Setting time in 2000 cav

How do I set the time in my 2000 Cavalier? I was installing an amp so I disconnected the battery and now the time is off and I can't figure out how to reset it. I don't have my manual.

No one knows how to do this?

just play with all the buttons. you probably have to hold something in for a few seconds then you will beable to set the time

yeah, I know, I've been trying. I played with holding every button on the panel. I've spent an hour or so trying but it still wont let me set the time. What kind of crummy car is this? The time has been wrong for the last 2 weeks.