I actually googled the science to get the answer and then realized that you posted the date below the image lol. March 20 if anyone is confused 

Quote from: blackbeard on March 13, 2014, 12:20:49 am

When is the website being released?

Precisely when the Sun reaches a point in the constellation of Pisces known as the First Point of Aries -- along the x-axis of our solar system.  At the Vernal Equinox when days and nights are of equal length.  At that instant the sun will appear to cross the celestial equator, the projection of the earth’s equator on the sky, heading northward. 

i.e. the First Day of Spring!