Changing the time pioneer DEN2000MP

The solution that worked for me is:

1) turn off the radio.
2) Push and hold the power button down (the dial). DON'T release the button.
3) The unit will display the time on the lcd screen with the numbers flashing, (only hr or min).
4) use the up/dwn, right/left buttons to set the clock.
5) turn off the unit by pushing the power button (again, the dial).

That is it. the clock should be set.

Hope that helps,

General clock setting for Pioneer car head units
1)press "SRC" and hold till unit goes "OFF"
2)press "audio" and hold until a blinking clock appears on display
3)set clock by pressing the UP , DN ,& RT , LEFT keys situated around the joystick.