diff --git a/contrib/tzdata/antarctica b/contrib/tzdata/antarctica
index 629b2d7b8159..d19fbde0fcf4 100644
--- a/contrib/tzdata/antarctica
+++ b/contrib/tzdata/antarctica
@@ -1,5 +1,5 @@
 # <pre>
-# @(#)antarctica	8.8
+# @(#)antarctica	8.9
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -19,18 +19,6 @@
 # I made up all time zone abbreviations mentioned here; corrections welcome!
 # FORMAT is `zzz' and GMTOFF is 0 for locations while uninhabited.
 
-# These rules are stolen from the `europe' file.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	RussAQ	1981	1984	-	Apr	 1	 0:00	1:00	S
-Rule	RussAQ	1981	1983	-	Oct	 1	 0:00	0	-
-Rule	RussAQ	1984	1991	-	Sep	lastSun	 2:00s	0	-
-Rule	RussAQ	1985	1991	-	Mar	lastSun	 2:00s	1:00	S
-Rule	RussAQ	1992	only	-	Mar	lastSat	 23:00	1:00	S
-Rule	RussAQ	1992	only	-	Sep	lastSat	 23:00	0	-
-Rule	RussAQ	1993	max	-	Mar	lastSun	 2:00s	1:00	S
-Rule	RussAQ	1993	1995	-	Sep	lastSun	 2:00s	0	-
-Rule	RussAQ	1996	max	-	Oct	lastSun	 2:00s	0	-
-
 # These rules are stolen from the `southamerica' file.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	ArgAQ	1964	1966	-	Mar	 1	0:00	0	-
diff --git a/contrib/tzdata/asia b/contrib/tzdata/asia
index d415ba801c6b..1fc61f0b4910 100644
--- a/contrib/tzdata/asia
+++ b/contrib/tzdata/asia
@@ -1,4 +1,4 @@
-# @(#)asia	8.64
+# @(#)asia	8.65
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -77,6 +77,10 @@ Rule RussiaAsia	1993	max	-	Mar	lastSun	 2:00s	1:00	S
 Rule RussiaAsia	1993	1995	-	Sep	lastSun	 2:00s	0	-
 Rule RussiaAsia	1996	max	-	Oct	lastSun	 2:00s	0	-
 
+# From Arthur David Olson (2011-06-15):
+# While Russia abandoned DST in 2011, Armenia may choose to
+# follow Russia's "old" rules.
+
 # Afghanistan
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Kabul	4:36:48 -	LMT	1890
diff --git a/contrib/tzdata/europe b/contrib/tzdata/europe
index f7fc1896f5b8..aab6833114ee 100644
--- a/contrib/tzdata/europe
+++ b/contrib/tzdata/europe
@@ -1,5 +1,5 @@
 # <pre>
-# @(#)europe	8.32
+# @(#)europe	8.33
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -565,6 +565,26 @@ Rule	Russia	1993	max	-	Mar	lastSun	 2:00s	1:00	S
 Rule	Russia	1993	1995	-	Sep	lastSun	 2:00s	0	-
 Rule	Russia	1996	max	-	Oct	lastSun	 2:00s	0	-
 
