## 49.77. `pg_timezone_abbrevs`

The view `pg_timezone_abbrevs` provides a list of time zone abbreviations that are currently recognized by the datetime input routines. The contents of this view change when the timezone_abbreviations run-time parameter is modified.

Table 49.78. `pg_timezone_abbrevs` Columns

Name | Type | Description
--- | --- | ---
`abbrev` | `text` | Time zone abbreviation
`utc_offset` | `interval` | Offset from UTC (positive means east of Greenwich)
`is_dst` | `boolean` | True if this is a daylight-savings abbreviation

While most timezone abbreviations represent fixed offsets from UTC, there are some that have historically varied in value (see Section B.3, “Date/Time Configuration Files” for more information). In such cases this view presents their current meaning.