Have a 89 Dodge Dakota. How do you set the clock on the radio. Radio comes on, but time is incorrect. There is no "Clock" button.?

It doesn't by any chance have two small holes anywhere on the face with a h and m beside them??If so,you have to use a ink pen or similar size object and insert the pen roller into the hole then press/release/press/release until you get the time set correctly.If you don't have this type of radio,some require you to push and hold the power knob in,then move the seek or tune buttons to adjust the time.