From the home screen, tap the Apps icon. Note: The device will automatically attempt to set the date and time from the network. This tutorial demonstrates how to manually set the date and time on your device.
Swipe to, then tap Settings.
Scroll to "System", then tap Date & time.
Tap the Automatic date & time checkbox.
Tap Set date.
Tap the desired date, then tap OK.
Tap Set time.
Tap the desired hour.
Tap the desired minute.
Tap AM or PM.
Tap OK.
To set an alarm, tap the Apps icon.
Swipe to, then tap Clock.
Tap the desired alarm to edit.
Select the desired time, then tap OK.
Tap the Alarm switch to toggle the desired alarm on or off.