Package: release.debian.org
Severity: normal
Tags: bookworm
User: release.debian....@packages.debian.org
Usertags: pu
X-Debbugs-Cc: tzd...@packages.debian.org
Control: affects -1 + src:tzdata

[ Reason ]
A new upstream version of tzdata, 2023d, has been released with time
zone changes that might affect some of our users.

[ Impact ]
Some users might will have the wrong time on their system

[ Tests ]
There are no test for these changes.

[ Risks ]
The risk is quite low, importing new upstream version of tzdata has been
done many times in the past. In addition this new upstream version is in
testing/unstable for 3 weeks without any know issues.

[ Checklist ]
  [x] *all* changes are documented in the d/changelog
  [x] I reviewed all changes and I approve them
  [x] attach debdiff against the package in (old)stable
  [x] the issue is verified as fixed in unstable

[ Changes ]
The new upstream version contains the following changes to past and
future timestamps:
- Ittoqqortoormiit, Greenland changes time zones on 2024-03-31.
- Vostok, Antarctica changed time zones on 2023-12-18.
- Casey, Antarctica changed time zones five times since 2020.
- Code and data fixes for Palestine timestamps starting in 2072.

In addition the leap second patch is dropped, as it is included in the
new upstream version.

[ Other info ]
I have already uploaded the package to the archive, thanks for
considering.
diff -Nru tzdata-2023c/africa tzdata-2023d/africa
--- tzdata-2023c/africa 2023-03-15 21:07:54.000000000 +0100
+++ tzdata-2023d/africa 2023-09-11 15:56:39.000000000 +0200
@@ -285,13 +285,6 @@
 # reproduced by other (more accessible) sites[, e.g.,]...
 # http://elgornal.net/news/news.aspx?id=4699258
 
-# From Paul Eggert (2014-06-04):
-# Sarah El Deeb and Lee Keath of AP report that the Egyptian government says
-# the change is because of blackouts in Cairo, even though Ahram Online (cited
-# above) says DST had no affect on electricity consumption.  There is
-# no information about when DST will end this fall.  See:
-# 
http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833
-
 # From Steffen Thorsen (2015-04-08):
 # Egypt will start DST on midnight after Thursday, April 30, 2015.
 # This is based on a law (no 35) from May 15, 2014 saying it starts the last
diff -Nru tzdata-2023c/antarctica tzdata-2023d/antarctica
--- tzdata-2023c/antarctica     2023-01-24 08:20:36.000000000 +0100
+++ tzdata-2023d/antarctica     2023-12-20 18:26:39.000000000 +0100
@@ -80,6 +80,11 @@
 # - 2018 Oct  7 4:00 - 2019 Mar 17 3:00 - 2019 Oct  4 3:00 - 2020 Mar  8 3:00
 # and now - 2020 Oct  4 0:01
 
+# From Paul Eggert (2023-12-20):
+# Transitions from 2021 on are taken from:
+# https://www.timeanddate.com/time/zone/antarctica/casey
+# retrieved at various dates.
+
 # Zone NAME            STDOFF  RULES   FORMAT  [UNTIL]
 Zone Antarctica/Casey   0      -       -00     1969
                         8:00   -       +08     2009 Oct 18  2:00
@@ -93,7 +98,12 @@
                         8:00   -       +08     2019 Oct  4  3:00
                        11:00   -       +11     2020 Mar  8  3:00
                         8:00   -       +08     2020 Oct  4  0:01
-                       11:00   -       +11
+                       11:00   -       +11     2021 Mar 14  0:00
+                        8:00   -       +08     2021 Oct  3  0:01
+                       11:00   -       +11     2022 Mar 13  0:00
+                        8:00   -       +08     2022 Oct  2  0:01
+                       11:00   -       +11     2023 Mar  9  3:00
+                        8:00   -       +08
 Zone Antarctica/Davis  0       -       -00     1957 Jan 13
                        7:00    -       +07     1964 Nov
                        0       -       -00     1969 Feb
@@ -240,7 +250,50 @@
 #      year-round from 1960/61 to 1992
 
 # Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11
-# See Asia/Urumqi.
+# From Craig Mundell (1994-12-15):
+# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP
+# Vostok, which is one of the Russian stations, is set on the same
+# time as Moscow, Russia.
+#
+# From Lee Hotz (2001-03-08):
+# I queried the folks at Columbia who spent the summer at Vostok and this is
+# what they had to say about time there:
+# "in the US Camp (East Camp) we have been on New Zealand (McMurdo)
+# time, which is 12 hours ahead of GMT. The Russian Station Vostok was
+# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead
+# of GMT). This is a time zone I think two hours east of Moscow. The
+# natural time zone is in between the two: 8 hours ahead of GMT."
+#
+# From Paul Eggert (2001-05-04):
+# This seems to be hopelessly confusing, so I asked Lee Hotz about it
+# in person.  He said that some Antarctic locations set their local
+# time so that noon is the warmest part of the day, and that this
+# changes during the year and does not necessarily correspond to mean
+# solar noon.  So the Vostok time might have been whatever the clocks
+# happened to be during their visit.  So we still don't really know what time
+# it is at Vostok.
+#
+# From Zakhary V. Akulov (2023-12-17 22:00:48 +0700):
+# ... from December, 18, 2023 00:00 by my decision the local time of
+# the Antarctic research base Vostok will correspond to UTC+5.
+# (2023-12-19): We constantly interact with Progress base, with company who
+# builds new wintering station, with sledge convoys, with aviation - they all
+# use UTC+5. Besides, difference between Moscow time is just 2 hours now, not 
4.
+# (2023-12-19, in response to the question "Has local time at Vostok
+# been UTC+6 ever since 1957, or has it changed before?"): No. At least
+# since my antarctic career start, 10 years ago, Vostok base has UTC+7.
+# (In response to a 2023-12-18 question "from 02:00 to 00:00 today"): This.
+#
+# From Paul Eggert (2023-12-18):
+# For lack of better info, guess Vostok was at +07 from founding through today,
+# except when closed.
+
+# Zone NAME            STDOFF  RULES   FORMAT  [UNTIL]
+Zone Antarctica/Vostok 0       -       -00     1957 Dec 16
+                       7:00    -       +07     1994 Feb
+                       0       -       -00     1994 Nov
+                       7:00    -       +07     2023 Dec 18  2:00
+                       5:00    -       +05
 
 # S Africa - year-round bases
 # Marion Island, -4653+03752
diff -Nru tzdata-2023c/asia tzdata-2023d/asia
--- tzdata-2023c/asia   2023-03-28 00:14:40.000000000 +0200
+++ tzdata-2023d/asia   2023-12-19 11:58:19.000000000 +0100
@@ -655,7 +655,6 @@
                        8:00    PRC     C%sT
 # Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
 # / Wulumuqi.  (Please use Asia/Shanghai if you prefer Beijing time.)
-# Vostok base in Antarctica matches this since 1970.
 Zone   Asia/Urumqi     5:50:20 -       LMT     1928
                        6:00    -       +06
 
@@ -3427,6 +3426,9 @@
 # From Heba Hamad (2023-03-22):
 # ... summer time will begin in Palestine from Saturday 04-29-2023,
 # 02:00 AM by 60 minutes forward.
+# From Heba Hemad (2023-10-09):
+# ... winter time will begin in Palestine from Saturday 10-28-2023,
+# 02:00 AM by 60 minutes back.
 #
 # From Paul Eggert (2023-03-22):
 # For now, guess that spring and fall transitions will normally
@@ -3548,13 +3550,13 @@
 Rule Palestine 2071    only    -       Sep     19      2:00    0       -
 Rule Palestine 2072    only    -       Sep     10      2:00    0       -
 Rule Palestine 2072    only    -       Oct     15      2:00    1:00    S
+Rule Palestine 2072    max     -       Oct     Sat<=30 2:00    0       -
 Rule Palestine 2073    only    -       Sep      2      2:00    0       -
 Rule Palestine 2073    only    -       Oct      7      2:00    1:00    S
 Rule Palestine 2074    only    -       Aug     18      2:00    0       -
 Rule Palestine 2074    only    -       Sep     29      2:00    1:00    S
 Rule Palestine 2075    only    -       Aug     10      2:00    0       -
 Rule Palestine 2075    only    -       Sep     14      2:00    1:00    S
-Rule Palestine 2075    max     -       Oct     Sat<=30 2:00    0       -
 Rule Palestine 2076    only    -       Jul     25      2:00    0       -
 Rule Palestine 2076    only    -       Sep      5      2:00    1:00    S
 Rule Palestine 2077    only    -       Jul     17      2:00    0       -
diff -Nru tzdata-2023c/australasia tzdata-2023d/australasia
--- tzdata-2023c/australasia    2023-03-15 20:47:43.000000000 +0100
+++ tzdata-2023d/australasia    2023-10-06 16:11:09.000000000 +0200
@@ -391,8 +391,14 @@
 # Please note that there will not be any daylight savings time change
 # in Fiji for 2022-2023....
 # 
https://www.facebook.com/FijianGovernment/posts/pfbid0mmWVTYmTibn66ybpFda75pDcf34SSpoSaskJW5gXwaKo5Sgc7273Q4fXWc6kQV6Hl
+
+# From Almaz Mingaleev (2023-10-06):
+# Cabinet approved the suspension of Daylight Saving and appropriate
+# legislative changes will be considered including the repeal of the
+# Daylight Saving Act 1998
+# 
https://www.fiji.gov.fj/Media-Centre/Speeches/English/CABINET-DECISIONS-3-OCTOBER-2023
 #
-# From Paul Eggert (2022-10-27):
+# From Paul Eggert (2023-10-06):
 # For now, assume DST is suspended indefinitely.
 
