stupid question
 

Yes i did try to find it in the manual but cant! This is for friend's x3... how do you change the darn clock?!?

Here's what it says:
Hold button 2 on the display itself (the one on the right - just to the lower left of the tach) for a few seconds until the ":" begins to flash. Press the button that's just to the left of it "S/R" until you get to the hour you want. Then press button 2 again and "S/R" until you get the minutes you want. Then press button two and you're all done. It's on page 46 and then 47 of the manual - it's also available online through the owners circle. Hope that helps.