Display the time in analog or digital form. More information: xclock - manned.org.
- Display an analog clock:
xclock
- Display a 24-hour digital clock with the hour and minute fields only:
xclock -digital -brief
- Display a digital clock using an strftime format string (see strftime(3)):
xclock -digital -strftime {{format}}
- Display a 24-hour digital clock with the hour, minute and second fields that updates every second:
xclock -digital -strftime '%H:%M:%S' -update 1
- Display a 12-hour digital clock with the hour and minute fields only:
xclock -digital -twelve -brief