 # Rule NAME    FROM    TO      -       IN      ON      AT      SAVE    LETTER/S
diff -Nru tzdata-2023c/backward tzdata-2023d/backward
--- tzdata-2023c/backward       2022-12-09 18:47:38.000000000 +0100
+++ tzdata-2023d/backward       2023-12-19 11:58:19.000000000 +0100
@@ -205,7 +205,6 @@
 Link   Pacific/Port_Moresby    Antarctica/DumontDUrville
 Link   Pacific/Auckland        Antarctica/McMurdo
 Link   Asia/Riyadh             Antarctica/Syowa
-Link   Asia/Urumqi             Antarctica/Vostok
 Link   Europe/Berlin           Arctic/Longyearbyen
 Link   Asia/Riyadh             Asia/Aden
 Link   Asia/Qatar              Asia/Bahrain
diff -Nru tzdata-2023c/backzone tzdata-2023d/backzone
--- tzdata-2023c/backzone       2023-03-08 05:00:17.000000000 +0100
+++ tzdata-2023d/backzone       2023-12-19 11:58:19.000000000 +0100
@@ -963,35 +963,6 @@
 Zone Antarctica/Syowa  0       -       -00     1957 Jan 29
                        3:00    -       +03
 
-# Vostok, Antarctica
-#
-# Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11
-# From Craig Mundell (1994-12-15):
-# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP
-# Vostok, which is one of the Russian stations, is set on the same
-# time as Moscow, Russia.
-#
-# From Lee Hotz (2001-03-08):
-# I queried the folks at Columbia who spent the summer at Vostok and this is
-# what they had to say about time there:
-# "in the US Camp (East Camp) we have been on New Zealand (McMurdo)
-# time, which is 12 hours ahead of GMT. The Russian Station Vostok was
-# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead
-# of GMT). This is a time zone I think two hours east of Moscow. The
-# natural time zone is in between the two: 8 hours ahead of GMT."
-#
-# From Paul Eggert (2001-05-04):
-# This seems to be hopelessly confusing, so I asked Lee Hotz about it
-# in person.  He said that some Antarctic locations set their local
-# time so that noon is the warmest part of the day, and that this
-# changes during the year and does not necessarily correspond to mean
-# solar noon.  So the Vostok time might have been whatever the clocks
-# happened to be during their visit.  So we still don't really know what time
-# it is at Vostok.  But we'll guess +06.
-#
-Zone Antarctica/Vostok 0       -       -00     1957 Dec 16
-                       6:00    -       +06
-
 # Yemen
 # Milne says 2:59:54 was the meridian of the saluting battery at Aden,
 # and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
diff -Nru tzdata-2023c/checknow.awk tzdata-2023d/checknow.awk
--- tzdata-2023c/checknow.awk   1970-01-01 01:00:00.000000000 +0100
+++ tzdata-2023d/checknow.awk   2023-12-20 18:26:39.000000000 +0100
@@ -0,0 +1,54 @@
+# Check zonenow.tab for consistency with primary data.
+
+# Contributed by Paul Eggert.  This file is in the public domain.
+
+function record_zone(zone, data) {
+  if (zone) {
+    zone_data[zone] = data
+    zones[data] = zones[data] " " zone
+  }
+}
+
+BEGIN {
+  while (getline <zdump_table) {
+    if ($0 ~ /^TZ/) {
+      record_zone(zone, data)
+      zone = $0
+      sub(/.*\.dir\//, "", zone)
+      sub(/\/\//, "/", zone)
+      sub(/"/, "", zone)
+      data = ""
+    } else if ($0 ~ /./)
+      data = data $0 "\n"
+  }
+  record_zone(zone, data)
+  FS = "\t"
+}
+
+/^[^#]/ {
+  zone = $3
+  data = zone_data[zone]
+  if (!data) {
+    printf "%s: no data\n", zone
+    status = 1
+  } else {
+    zone2 = zonenow[data]
+    if (zone2) {
+      printf "zones %s and %s identical from now on\n", zone, zone2
+      status = 1
+    } else
+      zonenow[data] = zone
+  }
+}
+
+END {
+ for (zone in zone_data) {
+    data = zone_data[zone]
+    if (!zonenow[data]) {
+      printf "checknow.tab should have one of:%s\n", zones[data]
+      zonenow[data] = zone # This suppresses duplicate diagnostics.
+      status = 1
+    }
+ }
+ exit status
+}
diff -Nru tzdata-2023c/checktab.awk tzdata-2023d/checktab.awk
--- tzdata-2023c/checktab.awk   2023-01-08 18:51:56.000000000 +0100
+++ tzdata-2023d/checktab.awk   2023-12-19 00:25:06.000000000 +0100
@@ -83,7 +83,7 @@
                    cc = cca[i]
                    if (cc2name[cc]) {
                        cc_used[cc]++
-                   } else {
+                   } else if (! (cc == "XX" && zone_table == "zonenow.tab")) {
                        printf "%s:%d: %s: unknown country code\n", \
                                zone_table, zone_NR, cc >>"/dev/stderr"
                        status = 1
@@ -110,7 +110,7 @@
              used_max_cc = cc
            }
          }
-         if (used_max <= 1 && comments) {
+         if (used_max <= 1 && comments && zone_table != "zonenow.tab") {
            printf "%s:%d: unnecessary comment '%s'\n", \
              zone_table, i, comments \
              >>"/dev/stderr"
@@ -149,7 +149,8 @@
                if ($3 ~ /%/) rulePercentUsed[$2] = 1
        }
        if (tz && tz ~ /\// && tz !~ /^Etc\//) {
-               if (!tztab[tz] && FILENAME != "backward") {
+               if (!tztab[tz] && FILENAME != "backward" \
+                   && zone_table != "zonenow.tab") {
                        printf "%s: no data for '%s'\n", zone_table, tz \
                                >>"/dev/stderr"
                        status = 1
diff -Nru tzdata-2023c/debian/changelog tzdata-2023d/debian/changelog
--- tzdata-2023c/debian/changelog       2023-11-28 20:21:17.000000000 +0100
+++ tzdata-2023d/debian/changelog       2024-01-25 22:09:03.000000000 +0100
@@ -1,3 +1,14 @@
+tzdata (2023d-0+deb12u1) bookworm; urgency=medium
+
+  * New upstream version:
+    - Ittoqqortoormiit, Greenland changes time zones on 2024-03-31.
+    - Vostok, Antarctica changed time zones on 2023-12-18.
+    - Casey, Antarctica changed time zones five times since 2020.
+    - Code and data fixes for Palestine timestamps starting in 2072.
+  * Drop leap-seconds.list patch (taken from upstream)
+
+ -- Aurelien Jarno <aure...@debian.org>  Thu, 25 Jan 2024 22:09:03 +0100
+
 tzdata (2023c-5+deb12u1) bookworm; urgency=medium
 
   * Update leap-seconds.list from upstream
diff -Nru tzdata-2023c/debian/patches/01-no-leap-second-on-2023-12-31.patch 
tzdata-2023d/debian/patches/01-no-leap-second-on-2023-12-31.patch
--- tzdata-2023c/debian/patches/01-no-leap-second-on-2023-12-31.patch   
2023-11-28 18:10:13.000000000 +0100
+++ tzdata-2023d/debian/patches/01-no-leap-second-on-2023-12-31.patch   
1970-01-01 01:00:00.000000000 +0100
@@ -1,41 +0,0 @@
-From c3e966c59b02b1f47f0b7b0e4aa6a86563c07062 Mon Sep 17 00:00:00 2001
-From: Tim Parenti <t...@timtimeonline.com>
-Date: Mon, 14 Aug 2023 15:29:57 -0400
-Subject: [PATCH] No leap second on 2023-12-31
-
-Per IERS Bulletin C 66 (2023-07-04).
-https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.66
-
-* leap-seconds.list: Update file from NIST, retrieved from
-ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list
----
- leap-seconds.list | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/leap-seconds.list b/leap-seconds.list
-index 17e3a100..3fe9a121 100644
---- a/leap-seconds.list
-+++ b/leap-seconds.list
-@@ -204,10 +204,10 @@
- #     current -- the update time stamp, the data and the name of the file
- #     will not change.
- #
--#     Updated through IERS Bulletin C65
--#     File expires on:  28 December 2023
-+#     Updated through IERS Bulletin C66
-+#     File expires on:  28 June 2024
- #
--#@    3912710400
-+#@    3928521600
- #
- 2272060800    10      # 1 Jan 1972
- 2287785600    11      # 1 Jul 1972
-@@ -252,4 +252,4 @@
- #     the hash line is also ignored in the
- #     computation.
- #
--#h    e76a99dc 65f15cc7 e613e040 f5078b5e b23834fe
-+#h    16edd0f0 3666784f 37db6bdd e74ced87 59af48f1
--- 
-2.42.0
-
diff -Nru tzdata-2023c/debian/patches/series tzdata-2023d/debian/patches/series
--- tzdata-2023c/debian/patches/series  2023-11-28 18:10:13.000000000 +0100
+++ tzdata-2023d/debian/patches/series  1970-01-01 01:00:00.000000000 +0100
@@ -1 +0,0 @@
-01-no-leap-second-on-2023-12-31.patch
diff -Nru tzdata-2023c/europe tzdata-2023d/europe
--- tzdata-2023c/europe 2023-03-15 20:47:43.000000000 +0100
+++ tzdata-2023d/europe 2023-11-11 13:32:45.000000000 +0100
@@ -1123,6 +1123,23 @@
 # 2. The shift *from* DST in 2023 happens as normal, but coincides with the
 #    shift to UTC-02 normaltime (people will not change their clocks here).
 # 3. After this, DST is still observed, but as -02/-01 instead of -03/-02.
+#
+# From Múte Bourup Egede via Jógvan Svabo Samuelsen (2023-03-15):
+# Greenland will not switch to Daylight Saving Time this year, 2023,
+# because the standard time for Greenland will change from UTC -3 to UTC -2.
+# However, Greenland will change to Daylight Saving Time again in 2024
+# and onwards.
+
+# From a contributor who wishes to remain anonymous for now (2023-10-29):
+# 
https://www.dr.dk/nyheder/seneste/i-nat-skal-uret-stilles-en-time-tilbage-men-foerste-gang-sker-det-ikke-i-groenland
+# with a link to that page:
+# https://naalakkersuisut.gl/Nyheder/2023/10/2710_sommertid
+# ... Ittoqqortoormiit joins the time of Nuuk at March 2024.
+# What would mean that America/Scoresbysund would either be in -01 year round
+# or in -02/-01 like America/Nuuk, but no longer in -01/+00.
+#
+# From Paul Eggert (2023-10-29):
+# For now, assume it will be like America/Nuuk.
 
