southamerica revision 14343
114343Swollman# @(#)southamerica	7.11
22742Swollman
32742Swollman# This data is by no means authoritative; if you think you know better,
42742Swollman# go ahead and edit the file (and please send any changes to
52742Swollman# tz@elsie.nci.nih.gov for general use in the future).
62742Swollman
72742Swollman# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
82742Swollman# A good source for time zone historical data outside the U.S. is
92742Swollman# Thomas G. Shanks, The International Atlas (3rd edition),
102742Swollman# San Diego: ACS Publications, Inc. (1991).
112742Swollman# Except where otherwise noted, it is the source for the data below.
122742Swollman#
132742Swollman# I invented the abbreviations marked `*' in the following table;
142742Swollman# the rest are from earlier versions of this file, or from other sources.
152742Swollman# Some of these are just plausible excuses for common English abbreviations.
162742Swollman# Corrections are welcome!
179908Swollman#		std	dst
189908Swollman#		LMT		Local Mean Time
199908Swollman#	-2:00	FST	FDT	Fernando de Noronha
209908Swollman#	-3:00	EST	EDT	Eastern South America (conflicts with -5:00)
219908Swollman#	-3:00	ARST	ARDT	Argentina
229908Swollman#	-4:00	AST	ADT	Andes*, Antilles*, Asuncion*, Atlantic
239908Swollman#	-4:00	CST	CDT	Chile (conflicts with -6:00)
249908Swollman#	-4:00	WST	WDT	Western Brazil
259908Swollman#	-5:00	AST	ADT	Acre (conflicts with -4:00)
269908Swollman#	-5:00	EST	EDT	Eastern, Ecuador*
279908Swollman#	-6:00	CST	CDT	Archipelago of Columbus*, Central
289908Swollman#	-7:00	MST	MDT	Mataveri*, Mountain
292742Swollman#
302742Swollman# See the `africa' file for Zone naming conventions.
312742Swollman
322742Swollman# From Guy Harris:
332742Swollman# From Official Airline Guide - Worldwide Edition (1987).  Countries not
342742Swollman# listed here do not observe DST, according to the OAG.  Time zone names
352742Swollman# are pure inventions, and none are supplied for countries not observing
362742Swollman# DST; updates from natives would be appreciated.  The times that DST
372742Swollman# starts and ends are based on the assumption that they switch a 2AM just
382742Swollman# as everybody else does.
392742Swollman
402742Swollman###############################################################################
412742Swollman
422742Swollman###############################################################################
432742Swollman
442742Swollman# Argentina
452742Swollman
462742Swollman# From Bob Devine (January 28, 1988):
472742Swollman# Argentina: first Sunday in October to first Sunday in April since 1976.
482742Swollman# Double Summer time from 1969 to 1974.  Switches at midnight.
492742Swollman
502742Swollman# From U. S. Naval Observatory (January 19, 19889):
512742Swollman# ARGENTINA           3 H BEHIND   UTC
522742Swollman
539908Swollman# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
549908Swollman# I am sending modifications to the Argentinian time zone table...
559908Swollman# AR was chosen because they are the ISO letters that represent Argentina.
