March 20th, 2013. "Spring equinox ", the 4th small Spring season arrives

  In 2013, the season of "Spring equinox" arrives on March 20th  7:01 pm China time zone (+8). That is 7:01 am Eastern Time (-5) on March 20th.

    Celestial longitude: 0 degree. For most of the seasonal information please read this article.