How to convert time difference between two times to number (hours/minutes/seconds) in Excel?

Normally, when calculating time difference with subtraction in Excel, you will get the result as hh:mm or hh:mm:ss format. For directly converting time difference to number such as hours/minutes/seconds only after calculating, methods in this article will do you a favor.

Convert time difference to number (hours/minutes/seconds) with formulas
Easily convert time difference to hours/minutes/seconds with an amazing tool

Convert time difference to number (hours/minutes/seconds) with formulas

Please do as follows to convert time difference to number.

Convert time difference to hours

Select a blank cell (in this case, I select C2), enter the below formula into it and press the Enter key. Then drag the AutoFill Handle down to get all time differences in hours format. See screenshot:

=(B2-A2)*24

Convert time difference to minutes

For converting time difference to minutes, please use the below formula.

=(B2-A2)*1440

Convert time difference to seconds

The below formula can help you directly convert time difference to seconds format as below screenshot shown.

=(B2-A2)*86400

Note: In the above formulas. A2 contains the start time, and B2 contains the end time. You can change them as you need.

Easily convert time difference to hours/minutes/seconds with an amazing tool

Here highly recommend the Date & Time helper of Kutools for Excel to quickly calculate time differences and display as hours, minutes or seconds with several click only.

1. Select a blank cell to output the time difference, click Kutools > Formula Helper >Date & Time helper.

2. In the Date & Time Helper dialog box, please configure as follows.

2.1) Click the Difference tab;
2.2) In the Date1 box, select the cell containing the start time;
2.3) In the Date2 box, select the cell containing the end time;
2.4) In the Output result type drop down list, select Hour, Minute or Second as you need;
2.5) Click OK. See screenshot:

Then you will get the time difference displaying in hour, minute or second between specified times.
Tips: A formula will inserted into the selected cell automatically, you can drag the AutoFill Handle down to get the other time differences.

If you want to have a free trial (30-day) of this utility, please click to download it, and then go to apply the operation according above steps.

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