It is the full moon that occurs closest to the autumnal equinox. It is also the official start of fall. The specific date of the harvest moon varies from year to year and can occur either in September or October.
The harvest moon rises almost immediately after sunset for several nights, allowing farmers to work a little later than other evenings. This season is unique and breathtaking to watch among other full moons that come in across the year.
The harvest moon appears bigger, brighter, and more colourful than the full moon because it has a powerful mystique. The moon’s orbit around the earth is not a perfect circle, and the Harvest Moon’s distance from Earth differs from year to year.
The exact time of the full 2021 Harvest Moon is September 20 at 23:54 Universal time. In the US timezones this translates to 7:54 p.m. EDT, 8:54 p.m. ADT, 6:54 p.m. CDT, 4:54 p.m. PDT, 3:54 p.m Alaskan Time, 5:54 p.m. MDT, and 1:54 p.m. Hawaiian Time.