Calculate Total Time Spent on a Job with DateDiff

In this Microsoft Access tutorial, I will teach you how to calculate the difference between two times. You can use this for employee time clocks, job costing, or just about any database where you need to figure out the difference between a start time and an end time in minutes and/or hours.

Adam from Fort Dodge, IA (a Developer Student) asks: I have a series of jobs that have a start date/time and an end date/time. I need to be able to calculate the total time worked on each job so I can bill my customers accordingly. Additionally, sometimes the job might start on a Thursday and end on a Monday. I need to exclude weekends, after hours (5pm to 8am the next day) and lunch breaks (noon to 1pm). How do I do this?

Members

I'll show you how to add ranges of time to exclude from your calculations (such as when the business is closed, lunch hour, breaks, etc.) and exclude weekends.

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Links

Difference in Dates: https://599cd.com/DifferenceInDates
Aggregate Queries: https://599cd.com/Aggregate
DateDiff Function: https://599cd.com/DateDiff
IIF Function: https://599cd.com/IIF
NetWorkDays: https://599cd.com/NetWorkDaysAccess

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