Look at the calendar in the App Store screen shot. It's February 27th and 4/5 of the month view is showing days that have already passed. The week ahead is totally lost because the next week is in March.
UX-wise is there something disorienting, taboo, or just plain illegal about centering the current week in the middle or top 1/3 of the view? Because this just sucks. And it never changes. It happens in every calendar app that has a "month" view, and it's the most unusable the last week of the month (which is, oh, 25% of the time you use it).
Apple is just as guilty (looking at you, OSX Calendar).