Example:
A B C
TIMESHEET
In out Hours
8:00 17:15 8:15 [Hours is calculated, B - A, "In", "Out", formatted as
hh:mm)
9:00 17:00 8:00

Total xxxx

PROBLEM:
If I use SUM() to calculate xxxx the number is wrong.
What function can I use to come up with the correct total of 16:15 ?

Thanks a lot,
Thomas