Is July 13 the beginning of autumn?

July 13 is not beginning of autumn Day, and beginning of autumn Day is August 7th or 8th in the Gregorian calendar every year.

According to the astronom

July 13 is not beginning of autumn Day, and beginning of autumn Day is August 7th or 8th in the Gregorian calendar every year.

According to the astronomical almanac of China, beginning of autumn is located at the time when the sun runs to 135 degrees on August 7 or 8 of the Gregorian calendar every year. "Twenty-four solar terms" said: "Autumn is also a struggle, and things gather here." "Autumn" means that summer is cool, which means the beginning of autumn. When you arrive in beginning of autumn, the plane tree will definitely begin to shed its leaves, which is why there is an idiom "When you lose a leaf, you will know autumn".

Beginning of autumn is the13rd solar term among the 24 solar terms in the lunar calendar, and it is also the first solar term in autumn, which marks the official start of the Meng and autumn seasons: "Autumn" means that summer is cool. When we arrived in beginning of autumn, the phoenix tree began to shed its leaves, so there is an idiom "Autumn is known by falling leaves". Literally, the word "autumn" consists of "valley" and "fire", indicating the maturity of five grains. Autumn is the transitional season when the weather turns from hot to cold, and then from cold to cold.