Autumnal Equinox and Harvest Moon, 2021
There are two days during the year with 12 equal hours of daylight and darkness, the Vernal and Autumnal Equinoxes. The Vernal Equinox heralds the beginning of Spring and the Autumnal Equinox, Autumn. The Autumnal Equinox for this year occurs on Wednesday, September 22, 2021 at 7:21 pm UTC (3:21 pm EDT). Many significant astronomical[…]