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freebsd-skq/share/zoneinfo/southamerica
wollman 216a3608a8 Merged the latest timezone data file release. 
Changed zones: Algeria, Egypt, Ghana, Libya, Morocco, Sierra Leone,
  South Africa, Sudan, Tunisia, Armenia, Myanmar, China, Taiwan, Hong
  Kong, Macao, Cyprus, Georgia, Iran, Israel, Jordan, Kazakhstan,
  Kirgizstan, Lebanon, Mongolia, the Phillippines, Syria, Tajikistan,
  Turkmenistan, Uzbekistan, Australia, Kiribati, New Caledonia, New
  Zealand, Vanuatu, the United Kingdom, Ireland, the Czech Republic,
  Finland, France, Greece, Hungary, Iceland, Italy, Luxembourg, the
  Netherlands, Norway, Portugal, Romania, Spain, Switzerland, Turkey,
  Canada, Mexico, the Bahamas, Barbados, Belize, Costa Rica, Cuba, the
  Dominican Republic, El Salvador, Guatemala, Haiti, Nicaragua,
  Brazil, the Falkland Islands, Paraguay

Deleted zones: Asia/Tomsk (superseded by Asia/Krasnoyarsk)

Added zones: Asia/Aktau (area formerly part of Asia/Alma-Ata);
  Asia/Krasnoyarsk (supersedes Asia/Tomsk); America/Glace_Bay (area
  formerly part of America/Halifax); America/Thunder_Bay,
  America/Nipigon, America/Rainy_River (areas formerly covered by
  America/Montreal); America/Swift_Current (area formerly part of
  America/Regina); America/Dawson_Creek (area formerly part of
  America/Vancouver); America/Pangnirtung, America/Iqaluit,
  America/Rankin_Inlet, America/Yellowknife, America/Inuvik,
  America/Dawson (areas formerly part of America/Whitehorse)
1996-07-17 20:07:52 +00:00

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# @(#)southamerica 7.12
# 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> (November 18, 1993):
# 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).
# Except where otherwise noted, it is the source for the data below.
#
# I invented the abbreviations marked `*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Some of these are just plausible excuses for common English abbreviations.
# Corrections are welcome!
# std dst
# LMT Local Mean Time
# -2:00 FST FDT Fernando de Noronha
# -3:00 EST EDT Eastern South America (conflicts with -5:00)
# -3:00 ARST ARDT Argentina
# -4:00 AST ADT Andes*, Antilles*, Asuncion*, Atlantic
# -4:00 CST CDT Chile (conflicts with -6:00)
# -4:00 WST WDT Western Brazil
# -5:00 AST ADT Acre (conflicts with -4:00)
# -5:00 EST EDT Eastern, Ecuador*
# -6:00 CST CDT Archipelago of Columbus*, Central
# -7:00 MST MDT Mataveri*, Mountain
#
# See the `africa' file for Zone naming conventions.
# 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 (January 28, 1988):
# 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 (January 19, 19889):
# ARGENTINA 3 H BEHIND UTC
# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
# I am sending modifications to the Argentinian 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 D
Rule Arg 1931 only - Apr 1 0:00 0 S
Rule Arg 1931 only - Oct 15 0:00 1:00 D
Rule Arg 1932 1940 - Mar 1 0:00 0 S
Rule Arg 1932 1939 - Nov 1 0:00 1:00 D
Rule Arg 1940 only - Jul 1 0:00 1:00 D
Rule Arg 1941 only - Jun 15 0:00 0 S
Rule Arg 1941 only - Oct 15 0:00 1:00 D
Rule Arg 1943 only - Aug 1 0:00 0 S
Rule Arg 1943 only - Oct 15 0:00 1:00 D
Rule Arg 1946 only - Mar 1 0:00 0 S
Rule Arg 1946 only - Oct 1 0:00 1:00 D
Rule Arg 1963 only - Oct 1 0:00 0 S
Rule Arg 1963 only - Dec 15 0:00 1:00 D
Rule Arg 1964 1966 - Mar 1 0:00 0 S
Rule Arg 1964 1966 - Oct 15 0:00 1:00 D
Rule Arg 1967 only - Apr 1 0:00 0 S
Rule Arg 1967 1968 - Oct Sun<=7 0:00 1:00 D
Rule Arg 1968 1969 - Apr Sun<=7 0:00 0 S
Rule Arg 1974 only - Jan 23 0:00 1:00 D
