What day is the long summer this year?

The long summer of 2023 is on May 6th. Astronomically, long summer bid farewell to spring, which is the beginning of summer.

Twenty-four solar terms are a kind of calendar in ancient China, which is determined according to the position change of the sun on the ecliptic. Twenty-four solar terms include beginning of spring, rain, surprise, vernal equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, Dashu, beginning of autumn, Chushu, Bailu, Autumn Equinox, Cold Dew, First Frost, beginning of winter, Light Snow, Winter Solstice, Slight Cold and Severe Cold. Each solar term has its special significance and function, which reflects the observation and understanding of nature by ancient Chinese people.