Provided by: systemd_240-6ubuntu5_amd64
systemd-timedated.service, systemd-timedated - Time and date bus mechanism
systemd-timedated is a system service that may be used as a mechanism to change the system clock and timezone, as well as to enable/disable NTP time synchronization. systemd-timedated is automatically activated on request and terminates itself when it is unused. The tool timedatectl(1) is a command line client to this service. See the developer documentation for information about the APIs systemd-timedated provides.
$SYSTEMD_TIMEDATED_NTP_SERVICES Colon-separated list of unit names of NTP client services. If not set, then systemd- timesyncd.service(8) is used. See the entries of NTP related commands of timedatectl(1) for details about this. Example: SYSTEMD_TIMEDATED_NTP_SERVICES=ntpd.service:chronyd.service:systemd-timesyncd.service
systemd(1), timedatectl(1), localtime(5), hwclock(8), systemd-timesyncd(8)
1. developer documentation https://www.freedesktop.org/wiki/Software/systemd/timedated