I am attempting to calculate the date and time between two date/time columns. I have a formula which I'm running which is giving me a result, but it's not the result I expect and I am not sure why.

See below. The difference between my Start Time and Finish Time is 3 minutes (11:45am to 11:48am), however the formula is returning a result of over 12 minutes?

SharePoint Date Calculation Formula

SharePoint Columns

  • Try this solution which will work fine in your case Commented Nov 9, 2022 at 7:36

1 Answer 1


You can try to use this formula:

==IF(ISBLANK([Finish Time]),"",IF(INT([Finish Time]-[Start Time])>=0,(INT(([Finish Time]-[Start Time])*1440)-MOD(INT(([Finish Time]-[Start Time])*1440),60))/60&" Hours "&MOD(INT(([Finish Time]-[Start Time])*1440),60)&" Minutes","-"&(INT(([Start Time]-[Finish Time])*1440)-MOD(INT(([Start Time]-[Finish Time])*1440),60))/60&" Hours "&"-"&MOD(INT(([Start Time]-[Finish Time])*1440),60)&" Minutes"))

the result

For more information, please refer to:

  • Hi there - this formula is giving me an error when applied to the calculated column stating it contains syntax which is not supported.
    – MartyDubs
    Commented Nov 13, 2022 at 23:43
  • Sorry, I have edit my answer, please try it. Commented Nov 14, 2022 at 6:22
  • Has the problem been solved? If you have any questions, please feel free to contact Commented Nov 23, 2022 at 6:03

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