If you’re looking to set your Pioneer car stereo clock, there are a few different ways to go about it. The first option is to use the car’s built-in clock. This will usually be located on the dashboard or center console. Once you’ve located the clock, press and hold down the button until the time display changes. Then, use the up and down buttons to select “AM/PM” and press OK. The next step is to set your desired time zone. To do this, press and hold down the button until “ZONE” appears in the display, then use the up and down buttons to select your desired time zone. Finally, press OK to save your settings. ..