How do change the time on the radio in a 2002 Mitsubishi Galant?

If it is a stock radio, turn the car radio off to where no sound is coming from it but the clock is illuminated. Press the "clock" button and hold until the time starts blinking. On your station preset buttons at the bottom of your radio, button 5 has an "H" on it and button 6 has an "M" on it. Press button 5 until the correct hour displays then button 6 until your clock reflects the current time. Finally, press the clock button to allow the radio to accept the changes.