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southamerica (20094) southamerica (21217)
1# @(#)southamerica 7.15
1# @(#)southamerica 7.16
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (3rd edition),

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56# From Bob Devine (1988-01-28):
57# Argentina: first Sunday in October to first Sunday in April since 1976.
58# Double Summer time from 1969 to 1974. Switches at midnight.
59
60# From U. S. Naval Observatory (1988-01-199):
61# ARGENTINA 3 H BEHIND UTC
62
63# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (3rd edition),

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56# From Bob Devine (1988-01-28):
57# Argentina: first Sunday in October to first Sunday in April since 1976.
58# Double Summer time from 1969 to 1974. Switches at midnight.
59
60# From U. S. Naval Observatory (1988-01-199):
61# ARGENTINA 3 H BEHIND UTC
62
63# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
64# I am sending modifications to the Argentinian time zone table...
64# I am sending modifications to the Argentine time zone table...
65# AR was chosen because they are the ISO letters that represent Argentina.
66
67# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
68Rule Arg 1930 only - Dec 1 0:00 1:00 S
69Rule Arg 1931 only - Apr 1 0:00 0 -
70Rule Arg 1931 only - Oct 15 0:00 1:00 S
71Rule Arg 1932 1940 - Mar 1 0:00 0 -
72Rule Arg 1932 1939 - Nov 1 0:00 1:00 S

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94Rule Arg 1987 only - Feb 13 0:00 0 -
95Rule Arg 1988 only - Feb 7 0:00 0 -
96Rule Arg 1988 only - Dec 1 0:00 1:00 S
97#
98# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
99# These corrections were contributed by InterSoft Argentina S.A.,
100# obtaining the data from the:
101# Talleres de Hidrografia Naval Argentina
65# AR was chosen because they are the ISO letters that represent Argentina.
66
67# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
68Rule Arg 1930 only - Dec 1 0:00 1:00 S
69Rule Arg 1931 only - Apr 1 0:00 0 -
70Rule Arg 1931 only - Oct 15 0:00 1:00 S
71Rule Arg 1932 1940 - Mar 1 0:00 0 -
72Rule Arg 1932 1939 - Nov 1 0:00 1:00 S

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94Rule Arg 1987 only - Feb 13 0:00 0 -
95Rule Arg 1988 only - Feb 7 0:00 0 -
96Rule Arg 1988 only - Dec 1 0:00 1:00 S
97#
98# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
99# These corrections were contributed by InterSoft Argentina S.A.,
100# obtaining the data from the:
101# Talleres de Hidrografia Naval Argentina
102# (Argentinian Naval Hydrography Institute)
102# (Argentine Naval Hydrography Institute)
103#
104# Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero.
105Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
106Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
107#
108# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
109# From this moment on, the law that mandated the daylight saving
110# time corrections was derogated and no more modifications

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103#
104# Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero.
105Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
106Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
107#
108# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
109# From this moment on, the law that mandated the daylight saving
110# time corrections was derogated and no more modifications

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