It was after a specific scanning for the foxHD channel on 99W. Scanning Didn't work. So I went to check my timers in menu and decided to check the clock first. It was exactly 4 hrs off. But I cannot say the scanning triggered it because I realized I did not look at the clock prior to scanning.
However, I have had no previous clock problems of any kind before.
This is a helpful start! We will attempt to replicate the time jump by scanning FoxHD on 99w.