I hope by now you were able to find the solution to setting the clock. I also had the same problem recently after purchansing a vehicle with this stereo. (It took me about 2 days to discover this.) This is what I found to be the solution. Hold the SEL button for two seconds. You should see DEMO on the screen. Keep holding the button until it says DEMO OFF. Then use the right and left arrows on the bottom right hand side of the radio to scroll. There you will find the feature. It will say CLOCK H. To change the hour, you will need to use the wheel. Then press the right arrow again to change the screen to CLOCK M. When you are done, hit the select button. I hope this helps.
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