There seems to be a bug where on the “mobile” display of the calendar/month view. For example:
http://www.friscotaphouse.com/events/
If you look at June 2nd, the correct events show (there are two of them). If you scale your browser down for the “mobile” display, you’ll see the same two events, plus a third incorrect event that is for exactly one month from today. So a June 2nd event, another June 2nd event, and then an erroneous July 2nd event.
I’ve tried removing all customized theme code, and this bug still exhibits itself. I’d also like to report that the list view always shows the correct events on the correct days, just like the calendar does at “desktop” size. It is only mobile-sized-calendar view that appends events one month into the future to the correct events.