Thread: [Solved] Custom Duration Formula
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Old 05-11-2016, 05:11 AM
JulieS JulieS is offline Windows 7 64bit Office 2013
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Join Date: Dec 2011
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Try:
ProjDateDiff([Start4],[Start3],"standard")

Assuming you are using the Standdard calendar as the Project calendar. If not, substitute your calendar name.
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