How to calculate time difference between two cells in Excel

Question

I've time value in two columns in my sheet. Ex: Col A & B
In col C i want the time difference between time in A & B

Example :

But it is giving me seconds difference.
I've tried the formula =INT((B2-A2)*24) but i got hours alone.

My expected result is how many hours,min,seconds differed 01:20:52 in two cells.

How to get that?

Answer 1

将单元格公式设置为=b2-a2 （即应从较大的值中减去较小的值，反之亦然），并将该单元格的格式设置为Time或[h]:mm:ss