Limit calendar event to 1 day?

I know this is probably a long shot with out a plug in. However I was wondering if anyone knows a way I can stop a calendar event from pushing into the next day?

What I mean is, currently, if you make an event say on the 15th, and it starts at 9pm and ends at 1am on the 19th, it is displayed on both days. We have lots of late night events, (See 90% of our events) so this becomes quite the issue.

Because this right here, is simply unusable,