In Mountain DST, the vernal equinox is 10:30pm 3/19.
The Sky This Week, 2016 March 15 – 23 — Naval Oceanography Portal
The vernal equinox occurs on the 20th at 12:30 am EDT. This is the moment when the Sun’s ecliptic longitude reaches zero degrees. For many ancient cultures this moment marked the beginning of a new year ….
Full Moon, which occurs on the 23rd at 8:01 am Eastern Daylight Time. The Full Moon of March is popularly known as the Worm Moon, Crow Moon, Sap Moon, or Lenten Moon.
The Sky This Week, 2016 March 15 – 23 — Naval Oceanography Portal