Neil Young's old song "Harvest Moon" seems to get some radio play every September. Young's sweet, gentle song is one of the things that mark the turning of the season for me. A Harvest Moon happens every autumn as the timing of the setting sun and the rising full moon happen so close together that, in times past; farmers used the moonlight to extend their harvest work days. These autumn moon rises are also sometimes called "Hunters Moon".
I think of this whole week as the time of the Harvest Moon, but technically this year in the United States, the Harvest Moon happens in the early morning hours of Sept. 23, only 5 1/2 hours after the autumnal equinox. Try to see it if you can.