Time and date
To change the clock type, time, time zone, and date settings, select Menu > Settings >
Date and time > Date & time settings, Date and time format, or Auto-update of
time (network service).
When traveling to a different time zone, select Menu > Settings > Date and time >
Date & time settings > Time zone: and scroll left or right to select the time zone of
your location in terms of the time difference with respect to Greenwich mean time (GMT)
or coordinated universal time (UTC). The time and date are set according to the time
zone and enable your device to display the correct sending time of received text or
multimedia messages.