Add And Subtract Date & Time To Return One Sum

Oct 31, 2008

I am trying to add/subtract dates and times to return one sum; but I only want to count the work week (5 days M-F) and work day (8 hrs.) 8am- 4pm. This is to compute the actual turn around time for a certain process.

i.e.:
Date ReceivedTime ReceivedDate ApprovedTime Approved10/1/20081:00 PM10/15/20089:00 AM

The total hours this process should equate to is: 9days and 6hours.

way to achieve this sum?

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For example
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I have written this:

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STOPSTARTDURATION

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