# %W%

# 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
# 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 (February 10, 1988):

# 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
# 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 (February 10, 1988):

###############################################################################

# 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 (February 10, 1988):
#	ARGENTINA           3 H BEHIND   UTC
# (No mention of DST).