Same day in lunar calendar

The full name of the lunar calendar is the lunar calendar or the pure lunar calendar. The lunar calendar is based on the cycle of the moon, which is the new moon. Because the ancients called the moon "lunar calendar", it was called "lunar calendar" for short. It is difficult to determine the exact date of the lunar calendar, but judging from the Oracle bones in Oracle Bone Inscriptions, the lunar calendar was quite popular in the Yin Dynasty. The main feature of the lunar calendar is that the length of the calendar month is determined according to the astronomical phenomena, that is, the phase of the moon, and the average length of the calendar month is roughly the same as that of Wang Shuoyue. 5306 days, etc. The length of a year is only an integer multiple of a calendar month, which has nothing to do with the tropical year. Therefore, the month of the lunar calendar has nothing to do with the four seasons. The date of the lunar calendar indicates a certain moon phase, that is, the first day is the new moon, that is, the new moon; The fifteenth, sixteenth or seventeenth is the full moon, which means hope; The seventh and eighth days are the first quarter moon; Twenty-two and twenty-three are the last quarter moons, and it is very convenient for the ancients to judge the date by the phase of the moon. The change of the moon phase is the easiest astronomical phenomenon to see, so most of the calendars in various countries have the lunar calendar first and then the solar calendar. However, because the lunar calendar has nothing to do with the tropical year, it is not harmonious with agricultural production and people's daily life, and it was gradually eliminated. Today, except for a few Islamic countries that still use a lunar calendar called "hijri" for religious reasons, all other countries have given up. In addition,. 19 12 after China adopted the Gregorian calendar to arrange the months, people called it the Gregorian calendar, while the traditional summer calendar coexisting with the people was popularly called the lunar calendar. The solar calendar is also called Gregorian calendar, solar calendar, new calendar and western calendar. This is the 1582 calendar implemented by Pope Gregory XIII. A year later, the solar calendar replaced the "julian calendar" implemented by the Roman emperor Julius Caesar in 42 BC. The solar calendar takes one year as the time for the earth to go around the sun. Its length is 365 days, 5 hours, 48 minutes and 46 seconds. Because it is not an integer, in order to balance the length, some years are 366 days, called "leap year"; Some years are 365 days and are called "average years". This calendar has an error of about three days every 10,000 years, which is three days every 400 years compared with the old julian calendar. Because this calendar depends on the distance between the earth and the sun, its "24 solar terms" are fixed: the solar terms in the first half of the year are mostly on the 6th and 2 1 of each month, and in the second half of the year, they are mostly on the 8th and 23rd of each month, even if the difference is only one or two days. The western calendar was introduced into China by Italian missionary Matteo Ricci during the Wanli period of the Ming Dynasty (1580). Matteo Ricci's Tai Xi Li belongs to julian calendar. The "calendar" implemented by the Taiping Heavenly Kingdom revolutionized the lunar calendar in China. It adopts the solar calendar, but it has also been revised. The "calendar" includes the original "branches and branches" in China and the "worship" (week) in the solar calendar, which can be described as a combined calendar of yin and yang. "Calendar" is a special calendar with revolutionary spirit in China calendar. After the Revolution of 1911, from New Year's Day of 19 12, the calendar of the Republic of China and the solar calendar were adopted. 1On September 27th, 949, the first plenary session of China People's Political Consultative Conference decided: "People's Republic of China (PRC) adopts AD in calendar years". Since then, China has also adopted the calendar.