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Diffstat (limited to 'time/southamerica')
| -rw-r--r-- | time/southamerica | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/time/southamerica b/time/southamerica deleted file mode 100644 index f53355c4c0..0000000000 --- a/time/southamerica +++ /dev/null @@ -1,555 +0,0 @@ -# @(#)southamerica 7.22 - -# 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> (1996-11-22): -# A good source for time zone historical data outside the U.S. is -# Thomas G. Shanks, The International Atlas (3rd edition), -# San Diego: ACS Publications, Inc. (1991). -# -# Gwillim Law <LAW@encmail.encompass.com> 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 -# 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. -# -# 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). -# I suggest the use of _Summer time_ instead of the more cumbersome -# _daylight-saving time_. _Summer time_ seems to be in general use -# 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. - -############################################################################### - -############################################################################### - -# Argentina - -# From Bob Devine (1988-01-28): -# Argentina: first Sunday in October to first Sunday in April since 1976. -# Double Summer time from 1969 to 1974. Switches at midnight. - -# From U. S. Naval Observatory (1988-01-199): -# ARGENTINA 3 H BEHIND UTC - -# From Hernan G. Otero <hernan@isoft.com.ar> (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. - -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Arg 1930 only - Dec 1 0:00 1:00 S -Rule Arg 1931 only - Apr 1 0:00 0 - -Rule Arg 1931 only - Oct 15 0:00 1:00 S -Rule Arg 1932 1940 - Mar 1 0:00 0 - -Rule Arg 1932 1939 - Nov 1 0:00 1:00 S -Rule Arg 1940 only - Jul 1 0:00 1:00 S -Rule Arg 1941 only - Jun 15 0:00 0 - -Rule Arg 1941 only - Oct 15 0:00 1:00 S -Rule Arg 1943 only - Aug 1 0:00 0 - -Rule Arg 1943 only - Oct 15 0:00 1:00 S -Rule Arg 1946 only - Mar 1 0:00 0 - -Rule Arg 1946 only - Oct 1 0:00 1:00 S -Rule Arg 1963 only - Oct 1 0:00 0 - -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 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 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 -Rule Arg 1987 only - Feb 13 0:00 0 - -Rule Arg 1988 only - Feb 7 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): -# These corrections were contributed by InterSoft Argentina S.A., -# obtaining the data from the: -# Talleres de Hidrografia Naval Argentina -# (Argentine Naval Hydrography Institute) -# -# Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; 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 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. -# -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -# -# Buenos Aires (BA), Distrito Federal (DF), Santa Cruz (SC), -# Tierra del Fuego (TF) & Antartida e Islas -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 - -3:00 Arg AR%sT -# -# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), -# Formosa (FM), La Pampa (LP), Chubut (CH) -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 - -3:00 Arg AR%sT 1991 Jul - -3:00 - ART -# -# Cordoba (CB), Santiago del Estero (SE), Salta (SA), Tucuman (TM), La Rioja (LR), San Juan (SJ), San Luis (SL), -# Neuquen (NQ), Rio Negro (RN) -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 - -3:00 Arg AR%sT 1990 Jul - -3:00 - ART -# -# Jujuy (JY) -Zone America/Jujuy -4:21:12 - LMT 1894 Nov - -4:16:44 - 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 6 - -4:00 1:00 WARST 1992 Mar 15 - -4:00 - WART 1992 Oct 18 - -3:00 - ART -# -# Catamarca (CT) -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 - -3:00 Arg AR%sT 1990 Jul - -3:00 - ART 1991 Jul - -3:00 Arg AR%sT 1992 Jul - -3:00 - ART -# -# Mendoza (MZ) -Zone America/Mendoza -4:35:16 - LMT 1894 Nov - -4:16:44 - 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 15 - -4:00 1:00 WARST 1992 Mar 1 - -4:00 - WART 1992 Oct 18 - -3:00 - ART - -# Aruba -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad - -4:30 - ANT 1965 # Netherlands Antilles Time - -4:00 - AST - -# Bolivia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/La_Paz -4:32:36 - LMT 1890 - -4:32:36 - LPMT 1931 Oct 15 # La Paz Mean Time - -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST - -4:00 - BOT # Bolivia Time - -# Brazil - -# From Guy Harris: -# The OAG lists 1987-10-25 and 1988-02-12 as the starting and -# ending dates, giving them as "estimated date(s) based on previous year". We -# infer a rule here from one example, always a dangerous practice.... Yes, -# they really do switch on Saturday, according to the OAG. -# "[America/Porto_Acre]" is for the [State] of Acre; -# "[America/Noronha]" is for Fernando De Noronha. - -# From Paul Eggert <eggert@twinsun.com> (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; -# the