+# From Alexander Krivenyshev (2011-06-14):
+# According to Kremlin press service, Russian President Dmitry Medvedev
+# signed a federal law "On calculation of time" on June 9, 2011.
+# According to the law Russia is abolishing daylight saving time.
+# 
+# Medvedev signed a law "On the Calculation of Time" (in russian): 
+# <a href="http://bmockbe.ru/events/?ID=7583">
+# http://bmockbe.ru/events/?ID=7583
+# </a>
+# 
+# Medvedev signed a law on the calculation of the time (in russian):
+# <a href="http://www.regnum.ru/news/polit/1413906.html">
+# http://www.regnum.ru/news/polit/1413906.html
+# </a>
+
+# From Arthur David Olson (2011-06-15):
+# Take "abolishing daylight saving time" to mean that time is now considered
+# to be standard.
+# At least for now, keep the "old" Russia rules for the benefit of Belarus.
+
 # These are for backward compatibility with older versions.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -2013,7 +2033,8 @@ Zone Europe/Kaliningrad	 1:22:00 -	LMT	1893 Apr
 			 1:00	C-Eur	CE%sT	1945
 			 2:00	Poland	CE%sT	1946
 			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
-			 2:00	Russia	EE%sT
+			 2:00	Russia	EE%sT	2011 Mar 27 2:00s
+			 3:00	-	EET
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
 # Respublika Adygeya, Arkhangel'skaya oblast',
@@ -2042,7 +2063,8 @@ Zone Europe/Moscow	 2:30:20 -	LMT	1880
 			 2:00	-	EET	1930 Jun 21
 			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			 2:00	Russia	EE%sT	1992 Jan 19 2:00s
-			 3:00	Russia	MSK/MSD
+			 3:00	Russia	MSK/MSD	2011 Mar 27 2:00s
+			 4:00	-	MSK
 #
 # Astrakhanskaya oblast', Kirovskaya oblast', Saratovskaya oblast',
 # Volgogradskaya oblast'.  Shanks & Pottenger say Kirov is still at +0400
@@ -2055,7 +2077,8 @@ Zone Europe/Volgograd	 2:57:40 -	LMT	1920 Jan  3
 			 4:00	Russia	VOL%sT	1989 Mar 26 2:00s # Volgograd T
 			 3:00	Russia	VOL%sT	1991 Mar 31 2:00s
 			 4:00	-	VOLT	1992 Mar 29 2:00s
-			 3:00	Russia	VOL%sT
+			 3:00	Russia	VOL%sT	2011 Mar 27 2:00s
+			 4:00	-	VOLT
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
 # Samarskaya oblast', Udmyrtskaya respublika
@@ -2067,7 +2090,8 @@ Zone Europe/Samara	 3:20:36 -	LMT	1919 Jul  1 2:00
 			 2:00	Russia	KUY%sT	1991 Sep 29 2:00s
 			 3:00	-	KUYT	1991 Oct 20 3:00
 			 4:00	Russia	SAM%sT	2010 Mar 28 2:00s # Samara Time
-			 3:00	Russia	SAM%sT
+			 3:00	Russia	SAM%sT	2011 Mar 27 2:00s
+			 4:00	-	SAMT
 
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
@@ -2080,7 +2104,8 @@ Zone Asia/Yekaterinburg	 4:02:24 -	LMT	1919 Jul 15 4:00
 			 4:00	-	SVET	1930 Jun 21 # Sverdlovsk Time
 			 5:00	Russia	SVE%sT	1991 Mar 31 2:00s
 			 4:00	Russia	SVE%sT	1992 Jan 19 2:00s
-			 5:00	Russia	YEK%sT	# Yekaterinburg Time
+			 5:00	Russia	YEK%sT	2011 Mar 27 2:00s
+			 6:00	-	YEKT	# Yekaterinburg Time
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
 # Respublika Altaj, Altajskij kraj, Omskaya oblast'.
@@ -2088,7 +2113,8 @@ Zone Asia/Omsk		 4:53:36 -	LMT	1919 Nov 14
 			 5:00	-	OMST	1930 Jun 21 # Omsk TIme
 			 6:00	Russia	OMS%sT	1991 Mar 31 2:00s
 			 5:00	Russia	OMS%sT	1992 Jan 19 2:00s
-			 6:00	Russia	OMS%sT
+			 6:00	Russia	OMS%sT	2011 Mar 27 2:00s
+			 7:00	-	OMST
 #
 # From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's
 # not clear when it switched from +7 to +6.
@@ -2098,7 +2124,8 @@ Zone Asia/Novosibirsk	 5:31:40 -	LMT	1919 Dec 14 6:00
 			 7:00	Russia	NOV%sT	1991 Mar 31 2:00s
 			 6:00	Russia	NOV%sT	1992 Jan 19 2:00s
 			 7:00	Russia	NOV%sT	1993 May 23 # say Shanks & P.
-			 6:00	Russia	NOV%sT
+			 6:00	Russia	NOV%sT	2011 Mar 27 2:00s
+			 7:00	-	NOVT
 
 # From Alexander Krivenyshev (2009-10-13):
 # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on
@@ -2131,7 +2158,8 @@ Zone Asia/Novokuznetsk	 5:48:48 -	NMT	1920 Jan  6
 			 7:00	Russia	KRA%sT	1991 Mar 31 2:00s
 			 6:00	Russia	KRA%sT	1992 Jan 19 2:00s
 			 7:00	Russia	KRA%sT	2010 Mar 28 2:00s
-			 6:00	Russia	NOV%sT # Novosibirsk/Novokuznetsk Time
+			 6:00	Russia	NOV%sT	2011 Mar 27 2:00s
+			 7:00	-	NOVT # Novosibirsk/Novokuznetsk Time
 
