Im trying to find out how am i going to calculation a production line of 30 people and then i need to calculate against the finished production product database workings.

Tough im trying to make something acurate we work 8hours a day so 1 day isnt 24 hours, and then we dont work on Saturdays an Sundays so i need to skip them too, and there are public holidays etc. Which means if I find a way to do the mentioned situation I can calculate The Delivery dates of when the products will finish.

Thanks in Advance.