How do I reset the clock for the one hour time

The Panasonic DMR-EH50 can be reset like it was brand new. I assume the DMR-EH55 can be also. The up and down channel buttons are located on the front of the unit behind the small door in the center. With the unit on press and hold these two buttons for atleast 10 seconds. This will restore the unit like it was new and you will need to go thru set up procedure. The above action will put the unit in the off position. When you turn it on it will guide you thru the set up procedure. Once this is complete you can press the setup button and manually set the clock, however, the unit will need to be shut down for 24 hours to allow the tv stations line-up to be restored.