You are only required to set the time zone or set the date and time if the wireless LAN does not support Network Time Protocol (NTP) or when not connected to a cellular/wireless network.
Go to
Settings
.
Touch
System
Date & time
.
Touch
Date
to select the date in the calendar.
Touch
OK
.
Touch
Time
.
Touch the green circle, drag to the current hour, and then release.
Touch the green circle, drag to the current minute, and then release.
