Many of our days of work are less than 24hrs. I heard that you could deduct the difference between 24hrs and the partial day. Example: duty in at noon on first day and duty out at noon on last day. Because the first and last day was less than 24 hrs you get to deduct the difference, a total of 24hrs x hr per deim. Is this right? What is the govt. standard on per deim per hour?