How to calculate time in excel?

Question

I have to compare the time elapsed between the time of the call and the arrival at the scene for a project. I have two columns with the format : 2013-09-01 10:51:00.000 I used this formula

=INT(H2-F2)&" days, "&INT(((H2-F2)-INT(H2-F2))*24)&" hours, "&INT((((H2-F2)*24)-INT((H2-F2)*24))*60)&" min"

But i get an error.

Answer 1

Your formula works for me (assuming H2 >= F2) but to simplify, you can get same result with this version

=INT(H2-F2)&" days, "&TEXT(H2-F2,"h"" hours, ""m"" min""")

If your formula or this one doesn't work, I suggest that you might have invalid time values, check that you don't have extra spaces or characters

see screenshot