From the home screen, swipe down from the Notification bar with two fingers. 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.
Tap the Settings icon.
Scroll to then tap Date & time.
Tap Automatic date & time to toggle on/off.
With Automatic date & time disabled, tap Set date.
Scroll to then tap the desired date.
Tap OK.
Tap Set time.
Tap or drag around the clock's circumference to set the time. Tap to set the time as AM or PM.