From the main screen, select Menu. Utilize the 5-way navigation pad to highlight and the center button to select.
Select Tools & Settings.
Select Settings.
Select Phone Settings.
Select Date & time.
To use network-provided values, select the following:
Auto-date & time
Highlight On then select Set.
Auto-time zone
Highlight On then select Set.
When manually setting date and time, perform the following steps: Auto-date & time and auto-time zone settings must be turned off to manually adjust the date and time.