<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>52.89. pg_timezone_abbrevs</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="view-pg-tables.html" title="52.88. pg_tables" /><link rel="next" href="view-pg-timezone-names.html" title="52.90. pg_timezone_names" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">52.89. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_timezone_abbrevs</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="view-pg-tables.html" title="52.88. pg_tables">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 52. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 52. System Catalogs</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 11.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="view-pg-timezone-names.html" title="52.90. pg_timezone_names">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="VIEW-PG-TIMEZONE-ABBREVS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.89. <code class="structname">pg_timezone_abbrevs</code></h2></div></div></div><a id="id-1.10.4.91.2" class="indexterm"></a><p> The view <code class="structname">pg_timezone_abbrevs</code> provides a list of time zone abbreviations that are currently recognized by the datetime input routines. The contents of this view change when the <a class="xref" href="runtime-config-client.html#GUC-TIMEZONE-ABBREVIATIONS">timezone_abbreviations</a> run-time parameter is modified. </p><div class="table" id="id-1.10.4.91.4"><p class="title"><strong>Table 52.90. <code class="structname">pg_timezone_abbrevs</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_timezone_abbrevs Columns" border="1"><colgroup><col /><col /><col /></colgroup><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td><code class="structfield">abbrev</code></td><td><code class="type">text</code></td><td>Time zone abbreviation</td></tr><tr><td><code class="structfield">utc_offset</code></td><td><code class="type">interval</code></td><td>Offset from UTC (positive means east of Greenwich)</td></tr><tr><td><code class="structfield">is_dst</code></td><td><code class="type">boolean</code></td><td>True if this is a daylight-savings abbreviation</td></tr></tbody></table></div></div><br class="table-break" /><p> While most timezone abbreviations represent fixed offsets from UTC, there are some that have historically varied in value (see <a class="xref" href="datetime-config-files.html" title="B.4. Date/Time Configuration Files">Section B.4</a> for more information). In such cases this view presents their current meaning. </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="view-pg-tables.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="view-pg-timezone-names.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">52.88. <code class="structname">pg_tables</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 52.90. <code class="structname">pg_timezone_names</code></td></tr></table></div></body></html>
