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How to add or sum times over 24 hours in Excel?

Normally, when adding or summing times in Excel, you will get the finally calculated result within 24 hours as the left screenshot shown. How about adding or summing times over 24 hours to display the real result? This article can help you.

Add or sum times over 24 hours by changing the format of result cell


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arrow blue right bubble Add or sum times over 24 hours by changing the format of result cell

You just need to change the format of result cell to achieve it. Please do as follows.

1. After summing the times, select and right click the result cell, then select Format Cells from the right-clicking menu. See screenshot:

2. In the Format Cells dialog box, go to the Number tab, select Custom in the Category box, then enter [HH]:MM or [HH]:MM:SS into the Type box, and finally click the OK button. See screenshot:

Now the result of summing times is displayed over 24 hours as below screenshot shown.

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  • To post as a guest, your comment is unpublished.
    Sherri Gordon · 3 months ago
    What would you use if you had to sum these? I just need the total hours but am unable to find a solution. Ideas?



    30039:12:56


    26472:48:24


    27641:05:20


    28721:38:08


    27766:17:52


    24510:17:52


    28532:04:48


    31366:30:24


    27428:28:56


    31151:30:48


    25722:07:28


    24653:21:36
  • To post as a guest, your comment is unpublished.
    peza · 9 months ago
    Thank you!!
  • To post as a guest, your comment is unpublished.
    Christine · 1 years ago
    And it save my problem also. So easy when you know how! :-)
  • To post as a guest, your comment is unpublished.
    Grace · 1 years ago
    This thread solved my problem. Thanks a lot