systemd-timesyncd.service, systemd-timesyncd — Network Time Synchronization
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 NTP servers contacted are determined from the global
the per-link static settings in
files, and the per-link dynamic settings received over DHCP. See
for more details.
timedatectl(1)'s set-ntp command may be used to enable and start, or disable and stop this service.
This file contains the timestamp of the last successful synchronization.