Time of Starting (Note to Rule 6-3a) 

If the player arrives at his starting point, ready to play, within five minutes after his starting time, in the absence of circumstances that warrant waiving the penalty of disqualification as provided in Rule 33-7, the penalty for failure to start on time is loss of the first hole to be played in match play or two strokes in stroke play.

Penalty for lateness beyond five minutes is disqualification.