 # Rule NAME    FROM    TO      -       IN      ON      AT      SAVE    LETTER/S
 Rule   Thule   1991    1992    -       Mar     lastSun 2:00    1:00    D
@@ -1143,10 +1160,12 @@
 Zone America/Scoresbysund -1:27:52 -   LMT     1916 Jul 28 # Ittoqqortoormiit
                        -2:00   -       -02     1980 Apr  6  2:00
                        -2:00   C-Eur   -02/-01 1981 Mar 29
-                       -1:00   EU      -01/+00
+                       -1:00   EU      -01/+00 2024 Mar 31
+                       -2:00   EU      -02/-01
 Zone America/Nuuk      -3:26:56 -      LMT     1916 Jul 28 # Godthåb
                        -3:00   -       -03     1980 Apr  6  2:00
-                       -3:00   EU      -03/-02 2023 Oct 29  1:00u
+                       -3:00   EU      -03/-02 2023 Mar 26  1:00u
+                       -2:00   -       -02     2023 Oct 29  1:00u
                        -2:00   EU      -02/-01
 Zone America/Thule     -4:35:08 -      LMT     1916 Jul 28 # Pituffik
                        -4:00   Thule   A%sT
@@ -3711,11 +3730,7 @@
 # and not at 3:00 as would have been under EU rules.
 # This is why I have set the change to EU rules into May 1996,
 # so that the change in March is stil covered by the Ukraine rule.
-# The next change in October 1996 happened under EU rules....
-# TZ database holds three other zones for Ukraine.... I have not yet
-# worked out the consequences for these three zones, as we (me and my
-# US colleague David Cochrane) are still trying to get more
-# information upon these local deviations from Kiev rules.
+# The next change in October 1996 happened under EU rules.
 #
 # From Paul Eggert (2022-08-27):
 # For now, assume that Ukraine's zones all followed the same rules,
diff -Nru tzdata-2023c/iso3166.tab tzdata-2023d/iso3166.tab
--- tzdata-2023c/iso3166.tab    2023-01-07 22:09:29.000000000 +0100
+++ tzdata-2023d/iso3166.tab    2023-09-06 15:53:46.000000000 +0200
@@ -3,17 +3,22 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
-# From Paul Eggert (2022-11-18):
+# From Paul Eggert (2023-09-06):
 # This file contains a table of two-letter country codes.  Columns are
 # separated by a single tab.  Lines beginning with '#' are comments.
 # All text uses UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO 3166-1 N1087 (2022-09-02).  See: Updates on ISO 3166-1
-#     https://isotc.iso.org/livelink/livelink/Open/16944257
-# 2.  The usual English name for the coded region,
-#     chosen so that alphabetic sorting of subsets produces helpful lists.
-#     This is not the same as the English name in the ISO 3166 tables.
+#     ISO/TC 46 N1108 (2023-04-05).  See: ISO/TC 46 Documents
+#     https://www.iso.org/committee/48750.html?view=documents
+# 2.  The usual English name for the coded region.  This sometimes
+#     departs from ISO-listed names, sometimes so that sorted subsets
+#     of names are useful (e.g., "Samoa (American)" and "Samoa
+#     (western)" rather than "American Samoa" and "Samoa"),
+#     sometimes to avoid confusion among non-experts (e.g.,
+#     "Czech Republic" and "Turkey" rather than "Czechia" and "Türkiye"),
+#     and sometimes to omit needless detail or churn (e.g., "Netherlands"
+#     rather than "Netherlands (the)" or "Netherlands (Kingdom of the)").
 #
 # The table is sorted by country code.
 #
diff -Nru tzdata-2023c/leapseconds tzdata-2023d/leapseconds
--- tzdata-2023c/leapseconds    2023-01-20 23:45:12.000000000 +0100
+++ tzdata-2023d/leapseconds    2023-08-14 17:29:58.000000000 +0200
@@ -72,11 +72,11 @@
 # Any additional leap seconds will come after this.
 # This Expires line is commented out for now,
 # so that pre-2020a zic implementations do not reject this file.
-#Expires 2023  Dec     28      00:00:00
+#Expires 2024  Jun     28      00:00:00
 
 # POSIX timestamps for the data in this file:
 #updated 1467936000 (2016-07-08 00:00:00 UTC)
-#expires 1703721600 (2023-12-28 00:00:00 UTC)
+#expires 1719532800 (2024-06-28 00:00:00 UTC)
 
-#      Updated through IERS Bulletin C65
-#      File expires on:  28 December 2023
+#      Updated through IERS Bulletin C66
+#      File expires on:  28 June 2024
diff -Nru tzdata-2023c/leap-seconds.list tzdata-2023d/leap-seconds.list
--- tzdata-2023c/leap-seconds.list      2023-01-20 23:45:11.000000000 +0100
+++ tzdata-2023d/leap-seconds.list      2023-08-14 17:29:57.000000000 +0200
@@ -204,10 +204,10 @@
 #      current -- the update time stamp, the data and the name of the file
 #      will not change.
 #
-#      Updated through IERS Bulletin C65
-#      File expires on:  28 December 2023
+#      Updated through IERS Bulletin C66
+#      File expires on:  28 June 2024
 #
-#@     3912710400
+#@     3928521600
 #
 2272060800     10      # 1 Jan 1972
 2287785600     11      # 1 Jul 1972
@@ -252,4 +252,4 @@
 #      the hash line is also ignored in the
 #      computation.
 #
-#h     e76a99dc 65f15cc7 e613e040 f5078b5e b23834fe
+#h     16edd0f0 3666784f 37db6bdd e74ced87 59af48f1
diff -Nru tzdata-2023c/Makefile tzdata-2023d/Makefile
--- tzdata-2023c/Makefile       2023-03-13 09:13:21.000000000 +0100
+++ tzdata-2023d/Makefile       2023-12-20 18:26:39.000000000 +0100
@@ -1,7 +1,25 @@
 # Make and install tzdb code and data.
-
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
+# Request POSIX conformance; this must be the first non-comment line.
+.POSIX:
+# On older platforms you may need to scrounge for a POSIX-conforming 'make'.
+# For example, on Solaris 10 (2005), use /usr/sfw/bin/gmake or
+# /usr/xpg4/bin/make, not /usr/ccs/bin/make.
+
+# To affect how this Makefile works, you can run a shell script like this:
+#
+#      #!/bin/sh
+#      make CC='gcc -std=gnu11' "$@"
+#
+# This example script is appropriate for a pre-2017 GNU/Linux system
+# where a non-default setting is needed to support this package's use of C99.
+#
+# Alternatively, you can simply edit this Makefile to tailor the following
+# macro definitions.
+
+###############################################################################
+# Start of macros that one plausibly might want to tailor.
 
 # Package name for the code distribution.
 PACKAGE=       tzcode
@@ -191,8 +209,9 @@
 # On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0.
 LDLIBS=
 
-# Add the following to the end of the "CFLAGS=" line as needed to override
-# defaults specified in the source code.  "-DFOO" is equivalent to "-DFOO=1".
+# Add the following to an uncommented "CFLAGS=" line as needed
+# to override defaults specified in the source code or by the system.
+# "-DFOO" is equivalent to "-DFOO=1".
 #  -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
 #      formats that generate only the last two digits of year numbers
 #  -DEPOCH_LOCAL if the 'time' function returns local time not UT
@@ -234,11 +253,16 @@
 #  -DHAVE_UNISTD_H=0 if <unistd.h> does not work*
 #  -DHAVE_UTMPX_H=0 if <utmpx.h> does not work*
 #  -Dlocale_t=XXX if your system uses XXX instead of locale_t
-#  -DPORT_TO_C89 if tzcode should also run on C89 platforms+
+#  -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+
+#      Typically it is better to use a later standard.  For example,
+#      with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'.
+#      Even with -DPORT_TO_C89, the code needs at least one C99
+#      feature (integers at least 64 bits wide) and maybe more.
 #  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
 #      with external linkage, e.g., applications cannot define 'localtime'.
 #  -Dssize_t=long on hosts like MS-Windows that lack ssize_t
 #  -DSUPPORT_C89 if the tzcode library should support C89 callers+
+#      However, this might trigger latent bugs in C99-or-later callers.
 #  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
 #      security implications and is not recommended for general use
 #  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
@@ -270,11 +294,15 @@
 #  -DZIC_MAX_ABBR_LEN_WO_WARN=3
 #      (or some other number) to set the maximum time zone abbreviation length
 #      that zic will accept without a warning (the default is 6)
+#  -g to generate symbolic debugging info
+#  -Idir to include from directory 'dir'
+#  -O0 to disable optimization; other -O options to enable more optimization
+#  -Uname to remove any definition of the macro 'name'
 #  $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
 #
 # * Options marked "*" can be omitted if your compiler is C23 compatible.
 # * Options marked "+" are obsolescent and are planned to be removed
-#   once the code assumes C99 or later.
+#   once the code assumes C99 or later, say in the year 2029.
 #
 # Select instrumentation via "make GCC_INSTRUMENT='whatever'".
 GCC_INSTRUMENT = \
@@ -353,9 +381,11 @@
 # functions to be added to the time conversion library.
 # "offtime" is like "gmtime" except that it accepts a second (long) argument
 # that gives an offset to add to the time_t when converting it.
-# "timelocal" is equivalent to "mktime".
+# I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone.
+# "timelocal" is nearly equivalent to "mktime".
 # "timeoff" is like "timegm" except that it accepts a second (long) argument
 # that gives an offset to use when converting to a time_t.
+# I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone.
 # "posix2time" and "time2posix" are described in an included manual page.
 # X3J11's work does not describe any of these functions.
 # These functions may well disappear in future releases of the time
@@ -378,7 +408,7 @@
 #
 # NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
 # out by the National Institute of Standards and Technology
-# which claims to test C and Posix conformance.  If you want to pass PCTS, add
+# which claims to test C and POSIX conformance.  If you want to pass PCTS, add
 #      -DPCTS
 # to the end of the "CFLAGS=" line.
 #
@@ -388,13 +418,21 @@
 # 53 as a week number (rather than 52 or 53) for January days before
 # January's first Monday when a "%V" format is used and January 1
 # falls on a Friday, Saturday, or Sunday.
+#
+# POSIX says CFLAGS defaults to "-O 1".
+# Uncomment the following line and edit its contents as needed.
 
