2014-10-25 is immediately followed by 2014-10-27. Instead of the missing day calendar has March 27^th^, 2011 doubled. See the attached screenshots.

I checked this with both Qt 5.3.2 and 5.4.1.

With Qt 5.3.2, there is no visual selection for days from 2011-03-28 to 2014-10-25, inclusive. clicked and doubleClicked signals provide correct date parameter, but selectedDate is set to the day preceding one that was clicked.

With Qt 5.4.1, visual selection works fine, but both signal parameters and selectedDate point to the day following the clicked one.

CalendarClickTest.zip contains minimal test project.