Rule Arg 1974 only - May 1 0:00 0 S
Rule Arg 1974 1976 - Oct Sun<=7 0:00 1:00 D
Rule Arg 1975 1977 - Apr Sun<=7 0:00 0 S
Rule Arg 1985 only - Nov 2 0:00 1:00 D
Rule Arg 1986 only - Mar 14 0:00 0 S
Rule Arg 1986 1987 - Oct 25 0:00 1:00 D
Rule Arg 1987 only - Feb 13 0:00 0 S
Rule Arg 1988 only - Feb 7 0:00 0 S
Rule Arg 1988 only - Dec 1 0:00 1:00 D
#
# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
# These corrections were contributed by InterSoft Argentina S.A.,
# obtaining the data from the:
# Talleres de Hidrografia Naval Argentina
# (Argentinian 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 S
Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 D
#
# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
# 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]
Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov
-4:17 - CMT 1920 May # Cordoba Mean Time
-4:00 - AST 1930 Dec
-4:00 Arg A%sT 1969 Oct 5
-3:00 Arg AR%sT
# ZONE-DESCR America Buenos_Aires Argentina All points
# Aruba
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
-4:30 - NAST 1965 # Netherlands Antilles
-4:00 - AST
# ZONE-DESCR America Aruba All points
# what to do about overseas terrirories...?
# Bolivia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/La_Paz -4:32:36 - LMT 1890
-4:33 - LPMT 1931 Oct 15 # La Paz Mean Time
-4:33 1:00 LPDT 1932 Mar 21
-4:00 - AST
# ZONE-DESCR America La_Paz Bolivia All points
# Brazil
# From Guy Harris:
# The OAG lists October 25, 1987 and February 12, 1988 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 Territory of Acre;
# "[America/Noronha]" is for Fernando De Noronha.
# From Bob Devine (January 28, 1988):
# The only information I found is that there was no DST up to 1985.
# But there was some before 1952!
# From U. S. Naval Observatory (January 16, 1989):
# BRAZIL WEST 5 H BEHIND UTC TERRITORY OF ACRE
# BRAZIL WEST 4 H BEHIND UTC ACRE OCT 23, '88-FEB 11,
# BRAZIL '89 (ESTIMATED)
# BRAZIL CENTRAL 4 H BEHIND UTC MANAUS
# BRAZIL CENTRAL 3 H BEHIND UTC MANAUS OCT 23, '88-FEB 11,
# BRAZIL CENTRAL '89 (ESTIMATED)
# BRAZIL EAST 3 H BEHIND UTC COASTAL STATES, RIO, SAO
# BRAZIL EAST PAULO, BRASILIA
# BRAZIL EAST 2 H BEHIND UTC COASTAL STATES, RIO, SAO
# BRAZIL PAULO, BRASILIA OCT 23,
# BRAZIL '88-FEB 11, '89
# BRAZIL (ESTIMATED)
# BRAZIL 2 H BEHIND UTC ATLANTIC ISLANDS, FERNANDO
# BRAZIL DE NORONHA
# BRAZIL 1 H BEHIND UTC OCT 23, '88-FEB 11, '89
# BRAZIL (ESTIMATED)
# BRAZIL 3 H BEHIND UTC FOR MOST MAJOR AIRPORTS.
# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
# 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.
# Shanks claims Acre stopped observing DST after 1988 Feb 7, but it
# could just be that his table ran out of room. We're extrapolating
# about time zone changes after 1990 Feb 11.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Brazil 1931 only - Oct 3 11:00 1 D
Rule Brazil 1932 1933 - Apr 1 0:00 0 S
Rule Brazil 1932 only - Oct 3 0:00 1 D
Rule Brazil 1949 1952 - Dec 1 0:00 1 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 D
Rule Brazil 1964 only - Mar 1 0:00 0 S
Rule Brazil 1965 only - Jan 31 0:00 1 D
Rule Brazil 1965 only - Apr 1 0:00 0 S
Rule Brazil 1965 only - Dec 1 0:00 1 D
Rule Brazil 1966 1968 - Mar 1 0:00 0 S
Rule Brazil 1966 1967 - Nov 1 0:00 1 D
Rule Brazil 1985 only - Nov 2 0:00 1 D
Rule Brazil 1986 only - Mar 15 0:00 0 S
Rule Brazil 1986 1987 - Oct Sat<=28 0:00 1 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 max - Oct Sun>=15 0:00 1 D
Rule Brazil 1990 max - Feb Sun>=8 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Noronha -2:09:40 - LMT 1914
