Harvest Moon The full Moon nearest the autumnal equinox (September 29 this year) is called the Harvest Moon. This full Moon helps the harvest by providing more light at the right time than do other full Moons. • Usually the Moon rises about 50 minutes later each day, but around the time of the autumnal equinox, it rises only about 30 minutes later in the United States—even less in Canada. • Gardeners and farmers can take advantage of the moonlight at this time of year and continue their day's work in harvesting crops. Read more about why we give importance to this Moon in our article "Shine On, Harvest Moon." The September full Moon is also known as the Corn Moon or Barley Moon. See our September guide for full Moon times, best days by this Moon, a video, and more. Dreams of a full Moon predict unusual success in matters of love. A harvest Moon means that you will get unusually good returns on investments of energy or money.