By the time you rise on Wednesday the March Full Moon will have passed - the full moon is 3:27 am MDT. Native Americans kept track of the seasons by giving the month in which the full moon occurs a distinctive name. March has the distinction of being called the Full Worm Moon. As the ground starts to thaw with warming temperatures earthworms began to appear signaling the return of the robins. Other tribes referred to this, the last full moon of winter, as the Full Crust Moon or the Full Crow Moon. It was also known as the Lenten Moon to the settlers.