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contrib/tzdata: import tzdata 2023c

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Changes: https://github.com/eggert/tz/blob/2023c/NEWS

The tzdata 2023c release reverts all changes made in 2023b other than
commentary, as that appears to be the best of a bad set of short-notice
choices for modeling this week's daylight saving chaos in Lebanon.

MFC after:      insta-MFC
This commit is contained in:
Philip Paeps 2023-03-29 09:09:54 +08:00
commit 9fbeeb6e38
3 changed files with 45 additions and 10 deletions
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13
contrib/tzdata/NEWS
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@ -1,14 +1,19 @@
News for the tz database
Release 2023b - 2023-03-23 19:50:38 -0700
Release 2023c - 2023-03-28 12:42:14 -0700
Briefly:
Lebanon delays the start of DST this year.
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
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

40
contrib/tzdata/asia
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@ -2693,9 +2693,37 @@ Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
# 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
@ -2719,11 +2747,13 @@ Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
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

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contrib/tzdata/version
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@ -1 +1 @@
2023b
2023c