - -4:00 - WST + -4:00 Brazil AM%sT # -# Roraima, west Para, Rondonia +# west Para (PA), Rondonia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 - -4:00 Brazil W%sT 1988 Jul - -4:00 - WST + -4:00 Brazil AM%sT 1988 Sep 12 + -4:00 - AMT +# +# Roraima (RR) +Zone America/Boa_Vista -4:02:40 - LMT 1914 + -4:00 Brazil AM%sT 1988 Sep 12 + -4:00 - AMT 1999 Sep 30 + -4:00 Brazil AM%sT # -# Amazonas +# Amazonas (AM) Zone America/Manaus -4:00:04 - LMT 1914 - -4:00 Brazil W%sT 1988 Jul - -4:00 - WST 1993 Jul - -4:00 Brazil W%sT 1994 Jul - -4:00 - WST + -4:00 Brazil AM%sT 1988 Sep 12 + -4:00 - AMT 1993 Sep 28 + -4:00 Brazil AM%sT 1994 Sep 22 + -4:00 - AMT # -# Acre +# Acre (AC) # Rio_Branco is too ambiguous, since there's a Rio Branco in Uruguay too. Zone America/Porto_Acre -4:31:12 - LMT 1914 - -5:00 Brazil A%sT 1988 Jul - -5:00 - AST + -5:00 Brazil AC%sT 1988 Sep 12 + -5:00 - ACT # -# Martin Vaz and Trinidade are like America/Noronha. +# Martin Vaz and Trindade are like America/Noronha. # Chile @@ -434,17 +436,23 @@ Zone America/Porto_Acre -4:31:12 - LMT 1914 # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... # (unless there's another dry season next year, I guess). +# From Julio I. Pacheco Troncoso (1999-03-18): +# Because of the same drought, the government decided to end DST later, +# on April 3, (one-time change). + # 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 1928 1932 - Apr 1 0:00 0 - +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 1928 1932 - Apr 1 0:00 0 - Rule Chile 1969 1997 - Oct Sun>=9 0:00 1:00 S -Rule Chile 1970 max - Mar Sun>=9 0:00 0 - +Rule Chile 1970 1998 - Mar Sun>=9 0:00 0 - Rule Chile 1998 only - Sep 27 0:00 1:00 S +Rule Chile 1999 only - Apr 4 0:00 0 - Rule Chile 1999 max - Oct Sun>=9 0:00 1:00 S +Rule Chile 2000 max - Mar Sun>=9 0:00 0 - # IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14; -# (1996-09) says 1998-03-08. Ignore these for now. +# (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 @@ -461,9 +469,10 @@ Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri # 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 -# Shanks (1995) estimates 1993-04-03 24:00 for this; go with IATA. Rule CO 1992 only - Dec 31 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 @@ -473,7 +482,7 @@ Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 # no information; probably like America/Bogota # Curacao -# Shanks (1995) says that Bottom and Oranjestad have been at -4:00 since +# 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. # This all predates our 1970 cutoff, though. @@ -527,22 +536,14 @@ Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -4:00 - GYT # Paraguay - -# From Bob Devine (1988-01-28): -# Paraguay: First day in October to last in March. Midnight switch?? -# Since 1980. - -# From U. S. Naval Observatory (1989-01-19): -# PARAGUAY 4 H BEHIND UTC -# PARAGUAY 3 H BEHIND UTC OCT 1, '88-MAR 31, '89 - -# From Shanks (1991): +# 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 +# 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 1978 - Oct 1 0:00 1:00 S +Rule Para 1975 1988 - Oct 1 0:00 1:00 S Rule Para 1975 1978 - Mar 1 0:00 0 - -# Shanks says 1979 was all DST. -Rule Para 1980 1991 - Apr 1 0:00 0 - -Rule Para 1980 1988 - Oct 1 0:00 1:00 S +Rule Para 1979 1991 - Apr 1 0:00 0 - Rule Para 1989 only - Oct 22 0:00 1:00 S Rule Para 1990 only - Oct 1 0:00 1:00 S Rule Para 1991 only - Oct 6 0:00 1:00 S @@ -551,9 +552,16 @@ Rule Para 1992 only - Oct 5 0:00 1:00 S Rule Para 1993 only - Mar 31 0:00 0 - Rule Para 1993 1995 - Oct 1 0:00 1:00 S Rule Para 1994 1995 - Feb lastSun 0:00 0 - -Rule Para 1996 1998 - Mar 1 0:00 0 - -Rule Para 1996 max - Oct Sun>=1 0:00 1:00 S +Rule Para 1996 only - Mar 1 0:00 0 - +# IATA SSIM (1997-09) says Mar 1; go with Shanks. +Rule Para 1997 only - Feb lastSun 0:00 0 - +Rule Para 1998 only - Mar 1 0:00 0 - +Rule Para 1996 1998 - Oct Sun>=1 0:00 1:00 S +# IATA SSIM (1999-02) says lastSat, not lastSun; (1999-09) reports no date; +# go with Shanks. Rule Para 1999 max - Feb lastSun 0:00 0 - +# IATA SSIM (2000-02) says 1999-10-10. +Rule Para 1999 max - Oct Sun>=8 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time @@ -571,8 +579,9 @@ Rule Peru 1987 only - Jan 1 0:00 1:00 S Rule Peru 1987 only - 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 - -Rule Peru 1993 only - Jan 1 0:00 1:00 S -Rule Peru 1993 only - Apr 1 0:00 0 - +# IATA is ambiguous for 1993/1995; go with Shanks. +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] Zone America/Lima -5:08:12 - LMT 1890 -5:09 - LMT 1908 Jul 28 # Lima Mean Time @@ -584,7 +593,7 @@ Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - GST # South Georgia Time # South Sandwich Is -# uninhabited +# uninhabited; scientific personnel have wintered # Suriname # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -603,7 +612,7 @@ Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. -# From Shanks (1991): +# From Shanks: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Whitman gives 1923 Oct 1; go with Shanks. Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS @@ -645,10 +654,10 @@ Rule Uruguay 1988 only - Mar 14 0:00 0 - 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, +# 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 -# Shanks's 4th edition (1995) says 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 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -- cgit v1.2.3