Find difference in times with criteria

[Kellis]

Hi all,

I am looking to see the time difference in hh:mm:ss in a list ordered by time oldest to newest where the criteria matches

Col A = dd/mm/yyy hh:mm:ss
Col B names (criteria)
I would like to know the time difference from one instance to the next where names are the same.

Any help much appreciated

 

[vletm]

Kellis
Would You upload a Sample file,
which would show exact Your needs?

 

[Kellis]

Kellis
Would You upload a Sample file,
which would show exact Your needs?

Thanks for replying,
I will need to do this later as currently working, cannot upload from the work computer.
basically, I need to find the time difference between the first name in the list 'Paul' and the second instance of 'Paul with date and time in column A, names in column B. and so on down the column.

Thanks