569908Swollman
572742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
582742SwollmanRule	Arg	1930	only	-	Dec	 1	0:00	1:00	D
592742SwollmanRule	Arg	1931	only	-	Apr	 1	0:00	0	S
602742SwollmanRule	Arg	1931	only	-	Oct	15	0:00	1:00	D
612742SwollmanRule	Arg	1932	1940	-	Mar	 1	0:00	0	S
622742SwollmanRule	Arg	1932	1939	-	Nov	 1	0:00	1:00	D
632742SwollmanRule	Arg	1940	only	-	Jul	 1	0:00	1:00	D
642742SwollmanRule	Arg	1941	only	-	Jun	15	0:00	0	S
652742SwollmanRule	Arg	1941	only	-	Oct	15	0:00	1:00	D
662742SwollmanRule	Arg	1943	only	-	Aug	 1	0:00	0	S
672742SwollmanRule	Arg	1943	only	-	Oct	15	0:00	1:00	D
682742SwollmanRule	Arg	1946	only	-	Mar	 1	0:00	0	S
692742SwollmanRule	Arg	1946	only	-	Oct	 1	0:00	1:00	D
702742SwollmanRule	Arg	1963	only	-	Oct	 1	0:00	0	S
712742SwollmanRule	Arg	1963	only	-	Dec	15	0:00	1:00	D
722742SwollmanRule	Arg	1964	1966	-	Mar	 1	0:00	0	S
732742SwollmanRule	Arg	1964	1966	-	Oct	15	0:00	1:00	D
742742SwollmanRule	Arg	1967	only	-	Apr	 1	0:00	0	S
752742SwollmanRule	Arg	1967	1968	-	Oct	Sun<=7	0:00	1:00	D
762742SwollmanRule	Arg	1968	1969	-	Apr	Sun<=7	0:00	0	S
772742SwollmanRule	Arg	1974	only	-	Jan	23	0:00	1:00	D
782742SwollmanRule	Arg	1974	only	-	May	 1	0:00	0	S
792742SwollmanRule	Arg	1974	1976	-	Oct	Sun<=7	0:00	1:00	D
802742SwollmanRule	Arg	1975	1977	-	Apr	Sun<=7	0:00	0	S
812742SwollmanRule	Arg	1985	only	-	Nov	 2	0:00	1:00	D
822742SwollmanRule	Arg	1986	only	-	Mar	14	0:00	0	S
832742SwollmanRule	Arg	1986	1987	-	Oct	25	0:00	1:00	D
842742SwollmanRule	Arg	1987	only	-	Feb	13	0:00	0	S
852742SwollmanRule	Arg	1988	only	-	Feb	 7	0:00	0	S
862742SwollmanRule	Arg	1988	only	-	Dec	 1	0:00	1:00	D
879908Swollman#
889908Swollman# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
899908Swollman# These corrections were contributed by InterSoft Argentina S.A.,
909908Swollman# obtaining the data from the:
919908Swollman# Talleres de Hidrografia Naval Argentina
929908Swollman# (Argentinian Naval Hydrography Institute)
939908Swollman#
949908Swollman# Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero.
959908SwollmanRule	Arg	1989	1993	-	Mar	Sun>=1	0:00	0	S
969908SwollmanRule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	D
979908Swollman#
989908Swollman# From Hernan G. Otero <hernan@isoft.com.ar> (June 26, 1995):
999908Swollman# From this moment on, the law that mandated the daylight saving
1009908Swollman# time corrections was derogated and no more modifications
1019908Swollman# to the time zones (for daylight saving) are now made.
1029908Swollman#
1032742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1042742SwollmanZone America/Buenos_Aires -3:53:48 -	LMT	1894 Nov
1052742Swollman			-4:17	-	CMT	1920 May    # Cordoba Mean Time
1062742Swollman			-4:00	-	AST	1930 Dec
1072742Swollman			-4:00	Arg	A%sT	1969 Oct 5
1089908Swollman			-3:00	Arg	AR%sT
1098029Swollman# ZONE-DESCR America Buenos_Aires Argentina All points
1108029Swollman
11114343Swollman# Aruba
11214343Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
11314343SwollmanZone	America/Aruba	-4:40:24 -	LMT	1912 Feb 12	# Oranjestad
11414343Swollman			-4:30	-	NAST	1965	# Netherlands Antilles
11514343Swollman			-4:00	-	AST
11614343Swollman
11714343Swollman# ZONE-DESCR America Aruba All points
11814343Swollman# what to do about overseas terrirories...?
11914343Swollman
1202742Swollman# Bolivia
1212742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1222742SwollmanZone	America/La_Paz	-4:32:36 -	LMT	1890
1232742Swollman			-4:33	-	LPMT	1931 Oct 15 # La Paz Mean Time
1242742Swollman			-4:33	1:00	LPDT	1932 Mar 21
1252742Swollman			-4:00	-	AST
1262742Swollman
1278029Swollman# ZONE-DESCR America La_Paz Bolivia All points
1288029Swollman
1292742Swollman# Brazil
1302742Swollman
1312742Swollman# From Guy Harris:
1322742Swollman# The OAG lists October 25, 1987 and February 12, 1988 as the starting and
1332742Swollman# ending dates, giving them as "estimated date(s) based on previous year".  We
1342742Swollman# infer a rule here from one example, always a dangerous practice....  Yes,
1352742Swollman# they really do switch on Saturday, according to the OAG.
13614343Swollman# "[America/Porto_Acre]" is for the Territory of Acre;
13714343Swollman# "[America/Noronha]" is for Fernando De Noronha.
