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Hugh Finerty's avatar
Hugh Finerty
Copper Contributor
Nov 10, 2017
Solved

Calculate difference between two times in Excel for Mac

I had to separate the times from the date columns that were formatted as date and time. After I separated out the times, I applied the simple formula =N2-O2 to calculate the time differential. But, it is returning an infinite number of #######.  I uploaded the file for help. I am trying to find the time differential, minutes and seconds, between columns N and O. Any help would be appreciated. Thanks! Hugh

6 Replies

  • As far as I recall one can present Negative time in Excel for Mac. 
    Goto Tools > Options > Calculation > mark 1904 date system.
    This should enable the presentaion of negative times.
    -----------------------
    Michael (Micky) Avidan

    • SergeiBaklan's avatar
      SergeiBaklan
      Diamond Contributor

      Yes, that works. But, IMHO, with formula is more safe.

  • SergeiBaklan's avatar
    SergeiBaklan
    Diamond Contributor

    Hi Hugh,

     

    Better for the difference of time to use

    =H2-G2

    and apply custom format

    [hh]:mm:ss

    You only will have kind of formatting error if the time is negative (received time is earlier than start time)

      • Hugh Finerty's avatar
        Hugh Finerty
        Copper Contributor

        Any suggestions as to how to deal with the ones that arrived earlier than scheduled? The other ones worked perfectly.

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