Long summer is also called long summer.

1, and Changxia is also called Xia Meng, Early Summer, Early Summer, Huaixia and Xia Wei.

2. Long summer is the seventh solar term in the twenty-four solar terms of the lunar calendar and the first solar term in summer. When the sun reaches 45 degrees of the Yellow Meridian, it is a long summer, and the date is May 5 or May 6 of the Gregorian calendar every year.

The long summer indicates the change of seasons and the official start of summer season. After the long summer, the temperature in southern China will rise rapidly, and the rainfall and days of rainfall will increase significantly.