1382742Swollman
1392742Swollman# From Bob Devine (January 28, 1988):
1402742Swollman# The only information I found is that there was no DST up to 1985.
1412742Swollman# But there was some before 1952!
1422742Swollman
1432742Swollman# From U. S. Naval Observatory (January 16, 1989):
1442742Swollman# BRAZIL     WEST     5 H  BEHIND UTC    TERRITORY OF ACRE
1452742Swollman# BRAZIL     WEST     4 H  BEHIND UTC    ACRE OCT 23, '88-FEB 11,
1462742Swollman# BRAZIL                                 '89 (ESTIMATED)
1472742Swollman# BRAZIL     CENTRAL  4 H  BEHIND UTC    MANAUS
1482742Swollman# BRAZIL     CENTRAL  3 H  BEHIND UTC    MANAUS OCT 23, '88-FEB 11,
1492742Swollman# BRAZIL     CENTRAL                     '89 (ESTIMATED)
1502742Swollman# BRAZIL     EAST     3 H  BEHIND UTC    COASTAL STATES, RIO, SAO
1512742Swollman# BRAZIL     EAST                        PAULO, BRASILIA
1522742Swollman# BRAZIL     EAST     2 H  BEHIND UTC    COASTAL STATES, RIO, SAO
1532742Swollman# BRAZIL                                 PAULO, BRASILIA OCT 23,
1542742Swollman# BRAZIL                                 '88-FEB 11, '89
1552742Swollman# BRAZIL                                 (ESTIMATED)
1562742Swollman# BRAZIL              2 H  BEHIND UTC    ATLANTIC ISLANDS, FERNANDO
1572742Swollman# BRAZIL                                 DE NORONHA
1582742Swollman# BRAZIL              1 H  BEHIND UTC    OCT 23, '88-FEB 11, '89
1592742Swollman# BRAZIL                                 (ESTIMATED)
1602742Swollman# BRAZIL              3 H  BEHIND UTC    FOR MOST MAJOR AIRPORTS.
1612742Swollman
1622742Swollman# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
1632742Swollman# The mayor of Rio recently attempted to change the time zone rules
1642742Swollman# just in his city, in order to leave more summer time for the tourist trade.
1652742Swollman# The rule change lasted only part of the day;
1662742Swollman# the federal government refused to follow the city's rules, and business
1672742Swollman# was in a chaos, so the mayor backed down that afternoon.
1682742Swollman# Shanks claims Acre stopped observing DST after 1988 Feb 7, but it
1692742Swollman# could just be that his table ran out of room.  We're extrapolating
1702742Swollman# about time zone changes after 1990 Feb 11.
1712742Swollman
1722742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1732742SwollmanRule	Brazil	1914	only	-	Jan	 1	 0:00	0	S
1742742SwollmanRule	Brazil	1931	only	-	Oct	 3	11:00	1	D
1752742SwollmanRule	Brazil	1932	1933	-	Apr	 1	 0:00	0	S
1762742SwollmanRule	Brazil	1932	only	-	Oct	 3	 0:00	1	D
1772742SwollmanRule	Brazil	1949	1952	-	Dec	 1	 0:00	1	D
1782742SwollmanRule	Brazil	1950	only	-	Apr	16	 0:00	0	S
1792742SwollmanRule	Brazil	1951	1953	-	Apr	 1	 0:00	0	S
1802742SwollmanRule	Brazil	1963	only	-	Dec	 9	 0:00	1	D
1812742SwollmanRule	Brazil	1964	only	-	Mar	 1	 0:00	0	S
1822742SwollmanRule	Brazil	1965	only	-	Jan	31	 0:00	1	D
1832742SwollmanRule	Brazil	1965	only	-	Apr	 1	 0:00	0	S
1842742SwollmanRule	Brazil	1965	only	-	Dec	 1	 0:00	1	D
1852742SwollmanRule	Brazil	1966	1968	-	Mar	 1	 0:00	0	S
1862742SwollmanRule	Brazil	1966	1967	-	Nov	 1	 0:00	1	D
1872742SwollmanRule	Brazil	1985	only	-	Nov	 2	 0:00	1	D
1882742SwollmanRule	Brazil	1986	only	-	Mar	15	 0:00	0	S
1892742SwollmanRule	Brazil	1986	1987	-	Oct	Sat<=28	 0:00	1	D
1902742SwollmanRule	Brazil	1987	only	-	Feb	14	 0:00	0	S
1912742SwollmanRule	Brazil	1988	only	-	Feb	 7	 0:00	0	S
1922742SwollmanRule	Brazil	1989	only	-	Jan	22	 0:00	0	S
1932742SwollmanRule	Brazil	1988	max	-	Oct	Sun>=15	 0:00	1	D
1942742SwollmanRule	Brazil	1990	max	-	Feb	Sun>=8	 0:00	0	S
1952742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1962742SwollmanZone America/Noronha	-2:09:40 -	LMT	1914
1972742Swollman			-2:00	-	FST	1963 Dec 9
1982742Swollman			-2:00	Brazil	F%sT
1992742SwollmanZone America/Sao_Paulo	-3:06:28 -	LMT	1914
2002742Swollman			-3:00	Brazil	E%sT
2012742SwollmanZone America/Manaus	-4:00:04 -	LMT	1914
2022742Swollman			-4:00	-	WST	1963 Dec 9
2032742Swollman			-4:00	Brazil	W%sT
2042742Swollman# Rio_Branco is too ambiguous, since there's a Rio Branco in Uruguay too.
