Those solar terms are traditional festivals.

The traditional festivals in China are: New Year's Eve (the last day of the twelfth lunar month), Spring Festival (the first day of the first month), Lantern Festival (the fifteenth day of the first month), Cold Food Festival (the day before Tomb-Sweeping Day), Tomb-Sweeping Day (the solar calendar: around April 5th), Shangsi Festival (March 3rd), Dragon Boat Festival (May 5th) and Chinese Valentine's Day (July 7th).

1, New Year's Eve (the last day of the twelfth lunar month)

Because it often falls on the 29th or 30th day of the twelfth lunar month in summer, it is also called New Year's Eve, which is one of the most important traditional festivals in China. People attach great importance to it. Every household is busy cleaning the courtyard, welcoming ancestors home for the New Year, and offering sacrifices with rice cakes and three sacrifices.

2. Spring Festival (the first day of the first month)

Commonly known as "New Year", the traditional names are New Year, New Year's Day, Teana and New Year's Day, and they are also called "New Year's Day", "New Year's Day" and "New Year's Day" verbally. People in China have celebrated the Spring Festival for at least 4000 years. In the folk, the Spring Festival in the old traditional sense refers to the sacrificial furnace from the 23rd or 23rd or 24th of the twelfth lunar month in La Worship to the 19th of the first month. In modern times, people set the Spring Festival on the first day of the first lunar month, but it generally doesn't end until the fifteenth day of the first lunar month (Shangyuan Festival).

3. Lantern Festival (15th day of the first month)

Also known as Shangyuan Festival, Xiaoyuanyuan Festival, Yuanxi Festival or Lantern Festival, it is the 15th day of the first lunar month and the last important festival in China Spring Festival custom. The first month is the first month of the lunar calendar. The ancients called "night", so the fifteenth day of the first full moon in a year was called Lantern Festival.

Since ancient times, the custom of Lantern Festival has been based on the warm and festive custom of watching lanterns. Traditional customs include going out to enjoy the moon, lighting lanterns and setting off flames, liking solve riddles on the lanterns, eating Yuanxiao and pulling rabbit lanterns. In addition, in many places, traditional folk performances, such as playing dragon lanterns, playing lions, walking on stilts, boating, yangko dancing and playing Taiping drums, have all joined the Lantern Festival.

4. Cold Food Festival (the day before Tomb-Sweeping Day)

105 solstice is one or two days before Tomb-Sweeping Day after the winter in the summer calendar. When the first day of the day is a holiday, smoking is forbidden and only cold food is eaten. In the development of later generations, the customs of sweeping, climbing, swinging, cuju, crochet and cockfighting were gradually increased. The Cold Food Festival lasted for more than 2,000 years and was once called the largest folk festival in China. Cold Food Festival is the only traditional festival named after food customs in China.

5. Tomb-Sweeping Day (Gregorian calendar: around April 5)

Also known as the outing festival, it is at the turn of mid-spring and late spring. Tomb-Sweeping Day is a traditional festival in China, and it is also one of the most important sacrificial festivals. It is a day to sweep graves and worship ancestors. Tomb-Sweeping Day is a traditional festival of the Chinese nation, which started in the Zhou Dynasty and has a history of more than 2,500 years. Through the historical development and evolution, Tomb-Sweeping Day has extremely rich connotations, and different customs have been formed in different places, with sweeping graves to worship ancestors and hiking as the basic themes.