I have tried the procedure you described and could not get the clock to toggle. The control button is not clear as to the mode it is in. Maybe a blown up picture of it with information on each of its functions would help.
JOEL The radio I have has a FUNC on the outer circle of the switch and that is the only way I seem to be able to change between modes. I've tried many times to perform the steps you have suggested with out any success.
Joel; Thank you for the pictorial of the control button. I've tried every thing I can think of to no avail. I even went to a local Auto Sound System Shop and had the Tech try to set the time. He could'nt get it to work either.
I tried the trick of disconnecting the power and reconnecting it at 12:00 noon but that didn't work either. It's possible that Function does not work on this radio.
We haven't solved the problem but you should get something for your efforts so I'm going to hit Accept. Many Thanks.