# @(#)systemv	7.3

# Old rules, should the need arise.
# No attempt is made to handle Newfoundland, since it cannot be expressed
# using the System V "TZ" scheme (half-hour offset), or anything outside
# North America (no support for non-standard DST start/end dates), nor
# the change in the DST rules in the US in 1987 (which occurred before
# the old rules were written).
#
# If you need the old rules, uncomment ## lines and comment-out Link lines.
# Compile this *without* leap second correction for true conformance.

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
## Rule	SystemV	min	1973	-	Apr	lastSun	2:00	1:00	D
## Rule	SystemV	min	1973	-	Oct	lastSun	2:00	0	S
## Rule	SystemV	1974	only	-	Jan	6	2:00	1:00	D
## Rule	SystemV	1974	only	-	Nov	lastSun	2:00	0	S
## Rule	SystemV	1975	only	-	Feb	23	2:00	1:00	D
## Rule	SystemV	1975	only	-	Oct	lastSun	2:00	0	S
## Rule	SystemV	1976	max	-	Apr	lastSun	2:00	1:00	D
## Rule	SystemV	1976	max	-	Oct	lastSun	2:00	0	S

# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
## Zone	SystemV/AST4ADT	-4:00	SystemV		A%sT
## Zone	SystemV/EST5EDT	-5:00	SystemV		E%sT
## Zone	SystemV/CST6CDT	-6:00	SystemV		C%sT
## Zone	SystemV/MST7MDT	-7:00	SystemV		M%sT
## Zone	SystemV/PST8PDT	-8:00	SystemV		P%sT
## Zone	SystemV/YST9YDT	-9:00	SystemV		Y%sT
## Zone	SystemV/AST4	-4:00	-		AST
## Zone	SystemV/EST5	-5:00	-		EST
## Zone	SystemV/CST6	-6:00	-		CST
## Zone	SystemV/MST7	-7:00	-		MST
## Zone	SystemV/PST8	-8:00	-		PST
## Zone	SystemV/YST9	-9:00	-		YST
## Zone	SystemV/HST10	-10:00	-		HST
# For now...
Link	America/Halifax		SystemV/AST4ADT
Link	America/New_York	SystemV/EST5EDT
Link	America/Chicago		SystemV/CST6CDT
Link	America/Denver		SystemV/MST7MDT
Link	America/Los_Angeles	SystemV/PST8PDT
Link	America/Anchorage	SystemV/YST9YDT
Link	America/Puerto_Rico	SystemV/AST4
Link	America/Indianapolis	SystemV/EST5
Link	America/Regina		SystemV/CST6
Link	America/Phoenix		SystemV/MST7
Link	Pacific/Pitcairn	SystemV/PST8
Link	Pacific/Gambier		SystemV/YST9
Link	Pacific/Honolulu	SystemV/HST10
