Ste the Time
Below is an excerpt from the User's Manual:
In Standby mode, Manual Clock Adjustment (this adjustment can be done when the <Synchronize Clock> is set as OFF).
1. Select Clock Adjustment mode, Push the Control **** to [FM] or [AM]. Select the "Clock Adjust" display.
2. Enter Clock Adjust mode, Press the Control **** for at least 1 second. The clock display blinks.
3. Adjust the hours, Push the Control **** to [FM] or [AM].
Adjust the minutes, Push the Control **** to  or [¢].
4. Exit Clock adjustment mode, Press the [MENU] button.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.