Hi Snvlsfoal,

You probably won't want to do this via field coding - which is what's required for a formula. See: Date and Time Calculations in a Table and Add Or Subtract Two Time Periods in my Microsoft Word Date Calculation Tutorial: https://www.msofficeforums.com/word/...-tutorial.html. Do read the document's introductory material.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]