systemd/man/timezone.xml

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<refentry id="timezone">
        <refentryinfo>
                <title>/etc/timezone</title>
                <productname>systemd</productname>

                <authorgroup>
                        <author>
                                <contrib>Developer</contrib>
                                <firstname>Lennart</firstname>
                                <surname>Poettering</surname>
                                <email>lennart@poettering.net</email>
                        </author>
                </authorgroup>
        </refentryinfo>

        <refmeta>
                <refentrytitle>timezone</refentrytitle>
                <manvolnum>5</manvolnum>
        </refmeta>

        <refnamediv>
                <refname>timezone</refname>
                <refpurpose>Local time zone configuration file</refpurpose>
        </refnamediv>

        <refsynopsisdiv>
                <para><filename>/etc/timezone</filename></para>
        </refsynopsisdiv>

        <refsect1>
                <title>Description</title>

                <para>The <filename>/etc/timezone</filename> file
                configures the system-wide time zone of the local
                system that is used by applications for presentation
                to the user. It should contain a single
                newline-terminated line consisting of a time zone
                identifier such as
                <literal>Europe/Berlin</literal>. The file
                <filename>/etc/localtime</filename> corresponds with
                <filename>/etc/timezone</filename> and contains the
                binary time zone data for the time zone. These files
                should always be changed simultaneously and kept in
                sync.</para>

                <para>The time zone may be overridden for individual
                programs by using the TZ environment variable. See
                <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
        </refsect1>

        <refsect1>
                <title>History</title>

                <para>The simple configuration file format of
                <filename>/etc/timezone</filename> originates from
                Debian GNU/Linux.</para>
        </refsect1>

        <refsect1>
                  <title>See Also</title>
                  <para>
                          <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                  </para>
        </refsect1>

</refentry>