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+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Kay Sievers
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-timesyncd.service" conditional='ENABLE_TIMESYNCD'>
+
+  <refentryinfo>
+    <title>systemd-timesyncd.service</title>
+    <productname>systemd</productname>
+
+    <authorgroup>
+      <author>
+        <contrib>Developer</contrib>
+        <firstname>Kay</firstname>
+        <surname>Sievers</surname>
+        <email>kay@vrfy.org</email>
+      </author>
+    </authorgroup>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>systemd-timesyncd.service</refentrytitle>
+    <manvolnum>8</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>systemd-timesyncd.service</refname>
+    <refname>systemd-timesyncd</refname>
+    <refpurpose>Network Time Synchronization</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>systemd-timesyncd.service</filename></para>
+    <para><filename>/usr/lib/systemd/systemd-timesyncd</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para><filename>systemd-timesyncd</filename> is a system service
+    that may be used to synchronize the local system clock with a
+    remote Network Time Protocol server. It also saves the local time
+    to disk every time the clock has been synchronized and uses this
+    to possibly advance the system realtime clock on subsequent
+    reboots to ensure it monotonically advances even if the system
+    lacks a battery-buffered RTC chip.</para>
+
+    <para>The NTP servers contacted are determined from the global
+    settings in
+    <citerefentry><refentrytitle>timesyncd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+    the per-link static settings in <filename>.network</filename>
+    files, and the per-link dynamic settings received over DHCP. See
+    <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+    for more details.</para>
+
+    <para><citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s
+    <command>set-ntp</command> command may be used to enable and
+    start, or disable and stop this service.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>Files</title>
+
+    <variablelist>
+      <varlistentry>
+        <term><filename>/var/lib/systemd/clock</filename></term>
+
+        <listitem>
+          <para>This file contains the timestamp of the last successful
+          synchronization.</para>
+        </listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1>
+    <title>See Also</title>
+    <para>
+      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>timesyncd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+</refentry>