I've answered this Q a couple of times.
If it has a stock car radio.....(regular factory installed one)
Turn the radio off.
Turn the ignition on or to acc. w/key
Push (don't hold down) the "set" button
Set the hours & minutes with the seek & scan buttons.
If you go past, you'll have to wait and go back around cause it only counts forward.
Please don't forget to vote for best answer.