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72 lines
2.7 KiB
Plaintext
72 lines
2.7 KiB
Plaintext
# %W%
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# From Official Airline Guide - Worldwide Edition (1987). Countries not
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# listed here do not observe DST, according to the OAG. Time zone names
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# are pure inventions, and none are supplied for countries not observing
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# DST; updates from natives would be appreciated. The times that DST
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# starts and ends are based on the assumption that they switch a 2AM just
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# as everybody else does.
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###############################################################################
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# Brazil
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# The OAG lists October 25, 1987 and February 12, 1988 as the starting and
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# ending dates, giving them as "estimated date(s) based on previous year". We
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# infer a rule here from one example, always a dangerous practice.... Yes,
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# they really do switch on Saturday, according to the OAG.
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# "Brazil/Acre" is for the Territory of Acre; "Brazil/DeNoronha" is for
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# Fernando De Noronha.
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# From Bob Devine (January 28, 1988): "The only information I found is that
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# there was no DST up to 1985. But there was some before 1952!"
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# From U.S. Naval Observatory (February 10, 1988):
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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Rule Brazil 1987 max - Feb Sat<=14 2:00 0 S
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Rule Brazil 1987 max - Oct Sat<=28 2:00 1:00 D
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# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
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Zone Brazil/East -3:00 Brazil E%sT
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Zone Brazil/West -4:00 Brazil W%sT
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Zone Brazil/Acre -5:00 Brazil A%sT
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Zone Brazil/DeNoronha -2:00 Brazil F%sT
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###############################################################################
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# Chile
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# The OAG lists October 11, 1987 and March 12, 1988 as the starting and
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# ending dates, giving them as "estimated date(s) based on previous year."
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# From Bob Devine (January 28, 1988): "Chile has had 2nd Sunday in October to
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# 2nd Sunday in March DST since 1977. Switch is at midnight. OAG is right."
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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Rule Chile 1977 max - Oct Sun>=8 0:00 1:00 D
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Rule Chile 1978 max - Mar Sun>=8 0:00 0 S
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# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
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Zone Chile/Continental -4:00 Chile C%sT
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Zone Chile/EasterIsland -6:00 Chile E%sT
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###############################################################################
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# Paraguay
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# From Bob Devine (January 28, 1988): "Paraguay: First day in October to last
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# in March. Midnight switch?? Since 1980."
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# From U.S. Naval Observatory (February 10, 1988):
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###############################################################################
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# Argentina
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# From Bob Devine (January 28, 1988): "Argentina: first Sunday in October to
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# first Sunday in April since 1976. Double Summer time from 1969 to 1974.
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# Switches at midnight.
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# From U.S. Naval Observatory (February 10, 1988):
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# ARGENTINA 3 H BEHIND UTC
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# (No mention of DST).
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