-2:00 - FST 1963 Dec 9
-2:00 Brazil F%sT
Zone America/Sao_Paulo -3:06:28 - LMT 1914
-3:00 Brazil E%sT
Zone America/Manaus -4:00:04 - LMT 1914
-4:00 - WST 1963 Dec 9
-4:00 Brazil W%sT
# 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
#
# Martin Vaz and Trinidade are like America/Noronha.
# ZONE-DESCR America Noronha Brazil Fernando De Noronha
# ZONE-DESCR America Sao_Paulo Brazil Eastern zone
# ZONE-DESCR America Manaus Brazil Western zone
# ZONE-DESCR America Porto_Acre Brazil Territory of Acre
# 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 D
Rule Chile 1919 only - Jul 2 0:00 0 S
Rule Chile 1927 1931 - Sep 1 0:00 1:00 D
Rule Chile 1928 1932 - Apr 1 0:00 0 S
Rule Chile 1969 max - Oct Sun>=9 0:00 1:00 D
Rule Chile 1970 max - Mar Sun>=9 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Santiago -4:42:40 - LMT 1890
-4:43 - SMT 1910 # Santiago Mean Time
-5:00 Chile C%sT 1932 Sep
-4:00 Chile C%sT
Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri
-7:17 - MMT 1932 Sep # Mataveri Mean Time
-7:00 Chile M%sT 1982 Mar 14
-6:00 Chile C%sT
#
# Whitman says Juan Fernandez Is are like America/Santiago.
# San Ambrosio, San Felix
# no information; probably like America/Santiago
# ZONE-DESCR America Santiago Chile All points
# ZONE-DESCR Pacific Easter Easter_Island All points
# Colombia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Bogota -4:56:20 - LMT 1884 Mar 13
-4:56 - BMT 1914 Nov 23 # Bogota Mean Time
-5:00 - EST
# Malpelo, Providencia, San Andres
# no information; probably like America/Bogota
# ZONE-DESCR America Bogota Colombia All points
# Curacao
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad
-4:30 - NAST 1965 # Netherlands Antilles
-4:00 - AST
# ZONE-DESCR America Curacao Curacao All points
# Ecuador
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Guayaquil -5:19:20 - LMT 1890
-5:14 - QMT 1931 # Quito Mean Time
-5:00 - EST
Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
-5:00 - EST 1986
-6:00 - CST
# ZONE-DESCR America Guayaquil Ecuador All points except:
# ZONE-DESCR Pacific Galapagos Ecuador Galapagos Islands
# Falklands
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 D
Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 S
Rule Falk 1939 only - Oct 1 0:00 1:00 D
Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 D
Rule Falk 1943 only - Jan 1 0:00 0 S
Rule Falk 1983 only - Sep lastSun 0:00 1:00 D
Rule Falk 1984 1985 - Apr lastSun 0:00 0 S
Rule Falk 1984 only - Sep 16 0:00 1:00 D
Rule Falk 1985 max - Sep Sun>=9 0:00 1:00 D
Rule Falk 1986 max - Apr Sun>=16 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Atlantic/Stanley -3:51:24 - LMT 1890
-3:51 - SMT 1912 Mar 12 # Stanley Mean Time
-4:00 Falk A%sT 1983 May
-3:00 Falk E%sT 1985 Sep 15
-4:00 Falk A%sT
# ZONE-DESCR Atlantic Stanley Falkland_Islands All points
# French Guiana
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Cayenne -3:29:20 - LMT 1911 Jul
