Saturday, March 31, 2018: Full Sap Moon.
This full Moon occurs at 8:37 A.M. EDT (5:37 A.M. PDT). It is the second full Moon in March 2018 and therefore is commonly called a Blue Moon. In 2018, there are two Blue Moons (when calculated in Eastern Time), one on January 31 and the other on March 31. February 2018 had no Full Moon.