It turns out the top, right, bottom, and left read more...
today is 2013.6.15
(March 31, 2012)
Ideally, the equinoxes and solstices would be appear on the calendar as a month-day alignment exactly on the top, right, bottom, and left positions. This, however, would not be possible for a static calendar as the days of the equinoxes and soltices vary a little bit.