The Mid-Autumn Festival, also known as the Moon Festival, is celebrated in Yulin, China, on the 15th day of the eighth lunar month. This traditional festival typically falls in September or October of the Gregorian calendar, depending on the lunar cycle. The exact date varies each year, but it is consistently observed on the same day of the lunar calendar.

The Mid-Autumn Festival is a time for family reunions, moon观赏, and the sharing of mooncakes, a type of pastry filled with sweet or savory ingredients. The festival's origins date back to the Tang Dynasty, and it is now a national holiday in China. In Yulin, the celebration is particularly vibrant, with various cultural activities and traditional performances.

The timing of the Mid-Autumn Festival is significant for several reasons. Firstly, it is a time when the moon is at its fullest and brightest, symbolizing completeness and harmony. This celestial event is celebrated with mooncakes, which are thought to represent the moon itself. Secondly, the festival coincides with the autumn harvest, a time of abundance and thanksgiving. According to the Chinese lunar calendar, the eighth month is associated with the full moon and the harvest season.

Data from the Chinese Ministry of Culture indicates that the Mid-Autumn Festival is one of the most important traditional festivals in China, with a history of over 3,000 years. The festival is celebrated not only in Yulin but also across the country and in Chinese communities worldwide. In 2006, the Mid-Autumn Festival was officially recognized as a national intangible cultural heritage by the United Nations Educational, Scientific and Cultural Organization (UNESCO).

In Yulin, the festival is marked by a variety of activities, including lantern displays, dragon and lion dances, and traditional music performances. The city's streets are adorned with colorful lanterns, and families gather to enjoy mooncakes and tea under the full moon. The festival is a testament to the rich cultural heritage of Yulin and its people, who take great pride in preserving and celebrating their traditions.