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
@@ -2142,7 +2170,8 @@ Zone Asia/Krasnoyarsk	 6:11:20 -	LMT	1920 Jan  6
 			 6:00	-	KRAT	1930 Jun 21 # Krasnoyarsk Time
 			 7:00	Russia	KRA%sT	1991 Mar 31 2:00s
 			 6:00	Russia	KRA%sT	1992 Jan 19 2:00s
-			 7:00	Russia	KRA%sT
+			 7:00	Russia	KRA%sT	2011 Mar 27 2:00s
+			 8:00	-	KRAT
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
 # Respublika Buryatiya, Irkutskaya oblast',
@@ -2152,7 +2181,8 @@ Zone Asia/Irkutsk	 6:57:20 -	LMT	1880
 			 7:00	-	IRKT	1930 Jun 21 # Irkutsk Time
 			 8:00	Russia	IRK%sT	1991 Mar 31 2:00s
 			 7:00	Russia	IRK%sT	1992 Jan 19 2:00s
-			 8:00	Russia	IRK%sT
+			 8:00	Russia	IRK%sT	2011 Mar 27 2:00s
+			 9:00	-	IRKT
 #
 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
@@ -2175,7 +2205,8 @@ Zone Asia/Yakutsk	 8:38:40 -	LMT	1919 Dec 15
 			 8:00	-	YAKT	1930 Jun 21 # Yakutsk Time
 			 9:00	Russia	YAK%sT	1991 Mar 31 2:00s
 			 8:00	Russia	YAK%sT	1992 Jan 19 2:00s
-			 9:00	Russia	YAK%sT
+			 9:00	Russia	YAK%sT	2011 Mar 27 2:00s
+			 10:00	-	YAKT
 #
 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
@@ -2188,7 +2219,8 @@ Zone Asia/Vladivostok	 8:47:44 -	LMT	1922 Nov 15
 			 9:00	-	VLAT	1930 Jun 21 # Vladivostok Time
 			10:00	Russia	VLA%sT	1991 Mar 31 2:00s
 			 9:00	Russia	VLA%sST	1992 Jan 19 2:00s
-			10:00	Russia	VLA%sT
+			10:00	Russia	VLA%sT	2011 Mar 27 2:00s
+			11:00	-	VLAT
 #
 # Sakhalinskaya oblast'.
 # The Zone name should be Yuzhno-Sakhalinsk, but that's too long.
@@ -2198,7 +2230,8 @@ Zone Asia/Sakhalin	 9:30:48 -	LMT	1905 Aug 23
 			11:00	Russia	SAK%sT	1991 Mar 31 2:00s # Sakhalin T.
 			10:00	Russia	SAK%sT	1992 Jan 19 2:00s
 			11:00	Russia	SAK%sT	1997 Mar lastSun 2:00s
-			10:00	Russia	SAK%sT
+			10:00	Russia	SAK%sT	2011 Mar 27 2:00s
+			11:00	-	SAKT
 #
 # From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Magadanskaya oblast', Respublika Sakha (Yakutiya).
@@ -2211,7 +2244,8 @@ Zone Asia/Magadan	10:03:12 -	LMT	1924 May  2
 			10:00	-	MAGT	1930 Jun 21 # Magadan Time
 			11:00	Russia	MAG%sT	1991 Mar 31 2:00s
 			10:00	Russia	MAG%sT	1992 Jan 19 2:00s
-			11:00	Russia	MAG%sT
+			11:00	Russia	MAG%sT	2011 Mar 27 2:00s
+			12:00	-	MAGT
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
 # Kamchatskaya oblast', Koryakskij avtonomnyj okrug.
@@ -2222,7 +2256,8 @@ Zone Asia/Kamchatka	10:34:36 -	LMT	1922 Nov 10
 			12:00	Russia	PET%sT	1991 Mar 31 2:00s
 			11:00	Russia	PET%sT	1992 Jan 19 2:00s
 			12:00	Russia	PET%sT	2010 Mar 28 2:00s
-			11:00	Russia	PET%sT
+			11:00	Russia	PET%sT	2011 Mar 27 2:00s
+			12:00	-	PETT
 #
 # Chukotskij avtonomnyj okrug
 Zone Asia/Anadyr	11:49:56 -	LMT	1924 May  2
@@ -2231,7 +2266,8 @@ Zone Asia/Anadyr	11:49:56 -	LMT	1924 May  2
 			12:00	Russia	ANA%sT	1991 Mar 31 2:00s
 			11:00	Russia	ANA%sT	1992 Jan 19 2:00s
 			12:00	Russia	ANA%sT	2010 Mar 28 2:00s
-			11:00	Russia	ANA%sT
+			11:00	Russia	ANA%sT	2011 Mar 27 2:00s
+			12:00	-	ANAT
 
