Simply touch the app's icon on your home screen, and an opening screen will come up showing the current time, based on the system clock.

You cannot reset the time, since it is based on the system clock.

Touch the icon in the toolbar at the bottom that looks like two plus signs (far left). Two wheels ("pickers") will come up to choose a color for (1) the type and (2) the background of your display. You can see the display changing colors as you slide each picker. Make your selections on both, then press "Done."

Touch the alarm icon in the toolbar at the bottom (second from left). Set the three picker wheels for hour, minute, and am/pm. Then, click the "On" button in the lower left to enable the alarm. You will notice that the alarm icon is different when the alarm is on. This is how you know that it is on or off.

Touch the sound icon in the toolbar at the bottom (second from right). Scroll the picker wheel to select one of the standard sounds -- or, choose "Custom" to record your own alarm sound.

(NOTE: This feature only works with the iPhone -- not the iPod Touch, unless you have a microphone added to it.)

After choosing "Custom" on the sound picker wheel, you will see a red "Record" button at the lower left. Touch that button and begin recording your wake-up sound. The Record button changes states -- when recording, it is a "Stop" button, and when it is not recording it is a "Record" button. To stop recording, press "Stop." DO NOT TOUCH "DONE" UNTIL YOU ARE SATISFIED WITH THE RECORDING. You can preview your most recent recording by touching "Play." You can re-record as many times as you like. When you are satisfied with your recording, press "Done." To hear the recorded sound, touch the green "Play" button . If you are not satisfied, press "Record" again and repeat the process.

When the alarm sounds at the time you set, it will continue until you shut it off, or until your battery runs out. To shut off the sound, an alert window pops up when the alarm goes off giving you the options to "STOP" or "SNOOZE" the alarm. Touch the "STOP" button to stop the sound and shut off the alarm altogether.

When the alarm sounds, touch "SNOOZE" in the pop-up window. Each time you do this, you will get 10 minutes more to sleep before the alarm sounds again.

The power-saving feature causes your screen to shut off at a pre-determined time, depending on your settings. If you want to have your clock display on continuously, here's how you can do that: first, keep your iPhone or iPod Touch plugged in (so the battery doesn't run out before you need your alarm!) and, second, go to "Settings" from your device's main home screen, then select "General" followed by "Auto-Lock" -- then select "Never."