How to adjust hour on stock radio
 

Hi, I'm a french canadian from Quebec and I purchased a 1989 GTA last month. I love this car! The inside and the body are perfect. There's only the cruise control and the power antenna that aren't working. It's really a great car, even the AC is fine. For now, I would like to set the clock on the stock radio/tape (DELCO LOC). It's probably easy but I can't find the way. It would be great if someone could take a minute and tells me how.

Thank!