Click on the calendar icon, and click on any date to select the date.
A single click on the title bar will allow you to scroll the year and month. A double click provides year ranges e.g. 2000-2009. Alternatively, the date can be keyed in by entering the format mm-dd-yyyy (e.g. 09-21-2000).
Other Navigation Tips:
Use left and right arrows to navigate months
Or click on title (month name)...
... and select a month. Click on the title again...