-4:00 - AST 1967 Oct
-3:00 - EST
# ZONE-DESCR America Cayenne French_Guiana All points
# Guyana
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
-3:45 - BGST 1975 Jul 31 # British Guiana ST
-3:00 - EST
# ZONE-DESCR America Guyana Guyana All points
# Paraguay
# From Bob Devine (January 28, 1988):
# Paraguay: First day in October to last in March. Midnight switch??
# Since 1980.
# From U. S. Naval Observatory (January 19, 1989):
# 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 D
Rule Para 1975 1978 - Mar 1 0:00 0 S
# Shanks says 1979 was all DST.
Rule Para 1980 max - Apr 1 0:00 0 S
Rule Para 1980 1988 - Oct 1 0:00 1:00 D
Rule Para 1989 only - Oct 22 0:00 1:00 D
Rule Para 1990 max - Oct 1 0:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Asuncion -3:50:40 - LMT 1890
-3:51 - AMT 1931 Oct 10 # Asuncion Mean Time
-4:00 - AST 1972 Oct
-3:00 - EST 1974 Apr
-4:00 Para A%sT
# ZONE-DESCR America Asuncion Paraguay All points
# Peru
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Peru 1938 only - Jan 1 0:00 1:00 D
Rule Peru 1938 only - Apr 1 0:00 0 S
Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 D
Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 S
Rule Peru 1987 only - Jan 1 0:00 1:00 D
Rule Peru 1987 only - Apr 1 0:00 0 S
Rule Peru 1990 only - Jan 1 0:00 1:00 D
Rule Peru 1990 only - Apr 1 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Lima -5:08:12 - LMT 1890
-5:09 - LMT 1908 Jul 28
-5:00 Peru E%sT
# ZONE-DESCR America Lima Peru All points
# South Georgia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
-2:00 - FST
# ZONE-DESCR Atlantic South_Georgia South_Georgia All points
# 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 - DGST 1984 Oct # Dutch Guiana Std Time
-3:00 - EST
# ZONE-DESCR America Paramaibo Suriname All points
# Trinidad and Tobago
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
-4:00 - AST
# ZONE-DESCR America Port_of_Spain Trinidad_and_Tobago All points
# Uruguay
# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
# 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 HD
Rule Uruguay 1924 1926 - Apr 1 0:00 0 S
Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HD
Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HD
# 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 S
Rule Uruguay 1936 only - Nov 1 0:00 0:30 HD
Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 S
# Whitman gives 1937 Oct 3; go with Shanks.
Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HD
# 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 S
Rule Uruguay 1942 only - Jan 1 0:00 0:30 HD
Rule Uruguay 1942 only - Dec 14 0:00 1:00 D
Rule Uruguay 1943 only - Mar 14 0:00 0 S
Rule Uruguay 1959 only - May 24 0:00 1:00 D
Rule Uruguay 1959 only - Nov 15 0:00 0 S
Rule Uruguay 1960 only - Jan 17 0:00 1:00 D
Rule Uruguay 1960 only - Mar 6 0:00 0 S
Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 D
Rule Uruguay 1965 only - Sep 26 0:00 0 S
Rule Uruguay 1966 1967 - Oct 31 0:00 0 S
Rule Uruguay 1968 1970 - May 27 0:00 0:30 HD
Rule Uruguay 1968 1970 - Dec 2 0:00 0 S
Rule Uruguay 1972 only - Apr 24 0:00 1:00 D
Rule Uruguay 1972 only - Aug 15 0:00 0 S
Rule Uruguay 1974 only - Mar 10 0:00 0:30 HD
Rule Uruguay 1974 only - Dec 22 0:00 1:00 D
Rule Uruguay 1976 only - Oct 1 0:00 0 S
Rule Uruguay 1977 only - Dec 4 0:00 1:00 D
Rule Uruguay 1978 only - Apr 1 0:00 0 S
Rule Uruguay 1979 only - Oct 1 0:00 1:00 D
Rule Uruguay 1980 only - May 1 0:00 0 S
Rule Uruguay 1987 only - Dec 14 0:00 1:00 D
Rule Uruguay 1988 only - Mar 14 0:00 0 S
Rule Uruguay 1988 only - Dec 11 0:00 1:00 D
Rule Uruguay 1989 only - Mar 12 0:00 0 S
Rule Uruguay 1989 only - Oct 29 0:00 1:00 D
Rule Uruguay 1990 only - Mar 4 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
-3:45 - MMT 1920 May 1 # Montevideo MT
-3:30 Uruguay U%sT 1942 Dec 14 # Uruguay ST
-3:00 Uruguay E%sT
# ZONE-DESCR America Montevideo Uruguay All points
# Venezuela
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Caracas -4:27:44 - LMT 1890
-4:28 - CMT 1912 Feb 12 # Caracas Mean Time
-4:30 - VZT 1965 # Venezuela Time
-4:00 - AST
# ZONE-DESCR America Caracas Venezuela All points
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