vba to exclude Saturday and Sunday from date calculation

I have a spreadsheet where I need to calculate the number of minutes between to time fields and to include weekdays in the calculation IF the oldest time in the queue is a day prior to the current day.   How would I do this? the formula is in ( i12).  columns g & H are hidden I have  attached a sample of the spreadsheet

Thank You
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byundtConnect With a Mentor Commented:
The NETWORKDAYS function returns the number of weekdays between two dates. If both dates are the same, it returns 1. So neglecting any correction for starting time, you might use:

The above formula is probably not sophisticated enough for your real problem. Among other things, it can't return a negative number. And it ignores your special handling for Mondays. But if you can give some sample data and expected results, I can fine-tune the formula to suit.

As an added bonus, NETWORKDAYS can exclude a list of holidays that you choose from the calculation. That feature may or may not come into play for your real situation--but for many problems it does.
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