Sorry Swesty but in 99 cases out of 100 you are wrong. It most definitely is DOJ and if more than one on the same day then it is oldest first. When it comes to promotion the 65 year old with 200 hours would not be in the frame and would there fore be bypassed until the next, fully qualified for command, pilot was reached. In seniority based systems it has been the accepted fairest way of dealing with pilots with the same DOJ.