How do you change the time on pioneer den 1300 mp?

To change the time on a Pioneer DEH-1300MP, turn on the unit and press the "Function" button until you reach the "Clock" setting. Use the "Up" and "Down" buttons to adjust the hours, then press "Function" again to set the minutes, adjusting them in the same way. Once you've set the correct time, press the "Function" button again to save your changes. Make sure to check the manual for specific details if needed.