Figure out occurence of overlapping date & time

Old thread but this is useful. There is however a difference between generating the number of overlapping events, and the number of Simultaneous overlapping events. The example shown in the thread is limited to only those events occurring simultaneously at the start of the event, but omits those that are still simultaneous (concurrent) after the start of the event. I have been trying to work through this issue myself with a related application regarding Pump reliability and overlapping out of service times. I need to know how many overlapping events (SOLVED), simultaneous overlapping events, and the cumulative time durations of those simultaneous overlapping events for each case of 2, 3, 4, 5, etc. simultaneous overlapping events. See attached. Any help would be greatly appreciated. There is a much shorter way to get simple overlapping events in my attachment. At the moment I'm a bit stuck on the simultaneous bit and summing the time of them.

-FPEPRO