2052742SwollmanZone America/Porto_Acre	-4:31:12 -	LMT	1914
2062742Swollman			-5:00	-	AST	1963 Dec 9
2072742Swollman			-5:00	Brazil	A%sT
2082742Swollman#
2092742Swollman# Martin Vaz and Trinidade are like America/Noronha.
2102742Swollman
2118029Swollman# ZONE-DESCR America Noronha Brazil Fernando De Noronha
2128029Swollman# ZONE-DESCR America Sao_Paulo Brazil Eastern zone
2138029Swollman# ZONE-DESCR America Manaus Brazil Western zone
2148029Swollman# ZONE-DESCR America Porto_Acre Brazil Territory of Acre
2152742Swollman
2162742Swollman# Chile
2172742Swollman
21814343Swollman# From Eduardo Krell (1995-10-19):
21914343Swollman# The law says to switch to DST at midnight [24:00] on the second SATURDAY
22014343Swollman# of October....  The law is the same for March and October.
2212742Swollman
2222742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
2232742SwollmanRule	Chile	1918	only	-	Sep	1	0:00	1:00	D
2242742SwollmanRule	Chile	1919	only	-	Jul	2	0:00	0	S
2252742SwollmanRule	Chile	1927	1931	-	Sep	1	0:00	1:00	D
2262742SwollmanRule	Chile	1928	1932	-	Apr	1	0:00	0	S
22714343SwollmanRule	Chile	1969	max	-	Oct	Sun>=9	0:00	1:00	D
22814343SwollmanRule	Chile	1970	max	-	Mar	Sun>=9	0:00	0	S
2292742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2302742SwollmanZone America/Santiago	-4:42:40 -	LMT	1890
2312742Swollman			-4:43	-	SMT	1910	    # Santiago Mean Time
2322742Swollman			-5:00	Chile	C%sT	1932 Sep
2332742Swollman			-4:00	Chile	C%sT
2342742SwollmanZone Pacific/Easter	-7:17:28 -	LMT	1890	    # Mataveri
2352742Swollman			-7:17	-	MMT	1932 Sep    # Mataveri Mean Time
2362742Swollman			-7:00	Chile	M%sT	1982 Mar 14
2372742Swollman			-6:00	Chile	C%sT
2382742Swollman#
2392742Swollman# Whitman says Juan Fernandez Is are like America/Santiago.
