# xclock > Display the time in analog or digital form. > More information: . - 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`