On the Home Panel in the top left, click on the drop menu marked Goto.
Select Go to This Month, and the current month will be displayed.



To view a different month, you can select it by clicking on the name of the desired month in the Mini Months section, or by selecting it from the year view.
It's also possible to switch to month view from the Week or Day views simply by selecting the Month tab at the top of the Calendar Panel.