localtime.xml revision 30f10abf42f9e4d251a0b45b07812aafdef6be7c
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This file is part of systemd.
Copyright 2010 Lennart Poettering
Copyright 2012 Shawn Landden
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<refentry id="localtime">
<refentryinfo>
<title>localtime</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
<author>
<contrib>Developer</contrib>
<firstname>Shawn</firstname>
<surname>Landden</surname>
<email>shawnlandden@gmail.com</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>localtime</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>localtime</refname>
<refpurpose>Local timezone configuration file</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/etc/localtime</filename> -&gt; <filename>/usr/share/zoneinfo/…</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>The <filename>/etc/localtime</filename> file
configures the system-wide timezone of the local
system that is used by applications for presentation
to the user. It should be an absolute or relative
symbolic link pointing to
<filename>/usr/share/zoneinfo/</filename>, followed by
a timezone identifier such as
<literal>Europe/Berlin</literal> or
<literal>Etc/UTC</literal>. The resulting link should
lead to the corresponding binary
<citerefentry><refentrytitle>tzfile</refentrytitle><manvolnum>5</manvolnum></citerefentry>
timezone data for the configured timezone.</para>
<para>Because the timezone identifier is extracted from
the symlink target name of
<filename>/etc/localtime</filename>, this file may not
be a normal file or hardlink.</para>
<para>The timezone may be overridden for individual
programs by using the TZ environment variable. See
<citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
<para>You may use
<citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
to change the settings of this file from the command
line during runtime. Use
<citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
to initialize the time zone on mounted (but not
booted) system images.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>tzset</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>