2402742Swollman# San Ambrosio, San Felix
2412742Swollman# no information; probably like America/Santiago
2422742Swollman
2438029Swollman# ZONE-DESCR America Santiago Chile All points
2448029Swollman# ZONE-DESCR Pacific Easter Easter_Island All points
2452742Swollman
2462742Swollman# Colombia
2472742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2482742SwollmanZone	America/Bogota	-4:56:20 -	LMT	1884 Mar 13
2492742Swollman			-4:56	-	BMT	1914 Nov 23 # Bogota Mean Time
2502742Swollman			-5:00	-	EST
2512742Swollman# Malpelo, Providencia, San Andres
2522742Swollman# no information; probably like America/Bogota
2532742Swollman
2548029Swollman# ZONE-DESCR America Botoga Colombia All points
2558029Swollman
2562742Swollman# Curacao
2572742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2582742SwollmanZone	America/Curacao	-4:35:44 -	LMT	1912 Feb 12	# Willemstad
2592742Swollman			-4:30	-	NAST	1965	# Netherlands Antilles
2602742Swollman			-4:00	-	AST
2612742Swollman
2628029Swollman# ZONE-DESCR America Curacao Curacao All points
2638029Swollman
2642742Swollman# Ecuador
2652742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2662742SwollmanZone America/Guayaquil	-5:19:20 -	LMT	1890
2672742Swollman			-5:14	-	QMT	1931 # Quito Mean Time
2682742Swollman			-5:00	-	EST
2692742SwollmanZone Pacific/Galapagos	-5:58:24 -	LMT	1931 # Puerto Baquerizo Moreno
2702742Swollman			-5:00	-	EST	1986
2712742Swollman			-6:00	-	CST
2722742Swollman
2738029Swollman# ZONE-DESCR America Guayaquil Ecuador All points except:
2748029Swollman# ZONE-DESCR Pacific Galapagos Ecuador Galapagos Islands
2758029Swollman
2762742Swollman# Falklands
2772742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
2782742SwollmanRule	Falk	1912	only	-	Mar	12	0:00	0	S
2792742SwollmanRule	Falk	1937	1938	-	Sep	lastSun	0:00	1:00	D
2802742SwollmanRule	Falk	1938	1942	-	Mar	Sun>=19	0:00	0	S
2812742SwollmanRule	Falk	1939	only	-	Oct	1	0:00	1:00	D
2822742SwollmanRule	Falk	1940	1942	-	Sep	lastSun	0:00	1:00	D
2832742SwollmanRule	Falk	1943	only	-	Jan	1	0:00	0	S
2842742SwollmanRule	Falk	1983	only	-	Sep	lastSun	0:00	1:00	D
2852742SwollmanRule	Falk	1984	1985	-	Apr	lastSun	0:00	0	S
2862742SwollmanRule	Falk	1984	only	-	Sep	16	0:00	1:00	D
2872742SwollmanRule	Falk	1985	max	-	Sep	Sun>=9	0:00	1:00	D
2882742SwollmanRule	Falk	1986	max	-	Apr	Sun>=16	0:00	0	S
2892742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2902742SwollmanZone Atlantic/Stanley	-3:51:24 -	LMT	1890
2912742Swollman			-3:51	-	SMT	1912 Mar 12  # Stanley Mean Time
2922742Swollman			-4:00	Falk	A%sT	1983 May
2932742Swollman			-3:00	Falk	E%sT	1985 Sep 15
2942742Swollman			-4:00	Falk	A%sT
2952742Swollman
2968029Swollman# ZONE-DESCR Atlantic Stanley Falkland_Islands All points
2978029Swollman
2982742Swollman# French Guiana
2992742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3002742SwollmanZone America/Cayenne	-3:29:20 -	LMT	1911 Jul
3012742Swollman			-4:00	-	AST	1967 Oct
3022742Swollman			-3:00	-	EST
3032742Swollman
3048029Swollman# ZONE-DESCR America Cayenne French_Guiana All points
3058029Swollman
3062742Swollman# Guyana
3072742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3082742SwollmanZone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown
3092742Swollman			-3:45	-	BGST	1975 Jul 31  # British Guiana ST
3102742Swollman			-3:00	-	EST
3112742Swollman
3128029Swollman# ZONE-DESCR America Guyana Guyana All points
3132742Swollman
3142742Swollman# Paraguay
3152742Swollman
3162742Swollman# From Bob Devine (January 28, 1988):
3172742Swollman# Paraguay: First day in October to last in March.  Midnight switch??
3182742Swollman# Since 1980.
3192742Swollman
3202742Swollman# From U. S. Naval Observatory (January 19, 1989):
3212742Swollman# PARAGUAY            4 H  BEHIND UTC
3222742Swollman# PARAGUAY            3 H  BEHIND UTC    OCT 1, '88-MAR 31, '89
3232742Swollman
3242742Swollman# From Shanks (1991):
3252742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
3262742SwollmanRule	Para	1974	only	-	Apr	 1	0:00	0	S
3272742SwollmanRule	Para	1975	1978	-	Oct	 1	0:00	1:00	D
3282742SwollmanRule	Para	1975	1978	-	Mar	 1	0:00	0	S
3292742Swollman# Shanks says 1979 was all DST.
