On mine, when it's showing station info all the time, press and hold the AM/FM button for two seconds and the time will show for a few seconds and then it goes back to the station number.
To change it to show time always, hold down the AM/FM button and then hold down the #4 button for six seconds and it will change to time always after the beep. Do the same thing to change back to stations always.
I don't remember ever seeing an owner's manual in our download section. The PDF '99 owner's manual I posted a while back is missing the radio section.
Mark Griffin