Subtracting Times

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» Subtracting Times

CATEGORY: Excel Date & Time Formulas

VERSIONS: All Microsoft Excel Versions

Problem:

Finding the interval between each pair of start and end times in columns A & B. An error occurs when the end time is "earlier" than the start time, resulting in a negative result.

Solution:

Use an IF statement to determine which of the two values is the "earliest", and then subtract accordingly:
=B2-A2+IF(A2>B2,1)

Example:

Time1___Time2____Result
10:00___17:00____7:00
17:00___9:00_____16:00
12:00___15:00____3:00

Screenshot // Subtracting Times

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READER COMMENTS (view all comments)

wrote on December 31, 1969 19:00 EST

hi,

The formula does work well. However, if i have a situation of start time at 19:00pm and end time at 1:00am (past midnight). The result should be 6 hr but it return a value of 17. is there any formula to accommodate this?

subtracting times
neilmacm wrote on March 10, 2006 11:34 EST

Hope this helps with your problem.

=G10-F10+IF(F10>G10,24)

Calculation of total working times
Nam wrote on December 31, 1969 19:00 EST

Hi,

I have a problem when I do sums of hours for whole month. The number goes beyond 12 hours. What have I to do to have total number of working hours (biger number than 12). Thanks

292 wrote on December 31, 1969 19:00 EST

THIS IS GREAT, BUT NOW HOW DO I GET THE TOTAL HOURS FOR ONE WEEK? THE =SUM THING DOES NOT WORK (SORRY, JUST LEARNING ALL THIS...)

time
problem wrote on December 31, 1969 19:00 EST

hi...m trying to calculate flight times....
i have departing time from one city and i have to calculate the arrival time in another city....which means i have to take time zone difference in account...thanx a bunch

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