provides a list of time zone names that are recognized by
SET TIMEZONE, along with their
associated abbreviations, UTC offsets, and daylight-savings status.
(Technically, PostgreSQL does not
use UTC because leap seconds are not handled.) Unlike the
abbreviations shown in
pg_timezone_abbrevs, many of these names
imply a set of daylight-savings transition date rules. Therefore,
the associated information changes across local DST boundaries. The
displayed information is computed based on the current value of
||Time zone name|
||Time zone abbreviation|
||Offset from UTC (positive means east of Greenwich)|
||True if currently observing daylight savings|
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