$ curl cheat.sh/

# xclock
# Display the time in analog or digital form.
# More information: <https://manned.org/xclock>.

# 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

$

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