you can create a new filter on the define filter tab and filter by termination date and termination time, but I'm not sure how the output will sort as you will be spanning 2 days. If RR insists on breaking up your data by day, you could export to excel and sort from there.
The caveat there is that a direct export from report runner to excel does not produce a useable format. you will need to export as lotus 1-2-3 (wks) and import that into excel.
At one point there was information on the aspect website regarding the conversion of report runner reports to a free version of seagate info desktop (7.0 I think), but I recall having issues with non-standard filters working properly when we went that route. Not sure if the download is free (or even available) anymore though.
We continued to use Report runner/writer up until last month when we migrated to another ACD platform, and while it lack something in the realm of stability, it was still quite flexible and fairly intuitive. If you haven't already, try poking around in the help files. There are quite a few useful nuggets contained therein.
good luck,
sm