Online event attendance data help

Copper Contributor
Hi everyone, can someone help me out?
I have the following dataset with the date and time when different people joined and left an event. Some people joined, left and then rejoined various times.
I would like to calculate the attendance duration of each person.
Thank you
1 Reply

@Hrobino 

Instead of using that oops image, your data set will be more meaningful if you replaced the names with Name01, Name02.....etc