I also have an issue with my recurring google calendar events. If the recurring event has a start time between 00:01 and 09:59, then the event shows up in the calendar with that start time plus 24hrs. So an Event on Monday at 07:00 will show up in the calendar on Tuesday at 07:00.
Also all day events start at 20:30. I wonder if this might be causing the time issues.
The recurring events show correctly with MMM-MyCalendar.