No Chinese New Year’s Eve for the Next 5 Years
Chinese New Year’s Eve Absent for the Next 5 Years
The Year of the Snake in the Chinese calendar begins on January 29, 2025. However, there will be no Chinese New Year’s Eve (年三十) for the next five years. Instead, the 29th day of the lunar month will directly transition into the first day of the Chinese New Year. The next 年三十 will only reappear in 2030, a phenomenon explained by the rules of the traditional Chinese calendar.
The last Chinese New Year’s Eve occurred on February 9, 2024, during the Year of the Dragon, marking the final 年三十 for several years. From 2025 to 2029, the eve of the Chinese New Year will fall on the 29th day of the lunar month. These dates are:
• 2025: January 28
• 2026: February 16
• 2027: February 5
• 2028: January 25
• 2029: February 12
The absence of 年三十 is due to the calculation of the Chinese calendar, which is based on the moon’s phases. Each lunar month is determined by the cycle of the moon’s waxing and waning, known in astronomy as the synodic month. This results in months that occasionally lack a 30th day.
2025年1月29日是农历蛇年的大年初一，但未来五年将不会有大年三十，这意味着每年的腊月二十九之后直接进入大年初一。“大年三十”要等到2030年才能再次出现，这与中国农历的历法规则密切相关。
2024年2月9日的农历龙年除夕是近几年最后一次出现大年三十。从2025年到2029年，连续五年的除夕都会落在腊月二十九，具体日期分别为：2025年1月28日、2026年2月16日、2027年2月5日、2028年1月25日和2029年2月12日。
根据农历的计算规则，农历月份是依据月亮的盈亏变化周期来确定的，用以计算每个月的天数，这在天文学上被称为“朔望月周期”。
