Samsung SPH-A920 Phone Manual page 122

7.
Select a snooze interval for the alarm by highlighting the Snooze
field.
8.
Select Done (
100 Section 2G: Using the Phone's Scheduler and Tools
Press the navigation key left or right to select Once, Mon to
Fri, Sat & Sun, or Daily.
Press the navigation key left or right to select
5 minutes, 10 minutes, 15 minutes, or 20 minutes.
).