From which day did the days become shorter and shorter?

After the autumnal equinox, the days are getting shorter and shorter.

The autumnal equinox is the sixteenth of the twenty-four solar terms. The autumnal equinox is exactly the midpoint of the ninety days in autumn. Starting from the autumnal equinox, the days in the northern hemisphere will be shorter and the nights will be longer.

Besides dividing the day and night equally, there is another meaning of dividing the day and night equally. After the autumnal equinox, the position of direct sunlight moves south, and the days in the northern hemisphere become shorter, the nights become longer, the temperature difference between day and night increases, and the temperature drops day by day.

The autumn moon is also a festival to worship the moon.

In ancient times, the autumnal equinox was once a traditional "Festival of Sacrificing the Moon". For example, in ancient times, there was a saying that "the sun is sacrificed in spring and the moon is sacrificed in autumn". According to textual research, the original "Moon Festival" was set on the day of "Autumn Equinox", but there is not always a full moon because of the different days of August in the lunar calendar every year. And the moon without the moon is a big spoil the fun. Therefore, the Mid-Autumn Festival was later transferred from the Autumn Equinox to the Mid-Autumn Festival and fixed on August 15.

In China, the traditional worship of the moon is generally based on the family. To attend Yue Bai, a priest (in charge of work), a eulogy (equivalent to the host) and several deacons (the priest's assistant) are selected. Usually, older female elders or housewives serve as priests.

Refer to the above? People's Network-Autumn Half Before the Equinox Reunion Festival? From then on, the days are short and the nights are long.