home *** CD-ROM | disk | FTP | other *** search
- # @(#)southamerica 4.3
-
- # 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.
-
- ###############################################################################
-
- # 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.
- # "Brazil/Acre" is for the Territory of Acre; "Brazil/DeNoronha" 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.
-
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Brazil 1987 max - Feb Sat<=14 2:00 0 S
- Rule Brazil 1987 max - Oct Sat<=28 2:00 1:00 D
-
- # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
- Zone Brazil/East -3:00 Brazil E%sT
- Zone Brazil/West -4:00 Brazil W%sT
- Zone Brazil/Acre -5:00 Brazil A%sT
- Zone Brazil/DeNoronha -2:00 Brazil F%sT
-
- ###############################################################################
-
- # Chile
-
- # From Guy Harris:
- # The OAG lists October 11, 1987 and March 12, 1988 as the starting and
- # ending dates, giving them as "estimated date(s) based on previous year."
-
- # From Bob Devine (January 28, 1988):
- # Chile has had 2nd Sunday in October to 2nd Sunday in March DST since 1977.
- # Switch is at midnight. OAG is right.
-
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Chile 1977 max - Oct Sun>=8 0:00 1:00 D
- Rule Chile 1978 max - Mar Sun>=8 0:00 0 S
-
- # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
- Zone Chile/Continental -4:00 Chile C%sT
- Zone Chile/EasterIsland -6:00 Chile E%sT
-
- ###############################################################################
-
- # 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 Arthur David Olson (January 21, 1989):
- # Still don't know time of day when switch occurs. Punt.
-
- ###############################################################################
-
- # 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 Arthur David Olson (January 21, 1989):
- # OAG, USNO and Bob have different data. Punt.
-