pg_timezone_names

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.

English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.

Reading PG 18·Select a recorded version

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kind: view
lang: en
measured attributes: true
metadata release: 18.6
runtime columns: name, abbrev, utc_offset, is_dst
runtime verified: false
source: english-manual

Definition PG 18

Catalog columns

Column	Type	Nullability	Description
name	text	Nullable	Time zone name
abbrev	text	Nullable	Time zone abbreviation
utc_offset	interval	Nullable	Offset from UTC (positive means east of Greenwich)
is_dst	bool	Nullable	True if currently observing daylight savings

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Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · catalog-bilingual-repair:62228adef885325e2a326170e820181c907827101eadd18d3982d2e9945db229

Text language: en · catalog-bilingual-repair:62228adef885325e2a326170e820181c907827101eadd18d3982d2e9945db229