3302742SwollmanRule	Para	1980	max	-	Apr	 1	0:00	0	S
3312742SwollmanRule	Para	1980	1988	-	Oct	 1	0:00	1:00	D
3322742SwollmanRule	Para	1989	only	-	Oct	22	0:00	1:00	D
3332742SwollmanRule	Para	1990	max	-	Oct	 1	0:00	1:00	D
3342742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3352742SwollmanZone America/Asuncion	-3:50:40 -	LMT	1890
3362742Swollman			-3:51	-	AMT	1931 Oct 10 # Asuncion Mean Time
3372742Swollman			-4:00	-	AST	1972 Oct
3382742Swollman			-3:00	-	EST	1974 Apr
3392742Swollman			-4:00	Para	A%sT
3402742Swollman
3418029Swollman# ZONE-DESCR America Asuncion Paraguay All points
3428029Swollman
3432742Swollman# Peru
3442742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
3452742SwollmanRule	Peru	1908	only	-	Jul	28	0:00	0	S
3462742SwollmanRule	Peru	1938	only	-	Jan	 1	0:00	1:00	D
3472742SwollmanRule	Peru	1938	only	-	Apr	 1	0:00	0	S
3482742SwollmanRule	Peru	1938	1939	-	Sep	lastSun	0:00	1:00	D
3492742SwollmanRule	Peru	1939	1940	-	Mar	Sun>=24	0:00	0	S
3502742SwollmanRule	Peru	1987	only	-	Jan	 1	0:00	1:00	D
3512742SwollmanRule	Peru	1987	only	-	Apr	 1	0:00	0	S
3522742SwollmanRule	Peru	1990	only	-	Jan	 1	0:00	1:00	D
3532742SwollmanRule	Peru	1990	only	-	Apr	 1	0:00	0	S
3542742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3552742SwollmanZone	America/Lima	-5:08:12 -	LMT	1890
3562742Swollman			-5:09	-	LMT	1908 Jul 28
3572742Swollman			-5:00	Peru	E%sT
3582742Swollman
3598029Swollman# ZONE-DESCR America Lima Peru All points
3608029Swollman
3612742Swollman# South Georgia
3622742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3632742SwollmanZone Atlantic/South_Georgia -2:26:08 -	LMT	1890		# Grytviken
3642742Swollman			-2:00	-	FST
3652742Swollman
3668029Swollman# ZONE-DESCR Atlantic South_Georgia South_Georgia All points
3678029Swollman
3682742Swollman# South Sandwich Is
36914343Swollman# uninhabited
3702742Swollman
3712742Swollman# Suriname
3722742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3732742SwollmanZone America/Paramaribo	-3:40:40 -	LMT	1911
3742742Swollman			-3:40:52 -	PMT	1935     # Paramaribo Mean Time
3752742Swollman			-3:40:36 -	PMT	1945 Oct # The capital moved?
3762742Swollman			-3:30	-	DGST	1984 Oct # Dutch Guiana Std Time
3772742Swollman			-3:00	-	EST
3782742Swollman
3798029Swollman# ZONE-DESCR America Paramaibo Suriname All points
3808029Swollman
3812742Swollman# Trinidad and Tobago
3822742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3832742SwollmanZone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2
3842742Swollman			-4:00	-	AST
3852742Swollman
3868029Swollman# ZONE-DESCR America Port_of_Spain Trinidad_and_Tobago All points
3878029Swollman
3882742Swollman# Uruguay
3892742Swollman# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
3902742Swollman# Uruguay wins the prize for the strangest peacetime manipulation of the rules.
3912742Swollman# From Shanks (1991):
3922742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
3932742SwollmanRule	Uruguay	1920	only	-	May	 1	 0:00	0	S
3942742Swollman# Whitman gives 1923 Oct 1; go with Shanks.
3952742SwollmanRule	Uruguay	1923	only	-	Oct	 2	 0:00	0:30	HD
3962742SwollmanRule	Uruguay	1924	1926	-	Apr	 1	 0:00	0	S
3972742SwollmanRule	Uruguay	1924	1925	-	Oct	 1	 0:00	0:30	HD
3982742SwollmanRule	Uruguay	1933	1935	-	Oct	lastSun	 0:00	0:30	HD
3992742Swollman# Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman.
