What is the geographical autumnal equinox in 2020? Tuesday, September 22nd.

The autumnal equinox is one of the solar terms in China. Before the autumnal equinox solar terms come, people will pay attention to the arrival time of the autumnal equinox. So what is the autumnal equinox in 2020? What is eating autumn vegetables at the autumn equinox?

What is the geographical autumnal equinox in 2020: Tuesday, September 22, 2020, the sixth day of the eighth lunar month.

China's ancient book "The Spring and Autumn is Full of Dew, Yin and Yang Come in and Out" says: The autumn equinox, Yin and Yang are half-phase, so it is cold and summer day and night. The autumnal equinox divides in two. The autumnal equinox has two meanings: first, the time between day and night is equal. On this day, the sun reached the longitude 180 degrees, and directly hit the equator of the earth. Therefore, in most parts of the world, 24 hours are divided equally between day and night, each being 12 hours. After the autumnal equinox, the direct point of the sun began to enter the southern hemisphere from the equator, and the northern hemisphere began to have shorter days and longer nights, and shorter days and shorter nights in a day; Near the North Pole, there are long nights and stars for six months in a year. Second, the climate changed from hot to cold. According to the division of seasons in ancient China, which started with beginning of spring, Changxia, beginning of autumn and beginning of winter, the autumnal equinox is divided into 90 days in autumn and divided equally in autumn.