Reporting on Nscan times

Howdy!

I am on the hunt for a report that will show Nscan scans times for a singular past event with 1000+ attendees. While the attendance by performance report provides a nice overview, I am hoping to find a report (or analytics) that showcases specific times. Have any museums or other orgs tackled this question before? I see the attended date/time field in analytics but having trouble accurately bucking out the number of scans by 15 min/hour increments. 

Thanks,
Joe