How To set the Clock for Atlanta A6877 CD/MP3 player?

Jeff, I am in the same situation, no manual . hope this helps.
press the clock button to display the clock.
press and hold the clock button till it beeps, then the clock starts flashing, then use the station seek buttons at the top right of the face. left for hours and right for minutes.
I also have this unit and have only just figured this out.I still dont know how you plug an MP3 player to the unit or to get the clock to display all the time rather than the station

Terry
March 2009