tzdata/backport-Ays-n-Region-moves-from-04-03-to-03-new-zone.patch

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From ee73bc3a722d297495062b649abc849cfabd588c Mon Sep 17 00:00:00 2001
From: Tim Parenti <tim@timtimeonline.com>
Date: Thu, 20 Mar 2025 11:43:02 -0400
Subject: [PATCH] =?UTF-8?q?Ays=C3=A9n=20Region=20moves=20from=20-04/-03=20?=
=?UTF-8?q?to=20-03;=20new=20zone?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Chile's Aysén Region will join Magallanes Region in observing -03
year-round by not changing its clocks on 2025-04-05 at 24:00.
(Thanks to Yonathan Dossow.)
* southamerica, zone.tab, zone1970.tab, zonenow.tab:
(America/Coyhaique): New Zone, which acts like America/Punta_Arenas
except it switches to year-round -03 on 2025-04-06 not 2016-12-04.
Reference:https://github.com/eggert/tz/commit/ee73bc3a722d297495062b649abc849cfabd588c
Conflict:Remove NEWS, modified southamerica zone.tab zone1970.tab
zonenew.tab to adapt context.
---
southamerica | 27 +++++++++++++++++++++++++++
zone.tab | 1 +
zone1970.tab | 1 +
zonenow.tab | 2 ++
4 files changed, 31 insertions(+)
diff --git a/southamerica b/southamerica
index 1fcf651..2914347 100644
--- a/southamerica
+++ b/southamerica
@@ -1315,6 +1315,19 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# Although the presidential decree stops at fall 2026, assume that
# similar DST rules will continue thereafter.
+# From Paul Eggert (2025-01-15):
+# Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén
+# citizens polled in November favored changing the rules from
+# -04/-03-with-DST to -03 all year...
+# https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen
+#
+# From Yonathan Dossow (2025-03-20):
+# [T]oday we have more confirmation of the change. Aysen region will keep
+# UTC-3 all year...
+# https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/
+# https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/
+# https://x.com/min_interior/status/1902692504270672098
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Chile 1927 1931 - Sep 1 0:00 1:00 -
Rule Chile 1928 1932 - Apr 1 0:00 0 -
@@ -1371,6 +1384,20 @@ Zone America/Santiago -4:42:45 - LMT 1890
-5:00 1:00 -04 1947 Mar 31 24:00
-5:00 - -05 1947 May 21 23:00
-4:00 Chile -04/-03
+Zone America/Coyhaique -4:48:16 - LMT 1890
+ -4:42:45 - SMT 1910 Jan 10
+ -5:00 - %z 1916 Jul 1
+ -4:42:45 - SMT 1918 Sep 10
+ -4:00 - %z 1919 Jul 1
+ -4:42:45 - SMT 1927 Sep 1
+ -5:00 Chile %z 1932 Sep 1
+ -4:00 - %z 1942 Jun 1
+ -5:00 - %z 1942 Aug 1
+ -4:00 - %z 1946 Aug 28 24:00
+ -5:00 1:00 %z 1947 Mar 31 24:00
+ -5:00 - %z 1947 May 21 23:00
+ -4:00 Chile %z 2025 Apr 6
+ -3:00 - %z
Zone America/Punta_Arenas -4:43:40 - LMT 1890
-4:42:45 - SMT 1910 Jan 10
-5:00 - -05 1916 Jul 1
diff --git a/zone.tab b/zone.tab
index be4f7ba..2626b05 100644
--- a/zone.tab
+++ b/zone.tab
@@ -139,6 +139,7 @@ CH +4723+00832 Europe/Zurich
CI +0519-00402 Africa/Abidjan
CK -2114-15946 Pacific/Rarotonga
CL -3327-07040 America/Santiago most of Chile
+CL -4534-07204 America/Coyhaique Aysen Region
CL -5309-07055 America/Punta_Arenas Region of Magallanes
CL -2709-10926 Pacific/Easter Easter Island
CM +0403+00942 Africa/Douala
diff --git a/zone1970.tab b/zone1970.tab
index 03ffe7c..36535bd 100644
--- a/zone1970.tab
+++ b/zone1970.tab
@@ -124,6 +124,7 @@ 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 -4534-07204 America/Coyhaique Aysén Region
CL -5309-07055 America/Punta_Arenas Region of Magallanes
CL -2709-10926 Pacific/Easter Easter Island
CN +3114+12128 Asia/Shanghai Beijing Time
diff --git a/zonenow.tab b/zonenow.tab
index d2c1e48..6aa4167 100644
--- a/zonenow.tab
+++ b/zonenow.tab
@@ -96,6 +96,8 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe
#
# -04/-03 (Chile DST)
XX -3327-07040 America/Santiago most of Chile
+# -04/-03 (Chile DST) until 2025-04-06; then -03
+XX -4534-07204 America/Coyhaique Aysén Region
#
# -04/-03 - AST/ADT (North America DST)
XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda
--
1.8.3.1