4002742SwollmanRule	Uruguay	1934	1936	-	Mar	Sat>=25	23:30s	0	S
4012742SwollmanRule	Uruguay	1936	only	-	Nov	 1	 0:00	0:30	HD
4022742SwollmanRule	Uruguay	1937	1941	-	Mar	lastSun	 0:00	0	S
4032742Swollman# Whitman gives 1937 Oct 3; go with Shanks.
4042742SwollmanRule	Uruguay	1937	1940	-	Oct	lastSun	 0:00	0:30	HD
4052742Swollman# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
4062742Swollman# and 1943 Apr 13 ``to present time''; go with Shanks.
4072742SwollmanRule	Uruguay	1941	only	-	Aug	 1	 0:00	0	S
4082742SwollmanRule	Uruguay	1942	only	-	Jan	 1	 0:00	0:30	HD
4092742SwollmanRule	Uruguay	1942	only	-	Dec	14	 0:00	1:00	D
4102742SwollmanRule	Uruguay	1943	only	-	Mar	14	 0:00	0	S
4112742SwollmanRule	Uruguay	1959	only	-	May	24	 0:00	1:00	D
4122742SwollmanRule	Uruguay	1959	only	-	Nov	15	 0:00	0	S
4132742SwollmanRule	Uruguay	1960	only	-	Jan	17	 0:00	1:00	D
4142742SwollmanRule	Uruguay	1960	only	-	Mar	 6	 0:00	0	S
4152742SwollmanRule	Uruguay	1965	1967	-	Apr	Sun>=1	 0:00	1:00	D
4162742SwollmanRule	Uruguay	1965	only	-	Sep	26	 0:00	0	S
4172742SwollmanRule	Uruguay	1966	1967	-	Oct	31	 0:00	0	S
4182742SwollmanRule	Uruguay	1968	1970	-	May	27	 0:00	0:30	HD
4192742SwollmanRule	Uruguay	1968	1970	-	Dec	 2	 0:00	0	S
4202742SwollmanRule	Uruguay	1972	only	-	Apr	24	 0:00	1:00	D
4212742SwollmanRule	Uruguay	1972	only	-	Aug	15	 0:00	0	S
4222742SwollmanRule	Uruguay	1974	only	-	Mar	10	 0:00	0:30	HD
4232742SwollmanRule	Uruguay	1974	only	-	Dec	22	 0:00	1:00	D
4242742SwollmanRule	Uruguay	1976	only	-	Oct	 1	 0:00	0	S
4252742SwollmanRule	Uruguay	1977	only	-	Dec	 4	 0:00	1:00	D
4262742SwollmanRule	Uruguay	1978	only	-	Apr	 1	 0:00	0	S
4272742SwollmanRule	Uruguay	1979	only	-	Oct	 1	 0:00	1:00	D
4282742SwollmanRule	Uruguay	1980	only	-	May	 1	 0:00	0	S
4292742SwollmanRule	Uruguay	1987	only	-	Dec	14	 0:00	1:00	D
4302742SwollmanRule	Uruguay	1988	only	-	Mar	14	 0:00	0	S
4312742SwollmanRule	Uruguay	1988	only	-	Dec	11	 0:00	1:00	D
4322742SwollmanRule	Uruguay	1989	only	-	Mar	12	 0:00	0	S
4332742SwollmanRule	Uruguay	1989	only	-	Oct	29	 0:00	1:00	D
4342742SwollmanRule	Uruguay	1990	only	-	Mar	 4	 0:00	0	S
4352742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
4362742SwollmanZone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28
4372742Swollman			-3:45	-	MMT	1920 May  1	# Montevideo MT
4382742Swollman			-3:30	Uruguay	U%sT	1942 Dec 14	# Uruguay ST
4392742Swollman			-3:00	Uruguay	E%sT
4402742Swollman
4418029Swollman# ZONE-DESCR America Montevideo Uruguay All points
4428029Swollman
4432742Swollman# Venezuela
4442742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
4452742SwollmanZone	America/Caracas	-4:27:44 -	LMT	1890
4462742Swollman			-4:28	-	CMT	1912 Feb 12  # Caracas Mean Time
4472742Swollman			-4:30	-	VZT	1965		# Venezuela Time
4482742Swollman			-4:00	-	AST
4498029Swollman
4508029Swollman# ZONE-DESCR America Caracas Venezuela All points
451