1# @(#)southamerica 4.3 2 3# From Guy Harris: 4# From Official Airline Guide - Worldwide Edition (1987). Countries not 5# listed here do not observe DST, according to the OAG. Time zone names 6# are pure inventions, and none are supplied for countries not observing 7# DST; updates from natives would be appreciated. The times that DST 8# starts and ends are based on the assumption that they switch a 2AM just 9# as everybody else does. 10 11############################################################################### 12 13# Brazil 14 15# From Guy Harris: 16# The OAG lists October 25, 1987 and February 12, 1988 as the starting and 17# ending dates, giving them as "estimated date(s) based on previous year". We 18# infer a rule here from one example, always a dangerous practice.... Yes, 19# they really do switch on Saturday, according to the OAG. 20# "Brazil/Acre" is for the Territory of Acre; "Brazil/DeNoronha" is for 21# Fernando De Noronha. 22 23# From Bob Devine (January 28, 1988): 24# The only information I found is that there was no DST up to 1985. 25# But there was some before 1952! 26 27# From U. S. Naval Observatory (January 16, 1989): 28# BRAZIL WEST 5 H BEHIND UTC TERRITORY OF ACRE 29# BRAZIL WEST 4 H BEHIND UTC ACRE OCT 23, '88-FEB 11, 30# BRAZIL '89 (ESTIMATED) 31# BRAZIL CENTRAL 4 H BEHIND UTC MANAUS 32# BRAZIL CENTRAL 3 H BEHIND UTC MANAUS OCT 23, '88-FEB 11, 33# BRAZIL CENTRAL '89 (ESTIMATED) 34# BRAZIL EAST 3 H BEHIND UTC COASTAL STATES, RIO, SAO 35# BRAZIL EAST PAULO, BRASILIA 36# BRAZIL EAST 2 H BEHIND UTC COASTAL STATES, RIO, SAO 37# BRAZIL PAULO, BRASILIA OCT 23, 38# BRAZIL '88-FEB 11, '89 39# BRAZIL (ESTIMATED) 40# BRAZIL 2 H BEHIND UTC ATLANTIC ISLANDS, FERNANDO 41# BRAZIL DE NORONHA 42# BRAZIL 1 H BEHIND UTC OCT 23, '88-FEB 11, '89 43# BRAZIL (ESTIMATED) 44# BRAZIL 3 H BEHIND UTC FOR MOST MAJOR AIRPORTS. 45 46# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 47Rule Brazil 1987 max - Feb Sat<=14 2:00 0 S 48Rule Brazil 1987 max - Oct Sat<=28 2:00 1:00 D 49 50# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] 51Zone Brazil/East -3:00 Brazil E%sT 52Zone Brazil/West -4:00 Brazil W%sT 53Zone Brazil/Acre -5:00 Brazil A%sT 54Zone Brazil/DeNoronha -2:00 Brazil F%sT 55 56############################################################################### 57 58# Chile 59 60# From Guy Harris: 61# The OAG lists October 11, 1987 and March 12, 1988 as the starting and 62# ending dates, giving them as "estimated date(s) based on previous year." 63 64# From Bob Devine (January 28, 1988): 65# Chile has had 2nd Sunday in October to 2nd Sunday in March DST since 1977. 66# Switch is at midnight. OAG is right. 67 68# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 69Rule Chile 1977 max - Oct Sun>=8 0:00 1:00 D 70Rule Chile 1978 max - Mar Sun>=8 0:00 0 S 71 72# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] 73Zone Chile/Continental -4:00 Chile C%sT 74Zone Chile/EasterIsland -6:00 Chile E%sT 75 76############################################################################### 77 78# Paraguay 79 80# From Bob Devine (January 28, 1988): 81# Paraguay: First day in October to last in March. Midnight switch?? 82# Since 1980. 83 84# From U. S. Naval Observatory (January 19, 1989): 85# PARAGUAY 4 H BEHIND UTC 86# PARAGUAY 3 H BEHIND UTC OCT 1, '88-MAR 31, '89 87 88# From Arthur David Olson (January 21, 1989): 89# Still don't know time of day when switch occurs. Punt. 90 91############################################################################### 92 93# Argentina 94 95# From Bob Devine (January 28, 1988): 96# Argentina: first Sunday in October to first Sunday in April since 1976. 97# Double Summer time from 1969 to 1974. Switches at midnight. 98 99# From U. S. Naval Observatory (January 19, 19889): 100# ARGENTINA 3 H BEHIND UTC 101 102# From Arthur David Olson (January 21, 1989): 103# OAG, USNO and Bob have different data. Punt. 104