Wrong display last day

The architecture of long events is being revamped in the next major release, and this will be addressed then.

Right now, an event that extends, for example, from November 5th to 7th will end internally on November 8th at midnight. So the problem you’re seeing is that your event’s apparent end date is actually off by a day. You can work around this by setting an end time; e.g., having the event end at 5pm on the last day.

But yes, it’s a bit problematic.