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How to calculate hours between times after midnight in Excel?

Author: Xiaoyang Last Modified: 2024-08-30

Supposing you have a time table to record your work time, the time in Column A is the start time of today and time in Column B is the end time of the following day. Normally, if you calculate the time difference between the two times by directly minus "=B2-A2", it will not display the correct result as left screenshot shown. How could you calculate the hours between two times after midnight in Excel correctly?
normal formula to calculate hours between times after midnight will get incorrect result

Calculate hours between two times after midnight with formula

arrow blue right bubble Calculate hours between two times after midnight with formula

To get the correct calculated result between two times over midnight, you can apply the following formula:

1. Enter this formula: =(B2-A2+(B2<A2))*24 (A2 is the earlier time, B2 is the later time, you can change them as you need) into a blank cell which beside your time data, see screenshot:

Calculate hours between two times after midnight with a formula

2. Then drag the fill handle to the cells that you want to fill this formula, and the time differences between two times after midnight have been calculated at once, see screenshot:

drag and fill the formula to other cells

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