Tap Date & time to access the following settings:
Automatic date & time Checkmark to use the network provided values.
Automatic time zone Checkmark to use the network provided time zone information.
Set date Opens a dialog box to set your own date (when the automatic setting is not checkmarked).
Set time Opens a dialog box to set your own time (when the automatic setting is not checkmarked).
Select time zone Opens a dialog box to set your own time zone (when the automatic setting is not checkmarked).
Use 24-hour format Checkmark to display the time using the 24-hour time format (for example, 13:00 instead of 1:00 pm).
Select date format Opens a dialog box to set the format for displaying dates.