January 29, 2025 will usher in the Lunar New Year, the Year of the Snake, but there will be no New Year's Eve in 2025. After the New Year's Eve, there will be the New Year's Day. It is reported that from 2025 to 2029, New Year's Eve will be "New Year's Eve" for five c

January 29, 2025 will usher in the Lunar New Year, the Year of the Snake, but there will be no New Year's Eve in 2025. After the New Year's Eve, there will be the New Year's Day.

It is reported that from 2025 to 2029, New Year's Eve will be "New Year's Eve" for five consecutive years. These days are: January 28, 2025, February 16, 2026, February 5, 2027, January 25, 2028, and February 12, 2029. Where did the New Year's Eve go?

There is no New Year's Eve, it's all the moon's fault

"The occurrence of such a situation is related to the calculation rules of our country's lunar calendar. In our country's lunar calendar, the lunar months are mainly based on the cycle of the moon's waxing and waning." Wang Kechao, director of science popularization at the Purple Mountain Observatory of the Chinese Academy of Sciences, said that the moon orbits the earth During one rotation, the moon takes on different appearances when viewed from the Earth. When the geocentric ecliptic longitudes of the moon and the sun are equal, the moon cannot be seen on the earth. The moon phase at this moment is called the new moon, and the day is called the new moon. It is the first day of each lunar month and is called the first day of the lunar calendar. Therefore, the first day of the lunar month occurs every lunar month.

Wang Kechao introduced that the interval from one new moon to the next is one month in the lunar calendar, which is called the synodic month, and the average length is 29.53 days. In fact, the length of the synodic month is not fixed, it is more than 29 days. The shortest time in this century is 29.27 days, and the longest time is 29.82 days. Rounding up, the lunar month is divided into a big month and a small month, with the former having 30 days and the latter having 29 days. If the twelfth lunar month happens to coincide with the small lunar month, the New Year's Eve will be "absent".

The arrangement of the lunar month depends on the actual moon phase, and the arrangement of the big and small months is different from the Gregorian calendar month. Generally speaking, the proportion of intervals between the two is higher, and sometimes there are two consecutive big months or two consecutive small months. "According to long-term statistics, the proportion of New Year's Eve celebrations is slightly higher. It is normal to have no New Year's Eve for five consecutive years, but it is relatively rare." Wang Kechao said.

Netizen: People born on the 30th of the Lunar New Year will not be able to celebrate their birthdays in 5 years

Comprehensive Xinhuanet, Xiaoxiang Morning News, Sina Weibo