NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | COLOPHON

SYSTEMD-TIMESYNCD.SERVICE(8)stemd-timesyncd.serviceTEMD-TIMESYNCD.SERVICE(8)

NAME         top

       systemd-timesyncd.service, systemd-timesyncd - Network Time
       Synchronization

SYNOPSIS         top

       systemd-timesyncd.service

       /usr/lib/systemd/systemd-timesyncd

DESCRIPTION         top

       systemd-timesyncd 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.

       The systemd-timesyncd service specifically implements only SNTP. This
       minimalistic service will set the system clock for large offsets or
       slowly adjust it for smaller deltas. More complex use cases are not
       covered by systemd-timesyncd.

       The NTP servers contacted are determined from the global settings in
       timesyncd.conf(5), the per-link static settings in .network files,
       and the per-link dynamic settings received over DHCP. See
       systemd.network(5) for more details.

       timedatectl(1)'s set-ntp command may be used to enable and start, or
       disable and stop this service.

FILES         top

       /var/lib/systemd/clock
           This file contains the timestamp of the last successful
           synchronization.

SEE ALSO         top

       systemd(1), timesyncd.conf(5), systemd.network(5),
       systemd-networkd.service(8), timedatectl(1), localtime(5), hwclock(8)

COLOPHON         top

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a bug
       report for this manual page, see 
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.  This
       page was obtained from the project's upstream Git repository 
       ⟨https://github.com/systemd/systemd.git⟩ on 2017-07-05.  If you dis‐
       cover any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail
       to man-pages@man7.org

systemd 234                                     SYSTEMD-TIMESYNCD.SERVICE(8)

Pages that refer to this page: timedatectl(1)systemd.network(5)timesyncd.conf(5)systemd.directives(7)systemd.index(7)