-CFLAGS=
+#CFLAGS= -O 1
 
-# Linker flags.  Default to $(LFLAGS) for backwards compatibility
-# to release 2012h and earlier.
 
-LDFLAGS=       $(LFLAGS)
+# The name of a POSIX-like library archiver, its flags, C compiler,
+# linker flags, and 'make' utility.  Ordinarily the defaults suffice.
+# The commented-out values are the defaults specified by POSIX 202x/D3.
+#AR = ar
+#ARFLAGS = -rv
+#CC = c17
+#LDFLAGS =
+#MAKE = make
 
 # For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
 # submake command lines.  The default is no leap seconds.
@@ -418,18 +456,18 @@
 
 ZIC_INSTALL=   $(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)
 
-# The name of a Posix-compliant 'awk' on your system.
+# The name of a POSIX-compliant 'awk' on your system.
 # mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
 # Also, it is better (though not essential) if 'awk' supports UTF-8,
 # and unfortunately mawk and busybox awk do not support UTF-8.
 # Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
 AWK=           awk
 
-# The full path name of a Posix-compliant shell, preferably one that supports
+# The full path name of a POSIX-compliant shell, preferably one that supports
 # the Korn shell's 'select' statement as an extension.
 # These days, Bash is the most popular.
 # It should be OK to set this to /bin/sh, on platforms where /bin/sh
-# lacks 'select' or doesn't completely conform to Posix, but /bin/bash
+# lacks 'select' or doesn't completely conform to POSIX, but /bin/bash
 # is typically nicer if it works.
 KSHELL=                /bin/bash
 
@@ -503,17 +541,16 @@
 DIFF_TZS=       diff -u$$(! diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1 \
                           || echo ' -F^TZ=')
 
-###############################################################################
-
-#MAKE=         make
+# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
+RANLIB=                :
 
-cc=            cc
-CC=            $(cc) -DTZDIR='"$(TZDIR)"'
+# POSIX prohibits defining or using SHELL.  However, csh users on systems
+# that use the user shell for Makefile commands may need to define SHELL.
+#SHELL=                /bin/sh
 
-AR=            ar
+# End of macros that one plausibly might want to tailor.
+###############################################################################
 
-# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
-RANLIB=                :
 
 TZCOBJS=       zic.o
 TZDOBJS=       zdump.o localtime.o asctime.o strftime.o
@@ -543,7 +580,7 @@
 NDATA=         factory
 TDATA_TO_CHECK=        $(YDATA) $(NDATA) backward
 TDATA=         $(YDATA) $(NDATA) $(BACKWARD)
-ZONETABLES=    zone1970.tab zone.tab
+ZONETABLES=    zone.tab zone1970.tab zonenow.tab
 TABDATA=       iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
 LEAP_DEPS=     leapseconds.awk leap-seconds.list
 TZDATA_ZI_DEPS=        ziguard.awk zishrink.awk version $(TDATA) \
@@ -551,7 +588,7 @@
 DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST)
 DATA=          $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
                        leapseconds $(ZONETABLES)
-AWK_SCRIPTS=   checklinks.awk checktab.awk leapseconds.awk \
+AWK_SCRIPTS=   checklinks.awk checknow.awk checktab.awk leapseconds.awk \
                        ziguard.awk zishrink.awk
 MISC=          $(AWK_SCRIPTS)
 TZS_YEAR=      2050
@@ -572,7 +609,7 @@
                calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
                africa antarctica asctime.c asia australasia \
                backward backzone \
-               checklinks.awk checktab.awk \
+               checklinks.awk checknow.awk checktab.awk \
                date.1 date.c difftime.c \
                etcetera europe factory iso3166.tab \
                leap-seconds.list leapseconds.awk localtime.c \
@@ -582,12 +619,7 @@
                tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
                workman.sh zdump.8 zdump.c zic.8 zic.c \
                ziguard.awk zishrink.awk \
-               zone.tab zone1970.tab
-
-# And for the benefit of csh users on systems that assume the user
-# shell should be used to handle commands in Makefiles. . .
-
-SHELL=         /bin/sh
+               zone.tab zone1970.tab zonenow.tab
 
 all:           tzselect zic zdump libtz.a $(TABDATA) \
                  vanguard.zi main.zi rearguard.zi
@@ -657,6 +689,16 @@
                    $(DATAFORM).zi >$@.out
                mv $@.out $@
 
+tzdir.h:
+               printf '%s\n' >$@.out \
+                 '#ifndef TZDEFAULT' \
+                 '# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \
+                 '#endif' \
+                 '#ifndef TZDIR' \
+                 '# define TZDIR "$(TZDIR)" /* TZif directory */' \
+                 '#endif'
+               mv $@.out $@
+
 version.h:     version
                VERSION=`cat version` && printf '%s\n' \
                  'static char const PKGVERSION[]="($(PACKAGE)) ";' \
@@ -763,7 +805,7 @@
 
 libtz.a:       $(LIBOBJS)
                rm -f $@
-               $(AR) -rc $@ $(LIBOBJS)
+               $(AR) $(ARFLAGS) $@ $(LIBOBJS)
                $(RANLIB) $@
 
 date:          $(DATEOBJS)
@@ -771,26 +813,32 @@
 
 tzselect:      tzselect.ksh version
                VERSION=`cat version` && sed \
-                       -e 's|#!/bin/bash|#!$(KSHELL)|g' \
-                       -e 's|AWK=[^}]*|AWK='\''$(AWK)'\''|g' \
-                       -e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \
-                       -e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \
-                       -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
-                       -e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \
-                       <$@.ksh >$@.out
+                 -e "s'#!/bin/bash'#!"'$(KSHELL)'\' \
+                 -e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \
+                 -e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \
+                 -e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \
+                 -e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \
+                 -e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \
+                 <$@.ksh >$@.out
                chmod +x $@.out
                mv $@.out $@
 
 check: check_back check_mild
 check_mild:    check_character_set check_white_space check_links \
-                 check_name_lengths check_slashed_abbrs check_sorted \
+                 check_name_lengths check_now \
+                 check_slashed_abbrs check_sorted \
                  check_tables check_web check_ziguard check_zishrink check_tzs
 
+# True if UTF8_LOCALE does not work;
+# otherwise, false but with LC_ALL set to $(UTF8_LOCALE).
+UTF8_LOCALE_MISSING = \
+  { test ! '$(UTF8_LOCALE)' \
+    || ! printf 'A\304\200B\n' \
+         | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \
+    || { LC_ALL='$(UTF8_LOCALE)'; export LC_ALL; false; }; }
+
 check_character_set: $(ENCHILADA)
-       test ! '$(UTF8_LOCALE)' || \
-       ! printf 'A\304\200B\n' | \
-         LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \
-               LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \
+       $(UTF8_LOCALE_MISSING) || { \
                sharp='#' && \
                ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
                        $(MISC) $(SOURCES) $(WEB_PAGES) \
@@ -805,12 +853,12 @@
        touch $@
 
 check_white_space: $(ENCHILADA)
+       $(UTF8_LOCALE_MISSING) || { \
                patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
-               ! grep -En "$$pat" \
-                       $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
-               ! grep -n '[$s]$$' \
-                       $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
-               touch $@
+               ! grep -En "$$pat|[$s]\$$" \
+                       $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list); \
+       }
+       touch $@
 
 PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+
 FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15}
@@ -851,7 +899,29 @@
                  -f checklinks.awk tzdata.zi
                touch $@
 
-check_tables:  checktab.awk $(YDATA) backward $(ZONETABLES)
+# Check timestamps from now through 28 years from now, to make sure
+# that zonenow.tab contains all sequences of planned timestamps,
+# without any duplicate sequences.  In theory this might require
+# 2800 years but that would take a long time to check.
+CHECK_NOW_TIMESTAMP = `./date +%s`
+CHECK_NOW_FUTURE_YEARS = 28
+CHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) '*' 366 '*' 24 '*' 60 '*' 60
+check_now:     checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab
+               rm -fr $@.dir
+               mkdir $@.dir
+               ./zic -d $@.dir tzdata.zi
+               now=$(CHECK_NOW_TIMESTAMP) && \
+                 future=`expr $(CHECK_NOW_FUTURE_SECS) + $$now` && \
+                 ./zdump -i -t $$now,$$future \
+                    $$(find $$PWD/$@.dir/????*/ -type f) \
+                    >$@.dir/zdump.tab
+               $(AWK) \
+                 -v zdump_table=$@.dir/zdump.tab \
+                 -f checknow.awk zonenow.tab
+               rm -fr $@.dir
+               touch $@
+
+check_tables:  checktab.awk $(YDATA) backward zone.tab zone1970.tab
                for tab in $(ZONETABLES); do \
                  test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
                  $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
@@ -911,10 +981,10 @@
                touch $@
 
