I am trying to prepare an employee time off log for 20 employees. I have read
through the discussions, but can't seem to find what I need. Any help would
be most appreciated.

Our employees are allowed 120 vacation hours and they work from 8am to 5pm.
When someone takes off a full day, only 8 hours needs to be charged against
him, instead of 9. I need a formula that will display only 8 hours used
instead of 9 when I subtract the two time cells of one containing 8:00, the
other containing 17:00. I also need this formula to calculate half days, such
as when an employee leaves maybe from 10 to 2, for example. Everything I have
tried displays either 0.00, FALSE, or the correct number appears but then it
messes up my other formula for "time allowed minus time used equals time
remaining." All of my cells are set to the h:mm setting.

I have my cells set up as c14 as the time leaving (or 8:00 if taking off a
full day) and d14 is the time returning (or 5:00, end of the day) and e14
being the difference between the two cells.