Twenty-four solar terms concept

Twenty-four solar terms are special festivals in the calendar to express natural rhythm changes and establish "December construction". A year is divided into four seasons, three months in spring, summer, autumn and winter, and two solar terms in each month. Each solar term has its own unique meaning. Twenty-four solar terms accurately reflect the change of natural rhythm and play an extremely important role in people's daily life. It is not only a seasonal system that guides agricultural production, but also a folk system that contains rich folk customs. The twenty-four solar terms contain a long cultural connotation and historical accumulation, and are an important part of the long history and culture of the Chinese nation.