 clean_misc:
-               rm -fr check_*.dir
+               rm -fr check_*.dir typecheck_*.dir
                rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
                  check_* core typecheck_* \
-                 date tzselect version.h zdump zic libtz.a
+                 date tzdir.h tzselect version.h zdump zic libtz.a
 clean:         clean_misc
                rm -fr *.dir tzdb-*/
                rm -f *.zi $(TZS_NEW)
@@ -952,12 +1022,18 @@
 # plus N if GNU ls and touch are available.
 SET_TIMESTAMP_N = sh -c '\
   n=$$0 dest=$$1; shift; \
-  touch -cmr `ls -t "$$@" | sed 1q` "$$dest" && \
+  <"$$dest" && \
   if test $$n != 0 && \
-     lsout=`ls -n --time-style="+%s" "$$dest" 2>/dev/null`; then \
+     lsout=`ls -nt --time-style="+%s" "$$@" 2>/dev/null`; then \
     set x $$lsout && \
-    touch -cmd @`expr $$7 + $$n` "$$dest"; \
-  else :; fi'
+    timestamp=`expr $$7 + $$n` && \
+    echo "+ touch -md @$$timestamp $$dest" && \
+    touch -md @$$timestamp "$$dest"; \
+  else \
+    newest=`ls -t "$$@" | sed 1q` && \
+    echo "+ touch -mr $$newest $$dest" && \
+    touch -mr "$$newest" "$$dest"; \
+  fi'
 # If DEST depends on A B C ... in this Makefile, callers should use
 # $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
 # downstream 'make' that considers equal timestamps to be out of date.
@@ -982,8 +1058,12 @@
                  rm -f test.out && \
                  for file in $$files; do \
                    if git diff --quiet $$file; then \
-                     time=`git log -1 --format='tformat:%ct' $$file` && \
-                     touch -cmd @$$time $$file; \
+                     time=`TZ=UTC0 git log -1 \
+                       --format='tformat:%cd' \
+                       --date='format:%Y-%m-%dT%H:%M:%SZ' \
+                       $$file` && \
+                     echo "+ touch -md $$time $$file" && \
+                     touch -md $$time $$file; \
                    else \
                      echo >&2 "$$file: warning: does not match repository"; \
                    fi || exit; \
@@ -1008,7 +1088,8 @@
                rm -fr public.dir
                mkdir public.dir
                ln $(VERSION_DEPS) public.dir
-               cd public.dir && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL
+               cd public.dir \
+                 && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL
                for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \
                    public.dir/vanguard.zi public.dir/main.zi \
                    public.dir/rearguard.zi; \
@@ -1139,7 +1220,7 @@
                sed '1s/$$/-rearguard/' <version >$@.dir/version
                : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
                $(CREATE_EMPTY) $@.dir/pacificnew
-               touch -cmr version $@.dir/version
+               touch -mr version $@.dir/version
                LC_ALL=C && export LC_ALL && \
                  (cd $@.dir && \
                   tar $(TARFLAGS) -cf - \
@@ -1163,7 +1244,7 @@
                  `test $(DATAFORM) = vanguard || echo pacificnew`
                (grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \
                  >$@.dir/etcetera
-               touch -cmr tzdata.zi $@.dir/etcetera
+               touch -mr tzdata.zi $@.dir/etcetera
                sed -n \
                  -e '/^# *version  *\(.*\)/h' \
                  -e '/^# *ddeps  */H' \
@@ -1174,7 +1255,7 @@
                  -e 's/ /-/g' \
                  -e 'p' \
                  <tzdata.zi >$@.dir/version
-               touch -cmr version $@.dir/version
+               touch -mr version $@.dir/version
                links= && \
                  for file in $(TZDATA_DIST); do \
                    test -f $@.dir/$$file || links="$$links $$file"; \
@@ -1226,10 +1307,10 @@
 asctime.o:     private.h tzfile.h
 date.o:                private.h
 difftime.o:    private.h
-localtime.o:   private.h tzfile.h
+localtime.o:   private.h tzfile.h tzdir.h
 strftime.o:    private.h tzfile.h
 zdump.o:       version.h
-zic.o:         private.h tzfile.h version.h
+zic.o:         private.h tzfile.h tzdir.h version.h
 
 .PHONY: ALL INSTALL all
 .PHONY: check check_mild check_time_t_alternatives
diff -Nru tzdata-2023c/NEWS tzdata-2023d/NEWS
--- tzdata-2023c/NEWS   2023-03-28 21:43:45.000000000 +0200
+++ tzdata-2023d/NEWS   2023-12-21 21:03:45.000000000 +0100
@@ -1,5 +1,109 @@
 News for the tz database
 
+Release 2023d - 2023-12-21 20:02:24 -0800
+
+  Briefly:
+    Ittoqqortoormiit, Greenland changes time zones on 2024-03-31.
+    Vostok, Antarctica changed time zones on 2023-12-18.
+    Casey, Antarctica changed time zones five times since 2020.
+    Code and data fixes for Palestine timestamps starting in 2072.
+    A new data file zonenow.tab for timestamps starting now.
+
+  Changes to future timestamps
+
+    Ittoqqortoormiit, Greenland (America/Scoresbysund) joins most of
+    the rest of Greenland's timekeeping practice on 2024-03-31, by
+    changing its time zone from -01/+00 to -02/-01 at the same moment
+    as the spring-forward transition.  Its clocks will therefore not
+    spring forward as previously scheduled.  The time zone change
+    reverts to its common practice before 1981.
+
+    Fix predictions for DST transitions in Palestine in 2072-2075,
+    correcting a typo introduced in 2023a.
+
+  Changes to past and future timestamps
+
+    Vostok, Antarctica changed to +05 on 2023-12-18.  It had been at
+    +07 (not +06) for years.  (Thanks to Zakhary V. Akulov.)
+
+    Change data for Casey, Antarctica to agree with timeanddate.com,
+    by adding five time zone changes since 2020.  Casey is now at +08
+    instead of +11.
+
+  Changes to past tm_isdst flags
+
+    Much of Greenland, represented by America/Nuuk, changed its
+    standard time from -03 to -02 on 2023-03-25, not on 2023-10-28.
+    This does not affect UTC offsets, only the tm_isdst flag.
+    (Thanks to Thomas M. Steenholdt.)
+
+  New data file
+
+    A new data file zonenow.tab helps configure applications that use
+    timestamps dated from now on.  This simplifies configuration,
+    since users choose from a smaller Zone set.  The file's format is
+    experimental and subject to change.
+
+  Changes to code
+
+    localtime.c no longer mishandles TZif files that contain a single
+    transition into a DST regime.  Previously, it incorrectly assumed
+    DST was in effect before the transition too.  (Thanks to Alois
+    Treindl for debugging help.)
+
+    localtime.c's timeoff no longer collides with OpenBSD 7.4.
+
+    The C code now uses _Generic only if __STDC_VERSION__ says the
+    compiler is C11 or later.
+
+    tzselect now optionally reads zonenow.tab, to simplify when
+    configuring only for timestamps dated from now on.
+
+    tzselect no longer creates temporary files.
+
+    tzselect no longer mishandles the following:
+
+      Spaces and most other special characters in BUGEMAIL, PACKAGE,
+      TZDIR, and VERSION.
+
+      TZ strings when using mawk 1.4.3, which mishandles regular
+      expressions of the form /X{2,}/.
+
+      ISO 6709 coordinates when using an awk that lacks the GNU
+      extension of newlines in -v option-arguments.
+
+      Non UTF-8 locales when using an iconv command that lacks the GNU
+      //TRANSLIT extension.
+
+    zic no longer mishandles data for Palestine after the year 2075.
+    Previously, it incorrectly omitted post-2075 transitions that are
+    predicted for just before and just after Ramadan.  (Thanks to Ken
+    Murchison for debugging help.)
+
+    zic now works again on Linux 2.6.16 and 2.6.17 (2006).
+    (Problem reported by Rune Torgersen.)
+
+  Changes to build procedure
+
+    The Makefile is now more compatible with POSIX:
+     * It no longer defines AR, CC, CFLAGS, LDFLAGS, and SHELL.
+     * It no longer uses its own 'cc' in place of CC.
+     * It now uses ARFLAGS, with default specified by POSIX.
+     * It does not use LFLAGS incompatibly with POSIX.
+     * It uses the special .POSIX target.
+     * It quotes special characters more carefully.
+     * It no longer mishandles builds in an ISO 8859 locale.
+    Due to the CC changes, TZDIR is now #defined in a file tzfile.h
+    built by 'make', not in a $(CC) -D option.  Also, TZDEFAULT is
+    now treated like TZDIR as they have similar roles.
+
+  Changes to commentary
+
+     Limitations and hazards of the optional support for obsolescent
+     C89 platforms are documented better, along with a tentative
+     schedule for removing this support.
+
+
 Release 2023c - 2023-03-28 12:42:14 -0700
 
   Changes to past and future timestamps
@@ -76,11 +180,14 @@
     platform dependent and abbreviations were silently truncated to
     16 bytes even when the limit was greater than 16.
 
-    The code by default is now designed for C99 or later.  To build in
-    a C89 environment, compile with -DPORT_TO_C89.  To support C89
-    callers of the tzcode library, compile with -DSUPPORT_C89.  The
-    two new macros are transitional aids planned to be removed in a
-    future version, when C99 or later will be required.
+    The code by default is now designed for C99 or later.  To build on
+    a mostly-C89 platform, compile with -DPORT_TO_C89; this should
+    work on C89 platforms that also support C99 'long long' and
+    perhaps a few other extensions to C89.  To support C89 callers of
+    tzcode's library, compile with -DSUPPORT_C89; however, this could
+    trigger latent bugs in C99-or-later callers.  The two new macros
+    are transitional aids planned to be removed in a future version
+    (say, in 2029), when C99 or later will be required.
 
     The code now builds again on pre-C99 platforms, if you compile
     with -DPORT_TO_C89.  This fixes a bug introduced in 2022f.
@@ -723,6 +830,8 @@
     them, set the EXPIRES_LINE Makefile variable.  If a TZif file uses
     this new feature it is marked with a new TZif version number 4,
     a format intended to be documented in a successor to RFC 8536.
+    The old-format "#expires" comments are now treated solely as
+    comments and have no effect on the TZif files.
 
     zic -L LEAPFILE -r @LO no longer generates an invalid TZif file
     that omits leap second information for the range LO..B when LO
@@ -4302,7 +4411,7 @@
   now uses t...@iana.org rather than the old elsie address.
 
   zic -v now complains about abbreviations that are less than 3
-  or more than 6 characters, as per Posix.  Formerly, it checked
+  or more than 6 characters, as per POSIX.  Formerly, it checked
   for abbreviations that were more than 3.
 
