Which solar term is the autumnal equinox? Which solar term is the autumnal equinox?

1, the autumnal equinox is the sixteenth of the twenty-four solar terms.

This is the fourth solar term in autumn. The date of the autumnal equinox is September 22-24 in the Gregorian calendar every year. On the day of the autumnal equinox, the sun shines almost directly on the equator of the earth, and the length of day and night is the same all over the world, and the autumnal equinox is just in the middle of 90 days in autumn, which means "equal share", so it is called the autumnal equinox.