Update time zone data files to tzdata release 2023c.
DST law changes in Egypt, Greenland, Morocco, and Palestine.
When observing Moscow time, Europe/Kirov and Europe/Volgograd now
use the abbreviations MSK/MSD instead of numeric abbreviations,
for consistency with other timezones observing Moscow time.
Also, America/Yellowknife is no longer distinct from America/Edmonton;
this affects some pre-1948 timestamps in that area.
Branch
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REL_13_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/87d8ec3e47e4da80ede7765d03a5d7433f8811d6
Modified Files
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src/timezone/data/tzdata.zi | 132 ++++++++++++++++++++++++++++++++---------
src/timezone/known_abbrevs.txt | 3 +-
2 files changed, 106 insertions(+), 29 deletions(-)