FSCalendar for Mac

From Freak Software:

FSCalendar is an application designed to be quick opening and easy to use. Its only function is to display dates in a wall calendar style. This application is great if you need to look up a day in the future to find the day of the week it is on. Drop it into the dock for easy access.

FSCalendar is in a sheet which drops down from behind the menubar. There are a few different ways to quickly move from month to month or year to year. Use the navigation buttons, the little arrows, or type into the field and press return. For easy return to the current month, simply click the Current button.