Another year, at the Dragon Boat Festival,
On the occasion of the Dragon Boat Festival
Wanshan Group
To leaders at all levels who have long been concerned with supporting the development
Friends, partners and new and old customers from all walks of life,
And the majority of cadres and employees
To pay high tribute!
Offer you and your family the most sincere
Greetings and blessings!
I wish you all: Dragon Boat Festival, well-being, safe and auspicious!
Astronomical experts said that this year's Dragon Boat Festival is a little special. It is one of the three latest Dragon Boat Festivals in the 21st century.
The Dragon Boat Festival is fixed every year on the fifth day of the fifth month of the lunar calendar, but its date in the solar calendar is very variable. The reason for this change is "leap month".
Zhao Zhiheng, an astronomy education expert and a director of the Tianjin Astronomical Society, said that the traditional lunar calendar adopted by China for thousands of years is actually a combination of yin and yang, both considering the return of the solar calendar directly related to the sun and the lunar calendar that changes with the moon phase. New Moon. An average moon is 29.5306 days, and the total of 12 moons is 354 days or 355 days, which is about 11 days away from the return year (about 365.25 days). It has been more than one month after 3 years of accumulation.
In order to solve the contradiction between the two, the ancients adopted the method of setting up "Leap Moon". The current method of "setting leap" in the lunar calendar is "seven leaps in nineteen years", that is, every 2 to 3 years, the month must be increased by one month, and the additional month is called "leap month". The rule of "setting a leap" is based on twenty-four solar terms.
The Lunar Year of the Rat is a leap year, adding a "Leap April". This "Leap April" starts from May 23 of the Gregorian calendar and ends on June 20 of the Gregorian calendar. Affected by "Leap April", since then, the corresponding lunar festivals in the year of the Gengzi Rat, such as the Dragon Boat Festival, will be delayed by 18 days in the Gregorian calendar compared to last year. The solar calendar date corresponding to the Dragon Boat Festival last year was June 7, and the solar calendar date corresponding to the Dragon Boat Festival this year naturally fell on June 25.
Zhao Zhiheng said that there are three times of the latest Dragon Boat Festival in the 100th century in the 21st century, which are 2001, 2020 and 2058 respectively, and the corresponding Gregorian dates are all June 25. The Dragon Boat Festival is not the latest on June 25 of the Gregorian calendar, and the latest is on June 26 of the Gregorian calendar, such as 1906.
ps: Part of the text in this article comes from People's Daily
