How many important festivals are there in China a year?

There are 18 traditional festivals in China.

Traditional festivals in China include 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).

Extended data:

This festival has developed into the Tang Dynasty and has been liberated from the mysterious atmosphere of primitive worship and taboo. Become a type of entertainment etiquette and a real festive occasion. Since then, festivals have become cheerful and festive, rich and colorful, and many sports and recreational activities have appeared, which soon became a fashion. These customs continue to develop and continue.

The summer calendar produced in Xia and Shang Dynasties takes the moon's profit and loss period (now called the first lunar month) as a month, and a year is divided into twelve months, starting with the day when the moon is not seen (the first lunar month) and taking the return period from winter to the sun (now called the tropic year or the solar year, later called the solar year) as a year, and setting leap months to adjust the lunar year.

On the eve of the founding of New China,1September 27th, 949, China People's Political Consultative Conference officially designated the Lunar New Year as the "Spring Festival", so many people still call it the Spring Festival.

References:

China Traditional Festival-Baidu Encyclopedia