Add or subtract time
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Add or subtract time
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Add time
3
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4:06
Subtract time
Help
Add or subtract time
Closed captions
Course summary
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Help summary—Add or subtract time
Course
Course summary
Add time
2.
Suppose that you want to know how many hours and
minutes it will take to complete two tasks. You estimate
that the first task will take 6 hours and 45 minutes and
the second task will take 9 hours and 30 minutes.
1. In cell B2 type 6:45, and in cell B3 type 9:30.
2. Type =B2+B3 in cell B4, and then press Enter.
3.
4.
5.
It will take 16 hours and 15 minutes to complete
the two tasks.
6.
You can also add up times by using AutoSum to sum
numbers. Click in cell B4. Then on the Home tab, click
AutoSum. The formula will look like this: =SUM(B2:B3).
Press Enter to get the result, 16 hours and 15 minutes.
Subtract time
See also
You know your start and end times at a volunteer
project, and want to know the elapsed time.
1.
In cell D2, subtract the end time from the start
time by typing the formula: =C2-B2, and then
pressing Enter.
We need to format cell D2 to get rid of “AM.”
Then on the Home tab, click Format > Format
Cells.
In the Format Cells box, click Custom in the
Category list.
In the Type list, click h:mm (for hours and
minutes), and then click OK. Now we see that
Richard worked 3 hours and 45 minutes.
To get the results for Joy and Leslie, copy the
formula by clicking in cell D2 and dragging to
cell D4. The formatting in cell D2 is copied
along with the formula.
•
•
In cell B2 type the start time, enter a space, and
then type “a” for AM or “p” for PM, and press Enter.
In cell C2, type the end time, including “a” or “p” as
appropriate, and press Enter. Type the other start
and end times for your friends Joy and Leslie.
•
•
•
Add or subtract time
Create or delete a custom number
format
TIME function
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