projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 1a1bd25f KB |
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 | |
| 47 | Rule Brazil 1987 max - Feb Sat<=14 2:00 0 S | |
| 48 | Rule Brazil 1987 max - Oct Sat<=28 2:00 1:00 D | |
| 49 | ||
| 50 | # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] | |
| 51 | Zone Brazil/East -3:00 Brazil E%sT | |
| 52 | Zone Brazil/West -4:00 Brazil W%sT | |
| 53 | Zone Brazil/Acre -5:00 Brazil A%sT | |
| 54 | Zone 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 | |
| 69 | Rule Chile 1977 max - Oct Sun>=8 0:00 1:00 D | |
| 70 | Rule Chile 1978 max - Mar Sun>=8 0:00 0 S | |
| 71 | ||
| 72 | # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] | |
| 73 | Zone Chile/Continental -4:00 Chile C%sT | |
| 74 | Zone 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. |