--- /dev/null
+[Unit]
+Description=Connman NTP service
+Requires=connman.service
+After=connman.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash -c "dbus-send --system --type=method_call --print-reply --dest=net.connman / net.connman.Clock.SetProperty string:'TimeUpdates' variant:string:'auto'"
+ExecStop=/bin/bash -c "dbus-send --system --type=method_call --print-reply --dest=net.connman / net.connman.Clock.SetProperty string:'TimeUpdates' variant:string:'manual'"
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target