   'make public' no longer puts its temporary directory under /tmp,
@@ -4467,8 +4576,8 @@
   In particular, the typos in comments in the data (2011-11-17 should have
   been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that
   Tim Parenti noted) have been fixed, and the change for Ukraine has been
-  made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to
-  Tim Parenti, and also Denys Gavrysh)
+  made in all 4 Ukrainian zones, rather than just Europe/Kiev
+  (again, thanks to Tim Parenti, and also Denys Gavrysh).
 
   In addition, I added Europe/Tiraspol to zone.tab.
 
diff -Nru tzdata-2023c/northamerica tzdata-2023d/northamerica
--- tzdata-2023c/northamerica   2023-03-15 20:47:43.000000000 +0100
+++ tzdata-2023d/northamerica   2023-11-19 14:29:23.000000000 +0100
@@ -1453,7 +1453,7 @@
 Rule   StJohns 2007    2011    -       Mar     Sun>=8  0:01    1:00    D
 Rule   StJohns 2007    2010    -       Nov     Sun>=1  0:01    0       S
 #
-# St John's has an apostrophe, but Posix file names can't have apostrophes.
+# St John's has an apostrophe, but POSIX file names can't have apostrophes.
 # Zone NAME            STDOFF  RULES   FORMAT  [UNTIL]
 Zone America/St_Johns  -3:30:52 -      LMT     1884
                        -3:30:52 StJohns N%sT   1918
diff -Nru tzdata-2023c/README tzdata-2023d/README
--- tzdata-2023c/README 2021-12-14 17:53:34.000000000 +0100
+++ tzdata-2023d/README 2023-11-19 14:29:23.000000000 +0100
@@ -11,14 +11,17 @@
 and daylight-saving rules.
 
 See <https://www.iana.org/time-zones/repository/tz-link.html> or the
-file tz-link.html for how to acquire the code and data.  Once acquired,
-read the comments in the file 'Makefile' and make any changes needed
-to make things right for your system, especially if you are using some
-platform other than GNU/Linux.  Then run the following commands,
-substituting your desired installation directory for "$HOME/tzdir":
+file tz-link.html for how to acquire the code and data.
 
-       make TOPDIR=$HOME/tzdir install
-       $HOME/tzdir/usr/bin/zdump -v America/Los_Angeles
+Once acquired, read the leading comments in the file "Makefile"
+and make any changes needed to make things right for your system,
+especially when using a platform other than current GNU/Linux.
+
+Then run the following commands, substituting your desired
+installation directory for "$HOME/tzdir":
+
+       make TOPDIR="$HOME/tzdir" install
+       "$HOME/tzdir/usr/bin/zdump" -v America/Los_Angeles
 
 See the file tz-how-to.html for examples of how to read the data files.
 
diff -Nru tzdata-2023c/southamerica tzdata-2023d/southamerica
--- tzdata-2023c/southamerica   2023-03-08 05:00:17.000000000 +0100
+++ tzdata-2023d/southamerica   2023-07-27 09:57:30.000000000 +0200
@@ -1697,6 +1697,12 @@
 # From Carlos Raúl Perasso (2014-02-28):
 # Decree 1264 can be found at:
 # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf
+#
+# From Paul Eggert (2023-07-26):
+# Transition dates are now set by Law No. 7115, not by presidential decree.
+# 
https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/
+# From Carlos Raúl Perasso (2023-07-27):
+# http://silpy.congreso.gov.py/descarga/ley-144138
 Rule   Para    2013    max     -       Mar     Sun>=22 0:00    0       -
 
