python · pganssle · Mar 23, 2025 · Mar 23, 2025
diff --git a/NEWS.md b/NEWS.md
@@ -1,3 +1,25 @@
+# Version 2025.2
+Upstream version 2025b released 2025-03-22T20:40:46+00:00
+
+## Briefly:
+
+New zone for Aysén Region in Chile which moves from -04/-03 to -03.
+
+## Changes to future timestamps
+
+Chile's Aysén Region moves from -04/-03 to -03 year-round, joining Magallanes
+Region.  The region will not change its clocks on 2025-04-05 at 24:00, diverging
+from America/Santiago and creating a new zone America/Coyhaique.  (Thanks to
+Yonathan Dossow.)  Model this as a change to standard offset effective
+2025-03-20.
+
+## Changes to past timestamps
+
+Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at year end.
+(Thanks to Roozbeh Pournader.)
+
+---
+
 # Version 2025.1
 Upstream version 2025a released 2025-01-15T18:47:24+00:00
 

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-2025.1
+2025.2
diff --git a/news.d/2025b.md b/news.d/2025b.md
@@ -0,0 +1,19 @@
+# Version 2025.2
+Upstream version 2025b released 2025-03-22T20:40:46+00:00
+
+## Briefly:
+
+New zone for Aysén Region in Chile which moves from -04/-03 to -03.
+
+## Changes to future timestamps
+
+Chile's Aysén Region moves from -04/-03 to -03 year-round, joining Magallanes
+Region.  The region will not change its clocks on 2025-04-05 at 24:00, diverging
+from America/Santiago and creating a new zone America/Coyhaique.  (Thanks to
+Yonathan Dossow.)  Model this as a change to standard offset effective
+2025-03-20.
+
+## Changes to past timestamps
+
+Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at year end.
+(Thanks to Roozbeh Pournader.)
diff --git a/src/tzdata/__init__.py b/src/tzdata/__init__.py
@@ -1,6 +1,6 @@
 # IANA versions like 2020a are not valid PEP 440 identifiers; the recommended
 # way to translate the version is to use YYYY.n where `n` is a 0-based index.
-__version__ = "2025.1"
+__version__ = "2025.2"
 
 # This exposes the original IANA version number.
-IANA_VERSION = "2025a"
+IANA_VERSION = "2025b"
diff --git a/src/tzdata/zoneinfo/America/Coyhaique b/src/tzdata/zoneinfo/America/Coyhaique
diff --git a/src/tzdata/zoneinfo/Asia/Tehran b/src/tzdata/zoneinfo/Asia/Tehran
diff --git a/src/tzdata/zoneinfo/Iran b/src/tzdata/zoneinfo/Iran
diff --git a/src/tzdata/zoneinfo/tzdata.zi b/src/tzdata/zoneinfo/tzdata.zi
@@ -1,4 +1,4 @@
-# version 2025a
+# version 2025b
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
 R d 1916 1919 - O Su>=1 23s 0 -
@@ -2432,6 +2432,20 @@ Z America/Ciudad_Juarez -7:5:56 - LMT 1922 Ja 1 7u
 Z America/Costa_Rica -5:36:13 - LMT 1890
 -5:36:13 - SJMT 1921 Ja 15
 -6 CR C%sT
+Z America/Coyhaique -4:48:16 - LMT 1890
+-4:42:45 - SMT 1910 Ja 10
+-5 - %z 1916 Jul
+-4:42:45 - SMT 1918 S 10
+-4 - %z 1919 Jul
+-4:42:45 - SMT 1927 S
+-5 x %z 1932 S
+-4 - %z 1942 Jun
+-5 - %z 1942 Au
+-4 - %z 1946 Au 28 24
+-5 1 %z 1947 Mar 31 24
+-5 - %z 1947 May 21 23
+-4 x %z 2025 Mar 20
+-3 - %z
 Z America/Cuiaba -3:44:20 - LMT 1914
 -4 B %z 2003 S 24
 -4 - %z 2004 O
@@ -3420,7 +3434,7 @@ Z Asia/Tbilisi 2:59:11 - LMT 1880
 Z Asia/Tehran 3:25:44 - LMT 1916
 3:25:44 - TMT 1935 Jun 13
 3:30 i %z 1977 O 20 24
-4 i %z 1979
+4 i %z 1978 N 10 24
 3:30 i %z
 Z Asia/Thimphu 5:58:36 - LMT 1947 Au 15
 5:30 - %z 1987 O

diff --git a/src/tzdata/zoneinfo/zone.tab b/src/tzdata/zoneinfo/zone.tab
@@ -139,7 +139,8 @@ CH	+4723+00832	Europe/Zurich
 CI	+0519-00402	Africa/Abidjan
 CK	-2114-15946	Pacific/Rarotonga
 CL	-3327-07040	America/Santiago	most of Chile
-CL	-5309-07055	America/Punta_Arenas	Region of Magallanes
+CL	-4534-07204	America/Coyhaique	Aysen Region
+CL	-5309-07055	America/Punta_Arenas	Magallanes Region
 CL	-2709-10926	Pacific/Easter	Easter Island
 CM	+0403+00942	Africa/Douala
 CN	+3114+12128	Asia/Shanghai	Beijing Time

diff --git a/src/tzdata/zoneinfo/zone1970.tab b/src/tzdata/zoneinfo/zone1970.tab
@@ -124,7 +124,8 @@ CH,DE,LI	+4723+00832	Europe/Zurich	Büsingen
 CI,BF,GH,GM,GN,IS,ML,MR,SH,SL,SN,TG	+0519-00402	Africa/Abidjan
 CK	-2114-15946	Pacific/Rarotonga
 CL	-3327-07040	America/Santiago	most of Chile
-CL	-5309-07055	America/Punta_Arenas	Region of Magallanes
+CL	-4534-07204	America/Coyhaique	Aysén Region
+CL	-5309-07055	America/Punta_Arenas	Magallanes Region
 CL	-2709-10926	Pacific/Easter	Easter Island
 CN	+3114+12128	Asia/Shanghai	Beijing Time
 CN	+4348+08735	Asia/Urumqi	Xinjiang Time

diff --git a/src/tzdata/zoneinfo/zonenow.tab b/src/tzdata/zoneinfo/zonenow.tab
@@ -104,7 +104,7 @@ XX	+4439-06336	America/Halifax	Atlantic ("AST/ADT") - Canada; Bermuda
 XX	+4734-05243	America/St_Johns	Newfoundland ("NST/NDT")
 #
 # -03
-XX	-2332-04637	America/Sao_Paulo	eastern South America
+XX	-2332-04637	America/Sao_Paulo	eastern and southern South America
 #
 # -03/-02 (North America DST)
 XX	+4703-05620	America/Miquelon	St Pierre & Miquelon

diff --git a/src/tzdata/zones b/src/tzdata/zones
@@ -50,6 +50,7 @@ America/Chicago
 America/Chihuahua
 America/Ciudad_Juarez
 America/Costa_Rica
+America/Coyhaique
 America/Cuiaba
 America/Danmarkshavn
 America/Dawson