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3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
10 Copyright 2012 Shawn Landden
12 systemd is free software; you can redistribute it and/or modify it
13 under the terms of the GNU Lesser General Public License as published by
14 the Free Software Foundation; either version 2.1 of the License, or
15 (at your option) any later version.
17 systemd is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 Lesser General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 <refentry id="localtime">
28 <title>localtime</title>
29 <productname>systemd</productname>
33 <contrib>Developer</contrib>
34 <firstname>Lennart</firstname>
35 <surname>Poettering</surname>
36 <email>lennart@poettering.net</email>
39 <contrib>Developer</contrib>
40 <firstname>Shawn</firstname>
41 <surname>Landden</surname>
42 <email>shawnlandden@gmail.com</email>
48 <refentrytitle>localtime</refentrytitle>
49 <manvolnum>5</manvolnum>
53 <refname>localtime</refname>
54 <refpurpose>Local timezone configuration file</refpurpose>
58 <para><filename>/etc/localtime</filename> -> <filename>../usr/share/zoneinfo/…</filename></para>
62 <title>Description</title>
64 <para>The <filename>/etc/localtime</filename> file
65 configures the system-wide timezone of the local
66 system that is used by applications for presentation
67 to the user. It should be an absolute or relative
68 symbolic link pointing to
69 <filename>/usr/share/zoneinfo/</filename>, followed by
70 a timezone identifier such as
71 <literal>Europe/Berlin</literal> or
72 <literal>Etc/UTC</literal>. The resulting link should
73 lead to the corresponding binary
74 <citerefentry><refentrytitle>tzfile</refentrytitle><manvolnum>5</manvolnum></citerefentry>
75 timezone data for the configured timezone.</para>
77 <para>Because the timezone identifier is extracted from
78 the symlink target name of
79 <filename>/etc/localtime</filename>, this file may not
80 be a normal file or hardlink.</para>
82 <para>The timezone may be overridden for individual
83 programs by using the TZ environment variable. See
84 <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
87 <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
88 to change the settings of this file from the command
93 <title>See Also</title>
95 <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
96 <citerefentry><refentrytitle>tzset</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
97 <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
98 <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
99 <citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>