federal government refused to follow the city's rules, and business -# was in a chaos, so the mayor backed down that afternoon. - -# From IATA SSIM (1996-02): -# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), -# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), -# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), -# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. -# [The last three states are new to this issue of the IATA SSIM.] - -# From Gwillim Law (1996-10-07): -# Geography, history (Tocantins was part of Goias until 1989), and other -# sources of time zone information lead me to believe that AL, SE, and TO were -# always in BR1, and so the only change was whether or not they observed DST.... -# The earliest issue of the SSIM I have is 2/91. Each issue from then until -# 9/95 says that DST is observed only in the ten states I quoted from 9/95, -# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 -# (UTC-4).... The other two time zones given for Brazil are BR3, which is -# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is -# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's -# become part of the state of Pernambuco). The boundary between BR1 and BR2 -# has never been clearly stated. They've simply been called East and West. -# However, some conclusions can be drawn from another IATA manual: the Airline -# Coding Directory, which lists close to 400 airports in Brazil. For each -# airport it gives a time zone which is coded to the SSIM. From that -# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), -# 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 <feher@pobox.com> (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. - -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -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 1949 1952 - Dec 1 0:00 1:00 D -Rule Brazil 1950 only - Apr 16 0:00 0 S -Rule Brazil 1951 1953 - Apr 1 0:00 0 S -Rule Brazil 1963 only - Dec 9 0:00 1:00 D -Rule Brazil 1964 only - Mar 1 0:00 0 S -Rule Brazil 1965 only - Jan 31 0:00 1:00 D -Rule Brazil 1965 only - Apr 1 0:00 0 S -Rule Brazil 1965 only - Dec 1 0:00 1:00 D -Rule Brazil 1966 1968 - Mar 1 0:00 0 S -Rule Brazil 1966 1967 - Nov 1 0:00 1:00 D -Rule Brazil 1985 only - Nov 2 0:00 1:00 D -Rule Brazil 1986 only - Mar 15 0:00 0 S -Rule Brazil 1986 1987 - Oct Sat<=28 0:00 1:00 D -Rule Brazil 1987 only - Feb 14 0:00 0 S -Rule Brazil 1988 only - Feb 7 0:00 0 S -Rule Brazil 1989 only - Jan 22 0:00 0 S -Rule Brazil 1988 1989 - Oct Sun>=10 0:00 1:00 D -Rule Brazil 1990 1991 - Feb Sun>=11 0:00 0 S -Rule Brazil 1990 1992 - Oct Sun>=20 0:00 1:00 D -Rule Brazil 1992 only - Feb 9 0:00 0 S -Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 D -Rule Brazil 1993 only - Jan 31 0:00 0 S -Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 S -Rule Brazil 1996 max - Feb Sun>=11 0:00 0 S -Rule Brazil 1996 max - Oct Sun>=1 0:00 1:00 D - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -# -# Fernando de Noronha -Zone America/Noronha -2:09:40 - LMT 1914 - -2:00 - FST 1963 Dec 9 - -2:00 Brazil F%sT 1990 Jul - -2:00 - FST -# -# Amapa, east Para, Maranhao, Piaui, Ceara, Rio Grande do Norte, Paraiba, -# Pernambuco (except Fernando de Noronha) -Zone America/Fortaleza -2:34:00 - LMT 1914 - -3:00 - EST 1963 Dec 9 - -3:00 Brazil E%sT 1990 Jul - -3:00 - EST -# -# Alagoas, Sergipe, Tocantins -Zone America/Maceio -2:22:52 - LMT 1914 - -3:00 - EST 1963 Dec 9 - -3:00 Brazil E%sT 1990 Jul - -3:00 - EST 1995 Jul - -3:00 Brazil E%sT -# -# Bahia, Goias, Distrito Federal, Minas Gerais, Espirito Santo, Rio de Janeiro, -# Sao Paulo, Parana, Santa Catarina, Rio Grande do Sul -Zone America/Sao_Paulo -3:06:28 - LMT 1914 - -3:00 Brazil E%sT -# -# Mato Grosso, Mato Grosso do Sul -Zone America/Cuiaba -3:44:20 - LMT 1914 - -4:00 - WST 1963 Dec 9 - -4:00 Brazil W%sT -# -# Roraima, west Para, Amazonas, Rondonia -Zone America/Manaus -4:00:04 - LMT 1914 - -4:00 - WST 1963 Dec 9 - -4:00 Brazil W%sT 1990 Jul - -4:00 - WST -# -# Acre -# 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 - AST 1963 Dec 9 - -5:00 Brazil A%sT 1988 Jul - -5:00 - AST -# -# Martin Vaz and Trinidade are like America/Noronha. - - -# Chile - -# From Eduardo Krell (1995-10-19): -# The law says to switch to DST at midnight [24:00] on the second SATURDAY -# of October.... The law is the same for March and October. - -# 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 1969 max - Oct Sun>=9 0:00 1:00 S -Rule Chile 1970 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. -# 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 - -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 - -6:00 Chile EAS%sT -# -# Whitman says Juan Fernandez Is are like America/Santiago. -# San Ambrosio, San Felix -# no information; probably like America/Santiago - - -# Colombia -# 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 - -# 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 - -5:00 CO CO%sT # Colombia Time -# Malpelo, Providencia, San Andres -# no information; probably like America/Bogota - -# Curacao -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad - -4:30 - ANT 1965 # Netherlands Antilles Time - -4:00 - AST - -# Ecuador -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Guayaquil -5:19:20 - LMT 1890 - -5:14:00 - QMT 1931 # Quito Mean Time - -5:00 - ECT # Ecuador Time -Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno - -5:00 - ECT 1986 - -6:00 - GALT # Galapagos Time - -# Falklands -# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S -Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - -Rule Falk 1939 only - Oct 1 0:00 1:00 S -Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S -Rule Falk 1943 only - Jan 1 0:00 0 - -Rule Falk 1983 only - Sep lastSun 0:00 1:00 S -Rule Falk 1984 1985 - Apr lastSun 0:00 0 - -Rule Falk 1984 only - Sep 16 0:00 1:00 S -Rule Falk 1985 1995 - Sep Sun>=9 0:00 1:00 S -Rule Falk 1986 max - Apr Sun>=16 0:00 0 - -Rule Falk 1996 max - Sep Sun>=8 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/Stanley -3:51:24 - LMT 1890 - -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time - -4:00 Falk FK%sT 1983 May # Falkland Is Time - -3:00 Falk FK%sT 1985 Sep 15 - -4:00 Falk FK%sT - -# French Guiana -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Cayenne -3:29:20 - LMT 1911 Jul - -4:00 - GFT 1967 Oct # French Guiana Time - -3:00 - GFT - -# Guyana -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown - -3:45 - GBGT 1966 May 26 # Br Guiana Time - -3:45 - GYT 1975 Jul 31 # Guyana Time - -3:00 - GYT 1991 -# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. - -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): -# 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 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 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 -Rule Para 1992 only - Mar 1 0:00 0 - -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 max - Mar 1 0:00 0 - -Rule Para 1996 only - Oct 6 0:00 1:00 S -Rule Para 1997 max - Oct 1 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 - -4:00 - PYT 1972 Oct # Paraguay Time - -3:00 - PYT 1974 Apr - -4:00 Para PY%sT - -# Peru -# 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 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 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Lima -5:08:12 - LMT 1890 - -5:09 - LMT 1908 Jul 28 # Lima Mean Time - -5:00 Peru PE%sT # Peru Time - -# South Georgia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken - -2:00 - GST # South Georgia Time - -# South Sandwich Is -# uninhabited - -# Suriname -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Paramaribo -3:40:40 - LMT 1911 - -3:40:52 - PMT 1935 # Paramaribo Mean Time - -3:40:36 - PMT 1945 Oct # The capital moved? - -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time - -3:30 - SRT 1984 Oct # Suriname Time - -3:00 - SRT - -# Trinidad and Tobago -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 - -4:00 - AST - -# Uruguay -# From Paul Eggert <eggert@twinsun.com> (1993-11-18): -# Uruguay wins the prize for the strangest peacetime manipulation of the rules. -# From Shanks (1991): -# 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 -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. -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. -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 -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 -Rule Uruguay 1959 only - Nov 15 0:00 0 - -Rule Uruguay 1960 only - Jan 17 0:00 1:00 S -Rule Uruguay 1960 only - Mar 6 0:00 0 - -Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S -Rule Uruguay 1965 only - Sep 26 0:00 0 - -Rule Uruguay 1966 1967 - Oct 31 0:00 0 - -Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS -Rule Uruguay 1968 1970 - Dec 2 0:00 0 - -Rule Uruguay 1972 only - Apr 24 0:00 1:00 S -Rule Uruguay 1972 only - Aug 15 0:00 0 - -Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS -Rule Uruguay 1974 only - Dec 22 0:00 1:00 S -Rule Uruguay 1976 only - Oct 1 0:00 0 - -Rule Uruguay 1977 only - Dec 4 0:00 1:00 S -Rule Uruguay 1978 only - Apr 1 0:00 0 - -Rule Uruguay 1979 only - Oct 1 0:00 1:00 S -Rule Uruguay 1980 only - May 1 0:00 0 - -Rule Uruguay 1987 only - Dec 14 0:00 1:00 S -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 -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] -Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 - -3:44:44 - MMT 1920 May 1 # Montevideo MT - -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time - -3:00 Uruguay UY%sT - -# Venezuela -# Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Caracas -4:27:44 - LMT 1890 - -4:27:44 - CMT 1912 Feb 12 # Caracas Mean Time - -4:30 - VET 1965 # Venezuela Time - -4:00 - VET |