Why is January the first half and February the second half?

It means that 65438+10-June is the first half of the year and July-65438+February is the second half. In the first half of the year, 2 1 is a solar term every 6 days, and in the second half of the year, it is a solar term every 8 days and 23 days, with a general difference of one or two days.

Twenty-four solar terms were summed up by the working people in ancient China, which reflected the law of the solar cycle, and the ancients carried out agricultural activities accordingly. On May 20th, 2006, "Twenty-four solar terms" as a folk custom project was approved by the State Council to be included in the first batch of national intangible cultural heritage list.

Climate type

Twenty-four solar terms are the product of agricultural civilization and the knowledge system formed by ancient ancestors by observing celestial movement combined with geographical climate and phenological laws. Agricultural production is closely related to geographical and climatic resources, and superior geographical and climatic resources are important conditions for the birth of agricultural civilization. China is located in the east of Asia-Europe continent and the west coast of the Pacific Ocean, with great differences in thermal properties between land and sea, forming the most typical monsoon climate in the world. Monsoon climate is a mixture of continental climate and maritime climate.

Baidu encyclopedia-24 solar terms