Why not just multiply by the hours per workday:-
=NETWORKDAYS(A1,B1,G1:G8)*9

G1 - G8 is my list of holidays

Mike


"Mashuganah" wrote:

I need to calculate the number of work hours between a start and end time.
The task may stretch across several days, including weekends and holidays.
Only the work hours should be counted. Work hours are 8 am - 5 pm, Mon - Fri.

How can this be done?

While NETWORKDAYS provides days, I need hours.