Apple's default method for setting an alarm on an iPhone is a wheel instead of a numeric keypad, but you can temporarily change that. Apple likes to gamble with you and what time you're going to wake ...
Snoozing alarms just doesn't work for my brain. Whenever I've tried it, my mind goes into overdrive thinking either I'll miss the alarm or it won't go off, and I wake up feeling anxious and groggy.
Good luck getting your boss to believe this one if you sleep in. iPhone users are lamenting that a subtle setting is causing their important clock alarms to not ring out — especially in the morning.