BASIC
Enable the Auto-date & time option or tap Set date and/or Set time to use a date/time other than the one provided by the network.
Enable the Auto-time zone option or tap Select time zone to use a time zone other than the one provided by the network.
TIME FORMAT
Use 24-hour format Enable this option to display the time using the 24-hour format (e.g., 13:00 instead of 1:00 PM).