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>45.68. <TT
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>pg_timezone_abbrevs</TT
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>   The view <TT
CLASS="STRUCTNAME"
>pg_timezone_abbrevs</TT
> 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
HREF="runtime-config-client.html#GUC-TIMEZONE-ABBREVIATIONS"
>timezone_abbreviations</A
> run-time parameter is modified.
  </P
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>Table 45-69. <TT
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>pg_timezone_abbrevs</TT
> Columns</B
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><TH
>Name</TH
><TH
>Type</TH
><TH
>Description</TH
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></THEAD
><TBODY
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>abbrev</TT
></TD
><TD
><TT
CLASS="TYPE"
>text</TT
></TD
><TD
>Time zone abbreviation</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>utc_offset</TT
></TD
><TD
><TT
CLASS="TYPE"
>interval</TT
></TD
><TD
>Offset from UTC (positive means east of Greenwich)</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>is_dst</TT
></TD
><TD
><TT
CLASS="TYPE"
>boolean</TT
></TD
><TD
>True if this is a daylight-savings abbreviation</TD
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><P
>   While most timezone abbreviations represent fixed offsets from UTC,
   there are some that have historically varied in value
   (see <A
HREF="datetime-config-files.html"
>Section B.3</A
> for more information).
   In such cases this view presents their current meaning.
  </P
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