 # Zone NAME            STDOFF  RULES   FORMAT  [UNTIL]
diff -Nru tzdata-2023c/version tzdata-2023d/version
--- tzdata-2023c/version        2023-03-28 21:43:46.000000000 +0200
+++ tzdata-2023d/version        2023-12-21 21:03:46.000000000 +0100
@@ -1 +1 @@
-2023c
+2023d
diff -Nru tzdata-2023c/zone1970.tab tzdata-2023d/zone1970.tab
--- tzdata-2023c/zone1970.tab   2023-01-23 21:46:24.000000000 +0100
+++ tzdata-2023d/zone1970.tab   2023-12-19 11:58:19.000000000 +0100
@@ -37,7 +37,7 @@
 #country-
 #codes coordinates     TZ      comments
 AD     +4230+00131     Europe/Andorra
-AE,OM,RE,SC,TF +2518+05518     Asia/Dubai      Crozet, Scattered Is
+AE,OM,RE,SC,TF +2518+05518     Asia/Dubai      Crozet
 AF     +3431+06912     Asia/Kabul
 AL     +4120+01950     Europe/Tirane
 AM     +4011+04430     Asia/Yerevan
@@ -47,12 +47,13 @@
 AQ     -6448-06406     Antarctica/Palmer       Palmer
 AQ     -6734-06808     Antarctica/Rothera      Rothera
 AQ     -720041+0023206 Antarctica/Troll        Troll
+AQ     -7824+10654     Antarctica/Vostok       Vostok
 AR     -3436-05827     America/Argentina/Buenos_Aires  Buenos Aires (BA, CF)
 AR     -3124-06411     America/Argentina/Cordoba       most areas: CB, CC, CN, 
ER, FM, MN, SE, SF
 AR     -2447-06525     America/Argentina/Salta Salta (SA, LP, NQ, RN)
 AR     -2411-06518     America/Argentina/Jujuy Jujuy (JY)
 AR     -2649-06513     America/Argentina/Tucuman       Tucumán (TM)
-AR     -2828-06547     America/Argentina/Catamarca     Catamarca (CT); Chubut 
(CH)
+AR     -2828-06547     America/Argentina/Catamarca     Catamarca (CT), Chubut 
(CH)
 AR     -2926-06651     America/Argentina/La_Rioja      La Rioja (LR)
 AR     -3132-06831     America/Argentina/San_Juan      San Juan (SJ)
 AR     -3253-06849     America/Argentina/Mendoza       Mendoza (MZ)
@@ -81,7 +82,7 @@
 BM     +3217-06446     Atlantic/Bermuda
 BO     -1630-06809     America/La_Paz
 BR     -0351-03225     America/Noronha Atlantic islands
-BR     -0127-04829     America/Belem   Pará (east); Amapá
+BR     -0127-04829     America/Belem   Pará (east), Amapá
 BR     -0343-03830     America/Fortaleza       Brazil (northeast: MA, PI, CE, 
RN, PB)
 BR     -0803-03454     America/Recife  Pernambuco
 BR     -0712-04812     America/Araguaina       Tocantins
@@ -99,19 +100,19 @@
 BT     +2728+08939     Asia/Thimphu
 BY     +5354+02734     Europe/Minsk
 BZ     +1730-08812     America/Belize
-CA     +4734-05243     America/St_Johns        Newfoundland; Labrador 
(southeast)
-CA     +4439-06336     America/Halifax Atlantic - NS (most areas); PE
+CA     +4734-05243     America/St_Johns        Newfoundland, Labrador (SE)
+CA     +4439-06336     America/Halifax Atlantic - NS (most areas), PE
 CA     +4612-05957     America/Glace_Bay       Atlantic - NS (Cape Breton)
 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,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        Central - ON (west), Manitoba
 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)
 CA     +5017-10750     America/Swift_Current   CST - SK (midwest)
-CA     +5333-11328     America/Edmonton        Mountain - AB; BC (E); NT (E); 
SK (W)
+CA     +5333-11328     America/Edmonton        Mountain - AB, BC(E), NT(E), 
SK(W)
 CA     +690650-1050310 America/Cambridge_Bay   Mountain - NU (west)
 CA     +682059-1334300 America/Inuvik  Mountain - NT (west)
 CA     +5546-12014     America/Dawson_Creek    MST - BC (Dawson Cr, Ft St John)
@@ -126,7 +127,7 @@
 CL     -5309-07055     America/Punta_Arenas    Region of Magallanes
 CL     -2709-10926     Pacific/Easter  Easter Island
 CN     +3114+12128     Asia/Shanghai   Beijing Time
-CN,AQ  +4348+08735     Asia/Urumqi     Xinjiang Time, Vostok
+CN     +4348+08735     Asia/Urumqi     Xinjiang Time
 CO     +0436-07405     America/Bogota
 CR     +0956-08405     America/Costa_Rica
 CU     +2308-08222     America/Havana
@@ -171,8 +172,8 @@
 HU     +4730+01905     Europe/Budapest
 ID     -0610+10648     Asia/Jakarta    Java, Sumatra
 ID     -0002+10920     Asia/Pontianak  Borneo (west, central)
-ID     -0507+11924     Asia/Makassar   Borneo (east, south); Sulawesi/Celebes, 
Bali, Nusa Tengarra; Timor (west)
-ID     -0232+14042     Asia/Jayapura   New Guinea (West Papua / Irian Jaya); 
Malukus/Moluccas
+ID     -0507+11924     Asia/Makassar   Borneo (east, south), Sulawesi/Celebes, 
Bali, Nusa Tengarra, Timor (west)
+ID     -0232+14042     Asia/Jayapura   New Guinea (West Papua / Irian Jaya), 
Malukus/Moluccas
 IE     +5320-00615     Europe/Dublin
 IL     +314650+0351326 Asia/Jerusalem
 IN     +2232+08822     Asia/Kolkata
@@ -251,7 +252,7 @@
 PL     +5215+02100     Europe/Warsaw
 PM     +4703-05620     America/Miquelon
 PN     -2504-13005     Pacific/Pitcairn
-PR,AG,CA,AI,AW,BL,BQ,CW,DM,GD,GP,KN,LC,MF,MS,SX,TT,VC,VG,VI    +182806-0660622 
America/Puerto_Rico     AST
+PR,AG,CA,AI,AW,BL,BQ,CW,DM,GD,GP,KN,LC,MF,MS,SX,TT,VC,VG,VI    +182806-0660622 
America/Puerto_Rico     AST - QC (Lower North Shore)
 PS     +3130+03428     Asia/Gaza       Gaza Strip
 PS     +313200+0350542 Asia/Hebron     West Bank
 PT     +3843-00908     Europe/Lisbon   Portugal (mainland)
@@ -287,7 +288,7 @@
 RU     +643337+1431336 Asia/Ust-Nera   MSK+07 - Oymyakonsky
 RU     +5934+15048     Asia/Magadan    MSK+08 - Magadan
 RU     +4658+14242     Asia/Sakhalin   MSK+08 - Sakhalin Island
-RU     +6728+15343     Asia/Srednekolymsk      MSK+08 - Sakha (E); N Kuril Is
+RU     +6728+15343     Asia/Srednekolymsk      MSK+08 - Sakha (E), N Kuril Is
 RU     +5301+15839     Asia/Kamchatka  MSK+09 - Kamchatka
 RU     +6445+17729     Asia/Anadyr     MSK+09 - Bering Sea
 SA,AQ,KW,YE    +2438+04643     Asia/Riyadh     Syowa
@@ -329,7 +330,7 @@
 US     +465042-1012439 America/North_Dakota/New_Salem  Central - ND (Morton 
rural)
 US     +471551-1014640 America/North_Dakota/Beulah     Central - ND (Mercer)
 US     +394421-1045903 America/Denver  Mountain (most areas)
-US     +433649-1161209 America/Boise   Mountain - ID (south); OR (east)
+US     +433649-1161209 America/Boise   Mountain - ID (south), OR (east)
 US,CA  +332654-1120424 America/Phoenix MST - AZ (most areas), Creston BC
 US     +340308-1181434 America/Los_Angeles     Pacific
 US     +611305-1495401 America/Anchorage       Alaska (most areas)
diff -Nru tzdata-2023c/zonenow.tab tzdata-2023d/zonenow.tab
--- tzdata-2023c/zonenow.tab    1970-01-01 01:00:00.000000000 +0100
+++ tzdata-2023d/zonenow.tab    2023-12-21 16:52:09.000000000 +0100
@@ -0,0 +1,301 @@
+# tzdb timezone descriptions, for users who do not care about old timestamps
+#
+# This file is in the public domain.
+#
+# From Paul Eggert (2023-12-18):
+# This file contains a table where each row stands for a timezone
+# where civil timestamps are predicted to agree from now on.
+# This file is like zone1970.tab (see zone1970.tab's coments),
+# but with the following changes:
+#
+# 1.  Each timezone corresponds to a set of clocks that are planned
+#     to agree from now on.  This is a larger set of clocks than in
+#     zone1970.tab, where each timezone's clocks must agree from 1970 on.
+# 2.  The first column is irrelevant and ignored.
+# 3.  The table is sorted in a different way:
+#     first by standard time UTC offset;
+#     then, if DST is used, by daylight saving UTC offset;
+#     then by time zone abbreviation.
+# 4.  Every timezone has a nonempty comments column, with wording
+#     distinguishing the timezone only from other timezones with the
+#     same UTC offset at some point during the year.
+#
+# The format of this table is experimental, and may change in future versions.
+#
+# This table is intended as an aid for users, to help them select timezones
+# appropriate for their practical needs.  It is not intended to take or
+# endorse any position on legal or territorial claims.
+#
+#XX    coordinates     TZ      comments
+#
+# -11 - SST
+XX     -1416-17042     Pacific/Pago_Pago       Midway; Samoa ("SST")
+#
+# -11
+XX     -1901-16955     Pacific/Niue    Niue
+#
+# -10 - HST
+XX     +211825-1575130 Pacific/Honolulu        Hawaii ("HST")
+#
+# -10
+XX     -1732-14934     Pacific/Tahiti  Tahiti; Cook Islands
+#
+# -10/-09 - HST / HDT (North America DST)
+XX     +515248-1763929 America/Adak    western Aleutians in Alaska ("HST/HDT")
+#
+# -09:30
+XX     -0900-13930     Pacific/Marquesas       Marquesas
+#
+# -09
+XX     -2308-13457     Pacific/Gambier Gambier
+#
+# -09/-08 - AKST/AKDT (North America DST)
+XX     +611305-1495401 America/Anchorage       most of Alaska ("AKST/AKDT")
+#
+# -08
+XX     -2504-13005     Pacific/Pitcairn        Pitcairn
+#
+# -08/-07 - PST/PDT (North America DST)
+XX     +340308-1181434 America/Los_Angeles     Pacific ("PST/PDT") - US & 
Canada; Mexico near US border
+#
+# -07 - MST
+XX     +332654-1120424 America/Phoenix Mountain Standard ("MST") - Arizona; 
western Mexico; Yukon
+#
+# -07/-06 - MST/MDT (North America DST)
+XX     +394421-1045903 America/Denver  Mountain ("MST/MDT") - US & Canada; 
Mexico near US border
+#
+# -06
+XX     -0054-08936     Pacific/Galapagos       Galápagos
+#
+# -06 - CST
+XX     +1924-09909     America/Mexico_City     Central Standard ("CST") - 
Saskatchewan; central Mexico; Central America
+#
+# -06/-05 (Chile DST)
+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
+#
+# -05
+XX     -1203-07703     America/Lima    eastern South America
+#
+# -05 - EST
+XX     +175805-0764736 America/Jamaica Eastern Standard ("EST") - Caymans; 
Jamaica; eastern Mexico; Panama
+#
+# -05/-04 - CST/CDT (Cuba DST)
+XX     +2308-08222     America/Havana  Cuba
+#
+# -05/-04 - EST/EDT (North America DST)
+XX     +404251-0740023 America/New_York        Eastern ("EST/EDT") - US & 
Canada
+#
+# -04
+XX     +1030-06656     America/Caracas western South America
+#
+# -04 - AST
+XX     +1828-06954     America/Santo_Domingo   Atlantic Standard ("AST") - 
eastern Caribbean
+#
+# -04/-03 (Chile DST)
+XX     -3327-07040     America/Santiago        most of Chile
+#
+# -04/-03 (Paraguay DST)
+XX     -2516-05740     America/Asuncion        Paraguay
+#
+# -04/-03 - AST/ADT (North America DST)
+XX     +4439-06336     America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda
+#
+# -03:30/-02:30 - NST/NDT (North America DST)
