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<?xml version="1.0" encoding="ISO-8859-1"?>
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- Copyright (C) 1998-2018 OpenLink Software
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- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
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-->
<refentry id="fn_forget_timezone">
<refmeta>
<refentrytitle>forget_timezone</refentrytitle>
<refmiscinfo>time</refmiscinfo>
</refmeta>
<refnamediv>
<refname>forget_timezone</refname>
<refpurpose>returns its first argument as a timezoned value</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_forget_timezone">
<funcprototype id="fproto_forget_timezone">
<funcdef>datetime <function>forget_timezone</function></funcdef>
<paramdef>in <parameter>dt</parameter> datetime</paramdef>
<paramdef><optional>in <parameter>ignore_timezone</parameter> integer</optional></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_forget_timezone"><title>Description</title>
<para>The function returns its first argument as a timezoned value. If the first argument is timezoneless then it is
returned unchanged. If the first argument is timezoned and second argument is missing or zero then the result is
timezoneless value that "looks like" local time notation. If the first argument is timezoned and second argument
is nonzero then the value is first made GMT and then it becomes timezoneless.</para>
</refsect1>
<refsect1 id="params_forget_timezone"><title>Parameters</title>
<refsect2>
<title>dt</title>
<para>Datetime value.</para>
</refsect2>
<refsect2>
<title>ignore_timezone</title>
<para>Flag</para>
</refsect2>
</refsect1>
<refsect1 id="examples_forget_timezone"><title>Examples</title>
<example id="ex_forget_timezone"><title>Simple example</title>
<para></para>
<screen>
SQL> select cast (forget_timezone (cast ('1999-12-31 11:59+02:00' as datetime)) as varchar);
VARCHAR
'1999-12-31 11:59:00'
No. of rows in result: 1
</screen>
</example>
</refsect1>
<refsect1 id="seealso_forget_timezone"><title>See Also</title>
<para><link linkend="fn_now"><function>now</function></link></para>
<para><link linkend="fn_timezone"><function>timezone</function></link></para>
<para><link linkend="fn_is_timezoneless"><function>is_timezoneless</function></link></para>
<para><link linkend="fn_adjust_timezone"><function>adjust_timezone</function></link></para>
<para><link linkend="fn_rdf_now_impl"><function>rdf_now_impl</function></link></para>
<para><link linkend="fn_current_timestamp"><function>current_timestamp</function></link></para>
<para><link linkend="fn_curdatetime"><function>curdatetime</function></link></para>
<para><link linkend="fn_curdatetimeoffset"><function>curdatetimeoffset</function></link></para>
<para><link linkend="fn_curutcdatetime"><function>curutcdatetime</function></link></para>
<para><link linkend="fn_sysutcdatetime"><function>sysutcdatetime</function></link></para>
<para><link linkend="fn_stringdate"><function>stringdate</function></link></para>
<para><link linkend="fn_datestring"><function>datestring</function></link></para>
</refsect1>
</refentry>
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