systemd-timesyncd.service(8) mojave man page | unix.com

SYSTEMD-TIMESYNCD.SERVICE(8)                                 systemd-timesyncd.service                                SYSTEMD-TIMESYNCD.SERVICE(8)

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

SYNOPSIS
       systemd-timesyncd.service

       /lib/systemd/systemd-timesyncd

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

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

systemd 237                                                                                                           SYSTEMD-TIMESYNCD.SERVICE(8)