Connecting to a cellular or wireless network automatically synchronizes the device's date and time via a NITZ server. Manually set the date, time, or time zone only if the network lacks NTP support or the device is offline.
Go to
Settings
.
Touch
System
Date & time
.
Touch
Set time automatically
to disable automatic date and time synchronization.
Touch
Set automatically
to disable automatic time zone synchronization.
Touch
Date
to select the date in the calendar.
Touch
OK
.
Touch
Time
.
Touch the circle, drag to the current hour, and then release.
Touch the circle, drag to the current minute, and then release.
Touch
AM
or
PM
.
Touch
OK
.
Touch
Time zone
to select the current time zone from the list.
Touch
Update Interval
to select an interval to synchronize the system time from the network.