Trip Odometer and clock resets when iignition switch is turned off..

Has anyone had this issue that when the ignition switch is turned off, the trip odometer and clock resets back to zero and 12:00(respectively).
Also, the fuel gauge, temp gauge, and Tach needles remain in the position where they were as if the car was still on. And the radio has to be turned off manually.
I have checked to grounds under the battery. I am thinking ignition switch?
Any suggestions are appreciated..

Trip Odometer and clock resets when iignition switch is turned off..