systemv revision 240457
1# <pre> 2# This file is in the public domain, so clarified as of 3# 2009-05-17 by Arthur David Olson. 4 5# Old rules, should the need arise. 6# No attempt is made to handle Newfoundland, since it cannot be expressed 7# using the System V "TZ" scheme (half-hour offset), or anything outside 8# North America (no support for non-standard DST start/end dates), nor 9# the changes in the DST rules in the US after 1976 (which occurred after 10# the old rules were written). 11# 12# If you need the old rules, uncomment ## lines. 13# Compile this *without* leap second correction for true conformance. 14 15# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 16Rule SystemV min 1973 - Apr lastSun 2:00 1:00 D 17Rule SystemV min 1973 - Oct lastSun 2:00 0 S 18Rule SystemV 1974 only - Jan 6 2:00 1:00 D 19Rule SystemV 1974 only - Nov lastSun 2:00 0 S 20Rule SystemV 1975 only - Feb 23 2:00 1:00 D 21Rule SystemV 1975 only - Oct lastSun 2:00 0 S 22Rule SystemV 1976 max - Apr lastSun 2:00 1:00 D 23Rule SystemV 1976 max - Oct lastSun 2:00 0 S 24 25# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] 26## Zone SystemV/AST4ADT -4:00 SystemV A%sT 27## Zone SystemV/EST5EDT -5:00 SystemV E%sT 28## Zone SystemV/CST6CDT -6:00 SystemV C%sT 29## Zone SystemV/MST7MDT -7:00 SystemV M%sT 30## Zone SystemV/PST8PDT -8:00 SystemV P%sT 31## Zone SystemV/YST9YDT -9:00 SystemV Y%sT 32## Zone SystemV/AST4 -4:00 - AST 33## Zone SystemV/EST5 -5:00 - EST 34## Zone SystemV/CST6 -6:00 - CST 35## Zone SystemV/MST7 -7:00 - MST 36## Zone SystemV/PST8 -8:00 - PST 37## Zone SystemV/YST9 -9:00 - YST 38## Zone SystemV/HST10 -10:00 - HST 39