Select Clock.
Select 
> Alarm snooze time, and set the length of time.
When an alarm sounds, you can snooze the alarm. This pauses the alarm for a defined length of time.
When the alarm sounds, select Snooze.
Select Clock.
Select > Alarm snooze time, and set the length of time.
 | Tip: You can snooze alarms also by turning your phone face down.  |