Long summer solar energy is hot in summer.

Long summer, May 5-7.

Xiaoman, between May 20th and 22nd.

Miscanthus, June 5-7.

Summer solstice, June 2 1-22.

Little summer, July 6 -8.

High temperature in summer, July 22nd to 24th.

Solar terms refer to the twenty-four solar terms and climate, which is a supplementary calendar formulated by China in ancient times to guide farming, and is the crystallization of the long-term experience and wisdom of the working people of the Han nationality. Since China was an agricultural society in ancient times, agriculture needed to have a strict understanding of the operation of the sun, and farming was carried out entirely according to the sun. Therefore, the "twenty-four solar terms" that reflect the solar cycle alone are added to the calendar as the standard for determining leap months. China's orthodox 24 solar terms are based on Henan. China's lunar calendar is a combination of yin and yang, which is based on the movement of the sun and the moon, so adding 24 solar terms can better reflect the cycle of the sun's movement.

Law of solar terms:

Beginning of spring 5 was knocked out at 3 o'clock and retreated at 3 o'clock.

At 1: 15, Changxia received the harvest at 9: 35.

The awn seeds are retired for two days, and the summer is asked at five o'clock on the third day.

Take a rest for three days in five days, and take a rest for one week in beginning of autumn Millennium for six days.

Six days plus six hours in cold dew, six days and seven o'clock tour in beginning of winter.

Snow was harvested from 4: 00 on the 6th to 9: 00 on the 5th.