The view pg_timezone_names 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 CURRENT_TIMESTAMP.
Table 50-81. pg_timezone_names Columns
| Name | Type | Description |
|---|---|---|
name | text | Time zone name |
abbrev | text | Time zone abbreviation |
utc_offset | interval | Offset from UTC (positive means east of Greenwich) |
is_dst | boolean | True if currently observing daylight savings |
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