name : update-notifier-motd.timer [Unit] Description=Check to see whether there is a new version of Ubuntu available After=network.target network-online.target systemd-networkd.service NetworkManager.service connman.service [Timer] OnCalendar=Sun *-*-* 06:00:00 RandomizedDelaySec=1w Persistent=true [Install] WantedBy=timers.target