Excel Workday Formula

I have a formula in a cell that calculates times.
=WORKDAY($R3,INT(E3/$G$1)+1)
Column R3 is the start date.
E3 is number of hours a job takes to run
G1 is number of hours available

The formula is supposed to take the start date, add the number of hours a job is to run, divide it by the number of hours available to run and come up with a end date.

It used to work, however, now it is making all end dates the next day at 12:00 am.

Help

If E3 is less than G1, that's what the formula does. And assuming R3 is a date only (no time), it will always give a minight result.

I don't understand the formula in the context of what you want it to do.

Column S3 is the starting date and time. E3 is the number of hours. G1 is the number of available hours.

We want to take the starting date, hours, then divide by the number hours available to give us an ending date.

Hope this helps