[src/TZDATA]: src/external/public-domain/tz/dist Import tzdata2023c from http...

[kre <kre%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c00851994cff
branches:  TZDATA
changeset: 374097:c00851994cff
user:      kre <kre%NetBSD.org@localhost>
date:      Fri Mar 31 19:03:06 2023 +0000

description:
Import tzdata2023c from https://github.com/JodaOrg/global-tz/releases/download/2023cgtz/tzdata2023cgtz.tar.gz

Summary of changes in tzdata2023c (2023-03-28 12:42:14 -0700):

   This essentially reverts the 2023b update, as the proposed delay
   of the start of summer time in Lebanon didn't end up happening as
   intended.   What did happen was apparently chaos ... the official
   start of summer time was still delayed, but only until last Wednesday
   night (between 2023-03-29 and 2029-03-30) - which has already passed.

   Since it is unclear what local time was actually observed during
   the period between when summer time was originally planned to start
   (last Sat night, between 2023-03-25 and 2023-03-26) and when it
   officially did, for now, this update simply reverts to the original
   start time (2023-03-26 00:00:00 local).   Should that turn out to
   be sub-optimal, a later update can correct it.   Only timestamps
   for the period between 2023-03-26 00:00:00 and 2023-03-30 00:00:00
   are affected.

diffstat:

 external/public-domain/tz/dist/NEWS    |  13 +++++++---
 external/public-domain/tz/dist/asia    |  40 +++++++++++++++++++++++++++++----
 external/public-domain/tz/dist/version |   2 +-
 3 files changed, 45 insertions(+), 10 deletions(-)

diffs (93 lines):

diff -r ec9b69ad7049 -r c00851994cff external/public-domain/tz/dist/NEWS
--- a/external/public-domain/tz/dist/NEWS       Fri Mar 24 12:33:37 2023 +0000
+++ b/external/public-domain/tz/dist/NEWS       Fri Mar 31 19:03:06 2023 +0000
@@ -1,14 +1,19 @@
 News for the tz database
 
+Release 2023c - 2023-03-28 12:42:14 -0700
+
+  Changes to past and future timestamps
+
+    Model Lebanon's DST chaos by reverting data to tzdb 2023a.
+    (Thanks to Rany Hany for the heads-up.)
+
+
 Release 2023b - 2023-03-23 19:50:38 -0700
 
-  Briefly:
-    Lebanon delays the start of DST this year.
-
   Changes to future timestamps
 
     This year Lebanon springs forward April 20/21 not March 25/26.
-    (Thanks to Saadallah Itani.)
+    (Thanks to Saadallah Itani.)  [This was reverted in 2023c.]
 
 
 Release 2023a - 2023-03-22 12:39:33 -0700
diff -r ec9b69ad7049 -r c00851994cff external/public-domain/tz/dist/asia
--- a/external/public-domain/tz/dist/asia       Fri Mar 24 12:33:37 2023 +0000
+++ b/external/public-domain/tz/dist/asia       Fri Mar 31 19:03:06 2023 +0000
@@ -2729,9 +2729,37 @@ Zone     Asia/Vientiane  6:50:24 -       LMT     1906 J
 # Lebanon
 #
 # From Saadallah Itani (2023-03-23):
-# Lebanon too announced today delay of Spring forward from March 25 to April 20.
-# From Paul Eggert (2023-03-23):
+# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
+#
+# From Paul Eggert (2023-03-27):
+# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
 # https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
+# A video was later leaked to the media of parliament speaker Nabih Berri
+# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
+# that this would cause problems such as scheduling airline flights, to which
+# Berri interjected, "What flights?"
+#
+# The change was controversial and led to a partly-sectarian divide.
+# Many Lebanese institutions, including the education ministry, the Maronite
+# church, and two news channels LCBI and MTV, ignored the announcement and
+# went ahead with the long-scheduled spring-forward on March 25/26, some
+# arguing that the prime minister had not followed the law because the change
+# had not been approved by the cabinet.  Google went with the announcement;
+# Apple ignored it.  At least one bank followed the announcement for its doors,
+# but ignored the announcement in internal computer systems.
+# Beirut international airport listed two times for each departure.
+# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
+# Eventually the prime minister backed down, said the cabinet had decided to
+# stick with its 1998 decision, and that DST would begin midnight March 29/30.
+# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
+# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
+#
+# Although we could model the chaos with two Zones, that would likely cause
+# more trouble than it would cure.  Since so many manual clocks and
+# computer-based timestamps ignored the announcement, stick with official
+# cabinet resolutions in the data while recording the prime minister's
+# announcement as a comment.  This is how we treated a similar situation in
+# Rio de Janeiro in spring 1993.
 #
 # Rule NAME    FROM    TO      -       IN      ON      AT      SAVE    LETTER/S
 Rule   Lebanon 1920    only    -       Mar     28      0:00    1:00    S
@@ -2755,11 +2783,13 @@ Rule    Lebanon 1988    only    -       Jun     1       0:00    1:00
 Rule   Lebanon 1989    only    -       May     10      0:00    1:00    S
 Rule   Lebanon 1990    1992    -       May     1       0:00    1:00    S
 Rule   Lebanon 1992    only    -       Oct     4       0:00    0       -
-Rule   Lebanon 1993    2022    -       Mar     lastSun 0:00    1:00    S
+Rule   Lebanon 1993    max     -       Mar     lastSun 0:00    1:00    S
 Rule   Lebanon 1993    1998    -       Sep     lastSun 0:00    0       -
 Rule   Lebanon 1999    max     -       Oct     lastSun 0:00    0       -
-Rule   Lebanon 2023    only    -       Apr     21      0:00    1:00    S
-Rule   Lebanon 2024    max     -       Mar     lastSun 0:00    1:00    S
+# This one-time rule, announced by the prime minister first for April 21
+# then for March 30, is commented out for reasons described above.
+#Rule  Lebanon 2023    only    -       Mar     30      0:00    1:00    S
+
 # Zone NAME            STDOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Beirut     2:22:00 -       LMT     1880
                        2:00    Lebanon EE%sT
diff -r ec9b69ad7049 -r c00851994cff external/public-domain/tz/dist/version
--- a/external/public-domain/tz/dist/version    Fri Mar 24 12:33:37 2023 +0000
+++ b/external/public-domain/tz/dist/version    Fri Mar 31 19:03:06 2023 +0000
@@ -1,1 +1,1 @@
-2023bgtz
+2023cgtz