systemd-timesyncd.service systemd Developer Kay Sievers kay@vrfy.org systemd-timesyncd.service 8 systemd-timesyncd.service systemd-timesyncd Network Time Synchronization systemd-timesyncd.service /usr/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. See Also systemd1, timedatectl1, localtime5, hwclock8