How do you set an alarm on an iPhone 4?
First of all turn on your iPhone and tap the "Clock" application on the home screen and then select the "Alarm" icon at the bottom of the Clock application. Press the plus sign in the top right corner of the Clock application and then select an alarm time from the numbers displayed. You can get more information from http://www.ehow.com/how_2080585_use-iphone-alarm-clock.html and http://www.ehow.com/how_2275295_set-alarm-iphone.html.
Under utilities you will see a clock, select the clock then at the bottom of the screen there is an alarm clock. Select the alarm clock then set it to the desired time. I hope this helps.