Reap what you have sewn as the Harvest Moon rises on September 20 at 5:54 p.m. our time. The Harvest Moon is the name given to the Full Moon in either September or October, depending on the timing of the Fall Equinox. Whichever month’s Full Moon is closest to the Equinox wins the title. In 2021, it’s September.
This is also called Corn Moon, Fruit Moon, Barley Moon, and Hungry Ghost Moon. And don’t forget, the first day of Fall is Wednesday.