今年七夕节，本世纪最晚！

Core Viewpoint - The Qixi Festival, a traditional Chinese holiday, will occur on August 29 this year, marking the latest date for the festival in the 21st century due to the lunar calendar's adjustments [2]. Lunar Calendar and Qixi Festival - The lunar calendar is based on the moon's cycles and is adjusted with leap months to align with the solar year, resulting in an average lunar year of 354 or 355 days, which is about 11 days shorter than the solar year [1]. - The year of the Snake (乙巳蛇年) is a leap year with an extra month, making it 384 days long, which is 19 days longer than the Gregorian year of 2025 [2]. - The Qixi Festival's date varies each year, with last year's festival on August 10 and this year's on August 29, influenced by the leap month [2]. Future Dates of Qixi Festival - The latest Qixi Festival in the 21st century will occur this year, with another occurrence expected in 2055. The earliest dates in this century were in 2006 (July 31), with future early dates in 2044 and 2082 [2]. Cultural Significance - The Qixi Festival is celebrated as a romantic holiday with customs such as Qiqiao (skill display), book drying, and moon worship, emphasizing the unique charm of traditional festivals [2].