PostgreSQL 9.4.0 Documentation
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# 48.71. `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 48-72. `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

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