Set date and time
It's important that the date and time are correct as some phone functions won't work.
Find "Date & time"
Slide your finger downwards starting from the top of the screen.
Tap the settings icon.
Tap Date & time.
Turn on automatic date and time update
Tap Auto-date & time to turn on the function.
Turn on automatic time zone update
Tap Auto-time zone to turn on the function.
Turn on manual time zone update
Tap Auto-time zone to turn off the function.
Tap Select time zone.
Tap the required time zone.
Return to the home screen
Tap the Home key to return to the home screen.