In order to solve this problem, the method of adding "leap month" is adopted. The leap month occurred in June this year, which not only delayed Valentine's Day in China, but also delayed the Mid-Autumn Festival. In addition, the Lunar Mid-Autumn Festival generally occurs between September 7th and June 6th in the solar calendar 10, resulting in the calendar phenomenon that the Mid-Autumn Festival coincides with the National Day. If the lunar leap month is added before August, it will probably cause the Mid-Autumn National Day to "welcome".
Why is the Mid-Autumn Festival on August 15th?
Mid-Autumn Festival is a traditional festival in China, which falls on the 15th day of the eighth lunar month every year. Legend has it that it commemorates Chang 'e. The word "Mid-Autumn Festival" first appeared in Zhou Li. According to the ancient calendar of China, there are four seasons in a year, and each season has three months, which are called Meng Yue, Zhongyue and Yue Ji respectively. Because the second month of autumn is called Mid-Autumn Festival, and because the fifteenth day of the eighth lunar month is in the middle of August, it is called Mid-Autumn Festival.
It was not until the early years of the Tang Dynasty that the Mid-Autumn Festival became a fixed festival. The Book of the New Tang Dynasty ● Volume 15 ● Five Books on Rites and Music ● contains "Spring and Mid-Autumn Festival were released to Wen Yi and King Wu Chengwang" and "In the 19th year of Kaiyuan, Taigong Fu Shang Temple was set up, with Sean in Liu Hou. Mid-spring, Mid-Autumn Festival. Sacrifice, the system of sacrifice music is like a text. "
Refer to the above? Baidu Encyclopedia-Mid-Autumn Festival