Change the time and date
Date and time
Change the time zone when travelling
Date & time settings
2 To select the time zone of your location, scroll left or right.
The time and date are set according to the time zone. This makes sure that your
phone displays the correct sending time of received text or multimedia messages.
For example, GMT -5 denotes the time zone for New York (USA), 5 hours west of
Greenwich, London (UK).