Autumn Equinox 2021 Meaning
So in 2021 autumn starts on. For astronomers the equinox marks the end of summer and the start of autumn meaning fall has officially fallen. Why Does The Autumnal Equinox Fall On Different Dates Solstice And Equinox Winter Solstice December Solstice The equinoxes signify the length of night and the length of day almost exactly equal 12-hour day. Autumn equinox 2021 meaning . The word equinox comes from Latin and means equal night.