Open the Alarms app on your Apple Watch
Force press or scroll to add a new alarm
Tap Add Alarm
Set the hour and minute using the Digital Crown
Tap AM or PM if needed
Tap Set or Save
To edit an alarm, tap the alarm and adjust the time
To turn an alarm on or off, tap the alarm’s switch
To delete an alarm, swipe left on the alarm and tap Delete
You can also use Siri by saying “Set an alarm for [time]”