with the computer toggle, get to the time.
then use the right pin? that pokes out. (the left one is used to reset the trip odo) turn it right to make the time move forward, and left to make the time go back.
of course this is all iirc..
sorry its late, and i dun wanna go out to the garage to check. it's coooold out there, like just above freezing cold.. burr