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>45.69. <TT
CLASS="STRUCTNAME"
>pg_timezone_names</TT
></A
></H1
><P
>   The view <TT
CLASS="STRUCTNAME"
>pg_timezone_names</TT
> provides a list
   of time zone names that are recognized by <TT
CLASS="COMMAND"
>SET TIMEZONE</TT
>,
   along with their associated abbreviations, UTC offsets,
   and daylight-savings status.  (Technically,
   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> uses <ACRONYM
CLASS="ACRONYM"
>UT1</ACRONYM
> rather
   than UTC because leap seconds are not handled.)
   Unlike the abbreviations shown in <A
HREF="view-pg-timezone-abbrevs.html"
><TT
CLASS="STRUCTNAME"
>pg_timezone_abbrevs</TT
></A
>, 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 <CODE
CLASS="FUNCTION"
>CURRENT_TIMESTAMP</CODE
>.
  </P
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>Table 45-70. <TT
CLASS="STRUCTNAME"
>pg_timezone_names</TT
> Columns</B
></P
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><TH
>Name</TH
><TH
>Type</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>name</TT
></TD
><TD
><TT
CLASS="TYPE"
>text</TT
></TD
><TD
>Time zone name</TD
></TR
><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 currently observing daylight savings</TD
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