+XX     +4734-05243     America/St_Johns        Newfoundland ("NST/NDT")
+#
+# -03
+XX     -2332-04637     America/Sao_Paulo       eastern South America
+#
+# -03/-02 (North America DST)
+XX     +4703-05620     America/Miquelon        St Pierre & Miquelon
+#
+# -02
+XX     -0351-03225     America/Noronha Fernando de Noronha; South Georgia
+#
+# -02/-01 (EU DST)
+XX     +6411-05144     America/Nuuk    most of Greenland
+#
+# -01
+XX     +1455-02331     Atlantic/Cape_Verde     Cape Verde
+#
+# -01/+00 (EU DST)
+XX     +3744-02540     Atlantic/Azores Azores
+# -01/+00 (EU DST) until 2024-03-31; then -02/-01 (EU DST)
+XX     +7029-02158     America/Scoresbysund    Ittoqqortoormiit
+#
+# +00 - GMT
+XX     +0519-00402     Africa/Abidjan  far western Africa; Iceland ("GMT")
+#
+# +00/+01 - GMT/BST (EU DST)
+XX     +513030-0000731 Europe/London   United Kingdom ("GMT/BST")
+#
+# +00/+01 - WET/WEST (EU DST)
+XX     +3843-00908     Europe/Lisbon   western Europe ("WET/WEST")
+#
+# +00/+02 - Troll DST
+XX     -720041+0023206 Antarctica/Troll        Troll Station in Antarctica
+#
+# +01 - CET
+XX     +3647+00303     Africa/Algiers  Algeria, Tunisia ("CET")
+#
+# +01 - WAT
+XX     +0627+00324     Africa/Lagos    western Africa ("WAT")
+#
+# +01/+00 - IST/GMT (EU DST in reverse)
+XX     +5320-00615     Europe/Dublin   Ireland ("IST/GMT")
+#
+# +01/+00 - (Morocco DST)
+XX     +3339-00735     Africa/Casablanca       Morocco
+#
+# +01/+02 - CET/CEST (EU DST)
+XX     +4852+00220     Europe/Paris    central Europe ("CET/CEST")
+#
+# +02 - CAT
+XX     -2558+03235     Africa/Maputo   central Africa ("CAT")
+#
+# +02 - EET
+XX     +3254+01311     Africa/Tripoli  Libya; Kaliningrad ("EET")
+#
+# +02 - SAST
+XX     -2615+02800     Africa/Johannesburg     southern Africa ("SAST")
+#
+# +02/+03 - EET/EEST (EU DST)
+XX     +3758+02343     Europe/Athens   eastern Europe ("EET/EEST")
+#
+# +02/+03 - EET/EEST (Egypt DST)
+XX     +3003+03115     Africa/Cairo    Egypt
+#
+# +02/+03 - EET/EEST (Lebanon DST)
+XX     +3353+03530     Asia/Beirut     Lebanon
+#
+# +02/+03 - EET/EEST (Moldova DST)
+XX     +4700+02850     Europe/Chisinau Moldova
+#
+# +02/+03 - EET/EEST (Palestine DST)
+XX     +3130+03428     Asia/Gaza       Palestine
+#
+# +02/+03 - IST/IDT (Israel DST)
+XX     +314650+0351326 Asia/Jerusalem  Israel
+#
+# +03
+XX     +4101+02858     Europe/Istanbul Near East; Belarus
+#
+# +03 - EAT
+XX     -0117+03649     Africa/Nairobi  eastern Africa ("EAT")
+#
+# +03 - MSK
+XX     +554521+0373704 Europe/Moscow   Moscow ("MSK")
+#
+# +03:30
+XX     +3540+05126     Asia/Tehran     Iran
+#
+# +04
+XX     +2518+05518     Asia/Dubai      Russia; Caucasus; Persian Gulf; 
Seychelles; Réunion
+#
+# +04:30
+XX     +3431+06912     Asia/Kabul      Afghanistan
+#
+# +05
+XX     +4120+06918     Asia/Tashkent   Russia; Tajikistan; Turkmenistan; 
Uzbekistan; Maldives
+#
+# +05 - PKT
+XX     +2452+06703     Asia/Karachi    Pakistan ("PKT")
+#
+# +05:30
+XX     +0656+07951     Asia/Colombo    Sri Lanka
+#
+# +05:30 - IST
+XX     +2232+08822     Asia/Kolkata    India ("IST")
+#
+# +05:45
+XX     +2743+08519     Asia/Kathmandu  Nepal
+#
+# +06
+XX     +2343+09025     Asia/Dhaka      Russia; Kyrgyzstan; Bhutan; Bangladesh; 
Chagos
+#
+# +06:30
+XX     +1647+09610     Asia/Yangon     Myanmar; Cocos
+#
+# +07
+XX     +1345+10031     Asia/Bangkok    Russia; Indochina; Christmas Island
+#
+# +07 - WIB
+XX     -0610+10648     Asia/Jakarta    Indonesia ("WIB")
+#
+# +08
+XX     +0117+10351     Asia/Singapore  Russia; Brunei; Malaysia; Singapore
+#
+# +08 - AWST
+XX     -3157+11551     Australia/Perth Western Australia ("AWST")
+#
+# +08 - CST
+XX     +3114+12128     Asia/Shanghai   China ("CST")
+#
+# +08 - HKT
+XX     +2217+11409     Asia/Hong_Kong  Hong Kong ("HKT")
+#
+# +08 - PHT
+XX     +1435+12100     Asia/Manila     Philippines ("PHT")
+#
+# +08 - WITA
+XX     -0507+11924     Asia/Makassar   Indonesia ("WITA")
+#
+# +08:45
+XX     -3143+12852     Australia/Eucla Eucla
+#
+# +09
+XX     +5203+11328     Asia/Chita      Russia; Palau; East Timor
+#
+# +09 - JST
+XX     +353916+1394441 Asia/Tokyo      Japan ("JST")
+#
+# +09 - KST
+XX     +3733+12658     Asia/Seoul      Korea ("KST")
+#
+# +09 - WIT
+XX     -0232+14042     Asia/Jayapura   Indonesia ("WIT")
+#
+# +09:30 - ACST
+XX     -1228+13050     Australia/Darwin        Northern Territory ("ACST")
+#
+# +09:30/+10:30 - ACST/ACDT (Australia DST)
+XX     -3455+13835     Australia/Adelaide      South Australia ("ACST/ACDT")
+#
+# +10
+XX     +4310+13156     Asia/Vladivostok        Russia; Yap; Chuuk; Papua New 
Guinea; Dumont d'Urville
+#
+# +10 - AEST
+XX     -2728+15302     Australia/Brisbane      Queensland ("AEST")
+#
+# +10 - ChST
+XX     +1328+14445     Pacific/Guam    Mariana Islands ("ChST")
+#
+# +10/+11 - AEST/AEDT (Australia DST)
+XX     -3352+15113     Australia/Sydney        southeast Australia 
("AEST/AEDT")
+#
+# +10:30/+11
+XX     -3133+15905     Australia/Lord_Howe     Lord Howe Island
+#
+# +11
+XX     -0613+15534     Pacific/Bougainville    Russia; Kosrae; Bougainville; 
Solomons
+#
+# +11/+12 (Australia DST)
+XX     -2903+16758     Pacific/Norfolk Norfolk Island
+#
+# +12
+XX     +5301+15839     Asia/Kamchatka  Russia; Tuvalu; Fiji; etc.
+#
+# +12/+13 (New Zealand DST)
+XX     -3652+17446     Pacific/Auckland        New Zealand ("NZST/NZDT")
+#
+# +12:45/+13:45 (Chatham DST)
+XX     -4357-17633     Pacific/Chatham Chatham Islands
+#
+# +13
+XX     -210800-1751200 Pacific/Tongatapu       Kanton; Tokelau; Samoa 
(western); Tonga
+#
+# +14
+XX     +0152-15720     Pacific/Kiritimati      Kiritimati
diff -Nru tzdata-2023c/zone.tab tzdata-2023d/zone.tab
--- tzdata-2023c/zone.tab       2023-01-23 21:46:24.000000000 +0100
+++ tzdata-2023d/zone.tab       2023-12-19 00:24:38.000000000 +0100
@@ -48,7 +48,7 @@
 AR     -2447-06525     America/Argentina/Salta Salta (SA, LP, NQ, RN)
 AR     -2411-06518     America/Argentina/Jujuy Jujuy (JY)
 AR     -2649-06513     America/Argentina/Tucuman       Tucuman (TM)
-AR     -2828-06547     America/Argentina/Catamarca     Catamarca (CT); Chubut 
(CH)
+AR     -2828-06547     America/Argentina/Catamarca     Catamarca (CT), Chubut 
(CH)
 AR     -2926-06651     America/Argentina/La_Rioja      La Rioja (LR)
 AR     -3132-06831     America/Argentina/San_Juan      San Juan (SJ)
 AR     -3253-06849     America/Argentina/Mendoza       Mendoza (MZ)
@@ -87,7 +87,7 @@
 BO     -1630-06809     America/La_Paz
 BQ     +120903-0681636 America/Kralendijk
 BR     -0351-03225     America/Noronha Atlantic islands
-BR     -0127-04829     America/Belem   Para (east); Amapa
+BR     -0127-04829     America/Belem   Para (east), Amapa
 BR     -0343-03830     America/Fortaleza       Brazil (northeast: MA, PI, CE, 
RN, PB)
 BR     -0803-03454     America/Recife  Pernambuco
 BR     -0712-04812     America/Araguaina       Tocantins
@@ -107,21 +107,21 @@
 BW     -2439+02555     Africa/Gaborone
 BY     +5354+02734     Europe/Minsk
 BZ     +1730-08812     America/Belize
-CA     +4734-05243     America/St_Johns        Newfoundland; Labrador 
(southeast)
-CA     +4439-06336     America/Halifax Atlantic - NS (most areas); PE
+CA     +4734-05243     America/St_Johns        Newfoundland, Labrador (SE)
+CA     +4439-06336     America/Halifax Atlantic - NS (most areas), PE
 CA     +4612-05957     America/Glace_Bay       Atlantic - NS (Cape Breton)
 CA     +4606-06447     America/Moncton Atlantic - New Brunswick
 CA     +5320-06025     America/Goose_Bay       Atlantic - Labrador (most areas)
 CA     +5125-05707     America/Blanc-Sablon    AST - QC (Lower North Shore)
-CA     +4339-07923     America/Toronto Eastern - ON, QC (most areas)
+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     +484531-0913718 America/Atikokan        EST - ON (Atikokan), NU (Coral 
H)
+CA     +4953-09709     America/Winnipeg        Central - ON (west), Manitoba
 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)
 CA     +5017-10750     America/Swift_Current   CST - SK (midwest)
-CA     +5333-11328     America/Edmonton        Mountain - AB; BC (E); NT (E); 
SK (W)
+CA     +5333-11328     America/Edmonton        Mountain - AB, BC(E), NT(E), 
SK(W)
 CA     +690650-1050310 America/Cambridge_Bay   Mountain - NU (west)
 CA     +682059-1334300 America/Inuvik  Mountain - NT (west)
 CA     +4906-11631     America/Creston MST - BC (Creston)
@@ -207,8 +207,8 @@
 HU     +4730+01905     Europe/Budapest
 ID     -0610+10648     Asia/Jakarta    Java, Sumatra
 ID     -0002+10920     Asia/Pontianak  Borneo (west, central)
-ID     -0507+11924     Asia/Makassar   Borneo (east, south); Sulawesi/Celebes, 
Bali, Nusa Tengarra; Timor (west)
-ID     -0232+14042     Asia/Jayapura   New Guinea (West Papua / Irian Jaya); 
Malukus/Moluccas
+ID     -0507+11924     Asia/Makassar   Borneo (east, south), Sulawesi/Celebes, 
Bali, Nusa Tengarra, Timor (west)
+ID     -0232+14042     Asia/Jayapura   New Guinea (West Papua / Irian Jaya), 
Malukus/Moluccas
 IE     +5320-00615     Europe/Dublin
 IL     +314650+0351326 Asia/Jerusalem
 IM     +5409-00428     Europe/Isle_of_Man
@@ -355,7 +355,7 @@
 RU     +643337+1431336 Asia/Ust-Nera   MSK+07 - Oymyakonsky
 RU     +5934+15048     Asia/Magadan    MSK+08 - Magadan
 RU     +4658+14242     Asia/Sakhalin   MSK+08 - Sakhalin Island
-RU     +6728+15343     Asia/Srednekolymsk      MSK+08 - Sakha (E); N Kuril Is
+RU     +6728+15343     Asia/Srednekolymsk      MSK+08 - Sakha (E), N Kuril Is
 RU     +5301+15839     Asia/Kamchatka  MSK+09 - Kamchatka
 RU     +6445+17729     Asia/Anadyr     MSK+09 - Bering Sea
 RW     -0157+03004     Africa/Kigali
@@ -418,7 +418,7 @@
 US     +465042-1012439 America/North_Dakota/New_Salem  Central - ND (Morton 
rural)
 US     +471551-1014640 America/North_Dakota/Beulah     Central - ND (Mercer)
 US     +394421-1045903 America/Denver  Mountain (most areas)
-US     +433649-1161209 America/Boise   Mountain - ID (south); OR (east)
+US     +433649-1161209 America/Boise   Mountain - ID (south), OR (east)
 US     +332654-1120424 America/Phoenix MST - AZ (except Navajo)
 US     +340308-1181434 America/Los_Angeles     Pacific
 US     +611305-1495401 America/Anchorage       Alaska (most areas)

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