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How to add or subtract times to get hours/minutes/seconds in Excel?

In general, summing or subtracting time will get the time format such as hh:mm:ss, but in some cases, you just want to sum or subtract time to get hours or minutes or seconds only, how can you quickly handle it in Excel?

Sum or subtract times to get hours/minutes/seconds with formulas and Format Cell function

Sum or subtract times to get decimal hours/minutes/seconds with Kutools for Excel good idea3


good ideaConvert Time

Kutools' Convert Time utility can quickly convert a time to decimal hours, minutes, seconds.
doc convert time 1
Time to decimal hours
Time to decimal minutes
Time to decimal seconds
doc convert time 2
doc convert time 3
doc convert time 4

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arrow blue right bubble Sum or subtract times to get hours/minutes/seconds with formulas and Format Cell function


Kutools for Excel, with more than 120 handy Excel functions, enhance your working efficiency and save your working time.

After free installing Kutools for Excel, please do as below:

In Excel, you can add the times first and then format the cells to hours/minutes/seconds.

1. Select a blank cell and type =SUM(A2:B2), and then drag auto fill handle over the cells you need to apply this formula, see screenshot:

doc add times to get hours 1doc arrow right 1doc add times to get hours 2

2. Then keep the summing cells selected, and right click to select Format Cells from the context menu.
doc add times to get hours 3

3. Then in the Format Cells dialog, under Number tab, click Custom in the Category section, and then go to type [hh] into the Type textbox in right section. See screenshot:
doc add times to get hours 4

4. Click OK, and now the summing results have been format as hours only.

doc add times to get hours 5doc arrow right 1doc add times to get hours 6

Tip: If you want to format cells as minutes, type [mm] into Type textbox, and if you format cells as seconds, type [ss] into Type textbox.


arrow blue right bubble Sum or subtract times to get decimal hours/minutes/seconds with Kutools for Excel

If you want to sum time and then get the results as decimal hours, minutes or seconds, you can use Kutools for Excel’s Convert Time function.

1. Select a blank cell and type =SUM(A2:B2), and then drag the autofill handle over cells to sum up time. See screenshot:

doc add times to get hours 1doc arrow right 1doc add times to get hours 2

2. Keep results selected, and click Kutools > Content > Convert Time, and select an option you need from the sub context menu. See screenshot:
doc add times to get hours 7

Then you can see the cells are formatted to decimal hours, minutes or seconds.

Convert to decimal hours                                  Convert to decimal minutes                        Convert to decimal seconds

doc add times to get hours 8doc add times to get hours 9doc add times to get hours 10

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