The systemd Project https://systemd.io Set system time Authentication is required to set the system time. auth_admin_keep auth_admin_keep auth_admin_keep org.freedesktop.timedate1.set-timezone org.freedesktop.timedate1.set-ntp Set system timezone Authentication is required to set the system timezone. auth_admin_keep auth_admin_keep auth_admin_keep Set RTC to local timezone or UTC Authentication is required to control whether the RTC stores the local or UTC time. auth_admin_keep auth_admin_keep auth_admin_keep Turn network time synchronization on or off Authentication is required to control whether network time synchronization shall be enabled. auth_admin_keep auth_admin_keep auth_admin_keep