 # Serbia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/contrib/tzdata/southamerica b/contrib/tzdata/southamerica
index 919dc25beb22..90f531d712f7 100644
--- a/contrib/tzdata/southamerica
+++ b/contrib/tzdata/southamerica
@@ -1,5 +1,5 @@
 # <pre>
-# @(#)southamerica	8.49
+# @(#)southamerica	8.50
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -1276,6 +1276,14 @@ Zone	America/Curacao	-4:35:44 -	LMT	1912 Feb 12	# Willemstad
 			-4:30	-	ANT	1965 # Netherlands Antilles Time
 			-4:00	-	AST
 
+# From Arthur David Olson (2011-06-15):
+# At least for now, use links for places with new iso3166 codes.
+# The name "Lower Prince's Quarter" is both longer than fourteen charaters
+# and contains an apostrophe; use "Lower_Princes" below.
+
+Link	America/Curacao	America/Lower_Princes # Sint Maarten
+Link	America/Curacao	America/Kralendijk # Bonaire, Sint Estatius and Saba
+
 # Ecuador
 #
 # From Paul Eggert (2007-03-04):
diff --git a/contrib/tzdata/zone.tab b/contrib/tzdata/zone.tab
index f4afae67543b..251776449fd4 100644
--- a/contrib/tzdata/zone.tab
+++ b/contrib/tzdata/zone.tab
@@ -1,5 +1,5 @@
 # <pre>
-# @(#)zone.tab	8.43
+# @(#)zone.tab	8.45
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
@@ -32,7 +32,6 @@ AG	+1703-06148	America/Antigua
 AI	+1812-06304	America/Anguilla
 AL	+4120+01950	Europe/Tirane
 AM	+4011+04430	Asia/Yerevan
-AN	+1211-06900	America/Curacao
 AO	-0848+01314	Africa/Luanda
 AQ	-7750+16636	Antarctica/McMurdo	McMurdo Station, Ross Island
 AQ	-9000+00000	Antarctica/South_Pole	Amundsen-Scott Station, South Pole
@@ -87,6 +86,7 @@ BL	+1753-06251	America/St_Barthelemy
 BM	+3217-06446	Atlantic/Bermuda
 BN	+0456+11455	Asia/Brunei
 BO	-1630-06809	America/La_Paz
+BQ	+120903-0681636	America/Kralendijk
 BR	-0351-03225	America/Noronha	Atlantic islands
 BR	-0127-04829	America/Belem	Amapa, E Para
 BR	-0343-03830	America/Fortaleza	NE Brazil (MA, PI, CE, RN, PB)
@@ -155,6 +155,7 @@ CO	+0436-07405	America/Bogota
 CR	+0956-08405	America/Costa_Rica
 CU	+2308-08222	America/Havana
 CV	+1455-02331	Atlantic/Cape_Verde
+CW	+1211-06900	America/Curacao
 CX	-1025+10543	Indian/Christmas
 CY	+3510+03322	Asia/Nicosia
 CZ	+5005+01426	Europe/Prague
@@ -362,6 +363,7 @@ SO	+0204+04522	Africa/Mogadishu
 SR	+0550-05510	America/Paramaribo
 ST	+0020+00644	Africa/Sao_Tome
 SV	+1342-08912	America/El_Salvador
+SX	+180305-0630250	America/Lower_Princes
 SY	+3330+03618	Asia/Damascus
 SZ	-2618+03106	Africa/Mbabane
 TC	+2128-07108	America/Grand_Turk