Update tzdata to version 2026e

NEWS.md

@@ -1,3 +1,41 @@
+# Version 2026.5
+Upstream version 2026e released 2026-09-30T00:14:38+00:00
+
+## Briefly:
+
+Manitoba moves to permanent -05 on 2026-10-31.
+
+## Changes to future timestamps
+
+Manitoba’s 2026-03-08 spring forward was its last foreseeable clock change, as
+it moved to permanent -05 thereafter.  Model this with its traditional
+abbreviation EST.  Although the change to permanent -05 legally takes place on
+2026-10-31, temporarily model the change to occur on 2026-11-01 at 02:00 for the
+same reason as other recent temporary hacks.  (Caution: see “NOTE FOR 2026b
+TEMPORARY HACK FOR CLDR AND CANADA” below.)
+
+As the change affects both America/Winnipeg and its backward compatibility link,
+the obsolescent setting TZ="Canada/Central" will now use the abbreviation EST
+for affected timestamps, akin to TZ="Canada/Pacific" behavior introduced in
+2026b.
+
+Another TZDB release may be needed soon if any of the portions of northwestern
+Ontario historically aligned with America/Winnipeg do not follow.  For now,
+given the short leadtime with Manitoba’s announcement, assume that they will, to
+avoid creating new zones that may not be needed if no divergence occurs.
+
+## Changes to past timestamps
+
+In 1925 Ireland fell back on 09-20 not 10-04 (thanks to Stan Ulbrych).
+
+## Changes to commentary
+
+Discussion on timekeeping practices in northwestern Ontario has been expanded in
+light of Manitoba’s recent announcement.  It is not yet known whether or to what
+extent these areas may adapt their own timekeeping practices in response.
+
+---
+
 # Version 2026.4
 Upstream version 2026d released 2026-09-11T22:21:07+00:00
 

VERSION

@@ -1 +1 @@
-2026.4
+2026.5

news.d/2026e.md

@@ -0,0 +1,35 @@
+# Version 2026.5
+Upstream version 2026e released 2026-09-30T00:14:38+00:00
+
+## Briefly:
+
+Manitoba moves to permanent -05 on 2026-10-31.
+
+## Changes to future timestamps
+
+Manitoba’s 2026-03-08 spring forward was its last foreseeable clock change, as
+it moved to permanent -05 thereafter.  Model this with its traditional
+abbreviation EST.  Although the change to permanent -05 legally takes place on
+2026-10-31, temporarily model the change to occur on 2026-11-01 at 02:00 for the
+same reason as other recent temporary hacks.  (Caution: see “NOTE FOR 2026b
+TEMPORARY HACK FOR CLDR AND CANADA” below.)
+
+As the change affects both America/Winnipeg and its backward compatibility link,
+the obsolescent setting TZ="Canada/Central" will now use the abbreviation EST
+for affected timestamps, akin to TZ="Canada/Pacific" behavior introduced in
+2026b.
+
+Another TZDB release may be needed soon if any of the portions of northwestern
+Ontario historically aligned with America/Winnipeg do not follow.  For now,
+given the short leadtime with Manitoba’s announcement, assume that they will, to
+avoid creating new zones that may not be needed if no divergence occurs.
+
+## Changes to past timestamps
+
+In 1925 Ireland fell back on 09-20 not 10-04 (thanks to Stan Ulbrych).
+
+## Changes to commentary
+
+Discussion on timekeeping practices in northwestern Ontario has been expanded in
+light of Manitoba’s recent announcement.  It is not yet known whether or to what
+extent these areas may adapt their own timekeeping practices in response.

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__ = "2026.4"
+__version__ = "2026.5"
 
 # This exposes the original IANA version number.
-IANA_VERSION = "2026d"
+IANA_VERSION = "2026e"

src/tzdata/zoneinfo/tzdata.zi

@@ -1,4 +1,4 @@
-# version 2026d
+# version 2026e
 # redo posix_only
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
@@ -2870,7 +2870,9 @@ Z America/Whitehorse -9:0:12 - LMT 1900 Au 20
 -7 - MST
 Z America/Winnipeg -6:28:36 - LMT 1887 Jul 16
 -6 W C%sT 2006
--6 C C%sT
+-6 C C%sT 2026 O 31
+-6 C CDT 2026 N 1 2
+-5 - EST
 Z America/Yakutat 14:41:5 - LMT 1867 O 19 0:31:13u
 -9:18:55 - LMT 1900 Au 20 12
 -9 - YST 1942
@@ -3570,6 +3572,8 @@ Z Europe/Dublin -0:25:21 - LMT 1880 Au 2
 -0:25:21 - DMT 1916 May 21 2s
 -0:25:21 1 IST 1916 O 1 2s
 0 G %s 1921 D 6
+0 G GMT/IST 1925 S Su>=16 2s
+0 - GMT 1926
 0 G GMT/IST 1940 F 25 2s
 0 1 IST 1946 O 6 2s
 0 - GMT 1947 Mar 16 2s

src/tzdata/zoneinfo/zone.tab

@@ -116,7 +116,7 @@ CA	+5125-05707	America/Blanc-Sablon	AST - QC (Lower North Shore)
 CA	+4339-07923	America/Toronto	Eastern - ON & QC (most areas)
 CA	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
 CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan), NU (Coral H)
-CA	+4953-09709	America/Winnipeg	Central - ON (west), Manitoba
+CA	+4953-09709	America/Winnipeg	EST - Manitoba, ON (northwest)
 CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
 CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
 CA	+5024-10439	America/Regina	CST - SK (most areas)

src/tzdata/zoneinfo/zone1970.tab

@@ -107,7 +107,7 @@ CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
 CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
 CA,BS	+4339-07923	America/Toronto	Eastern - ON & QC (most areas)
 CA	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
-CA	+4953-09709	America/Winnipeg	Central - ON (west), Manitoba
+CA	+4953-09709	America/Winnipeg	EST - Manitoba, ON (northwest)
 CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
 CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
 CA	+5024-10439	America/Regina	CST - SK (most areas)

src/tzdata/zoneinfo/zonenow.tab

@@ -80,7 +80,10 @@ XX	+1924-09909	America/Mexico_City	Central Standard (CST) - Saskatchewan; centra
 XX	-2709-10926	Pacific/Easter	Easter Island
 #
 # -06/-05 - CST/CDT (North America DST)
-XX	+415100-0873900	America/Chicago	Central (CST/CDT) - US & Canada; Mexico near US border
+XX	+415100-0873900	America/Chicago	Central (CST/CDT) - US; Mexico near US border; central Nunavut
+#
+# -06/-05 - CST/CDT (North America DST) until 2026-11-01 02:00; then EST
+XX	+4953-09709	America/Winnipeg	Eastern Standard (EST) - Manitoba, northwestern Ontario
 #
 # -05
 XX	-1203-07703	America/Lima	eastern South America