How do you differentiate between the Gregorian, Lunar, Lunar and Solar calendars?

Yang refers to the sun and yin refers to the taiyin (moon).

The solar calendar determines the calendar year according to the seasonal changes caused by the sun. The moon is the division of the year.

The lunar calendar determines the months according to the cycle of changes in the phases of the moon. The year is an accumulation of months.

The full name of the lunar calendar is "Taiyin Calendar" or "Pure Lunar Calendar". Lunar calendar based on the cycle of the moon, that is, the lunar month, because the ancients called the moon "Taiyin", so called "Taiyin calendar", referred to as the "lunar calendar". The exact date of the lunar calendar has been difficult to determine, but according to the oracle bones in a page of the oracle bone calendar to judge, the lunar calendar in the Yin Dynasty has been quite popular.

The main characteristics of the lunar calendar are: the length of the calendar month is determined by the celestial phenomena, namely, the moon phases, the big month is 30 days, the small month is 29 days, the average of the calendar month is roughly the same as the average length of the month of the solstice, 29.5306 days. The length of the year is only an integer multiple of the calendar month, and has nothing to do with the year of return. Therefore, the months of the lunar calendar are also independent of the seasons. The date of the lunar calendar indicates certain phases of the moon, i.e., the first day of the month is the first day of the month, i.e., the new moon; the fifteenth, sixteenth, or seventeenth day of the month is the full moon, i.e., the waning moon; the seventh or eighth day of the month is the first quarter moon; the twenty-second or twenty-third day of the month is the second quarter moon, etc., which was very convenient for the ancients to judge the date by virtue of the moon phases. And the change of the moon phase is the most easily visible celestial phenomenon, therefore, most of the calendars of various countries have the lunar calendar first and then the solar calendar. However, since the lunar calendar had nothing to do with the year of return, it did not harmonize with agricultural production and people's daily life, and was gradually phased out. Nowadays, with the exception of a few Islamic countries, which still use a lunar calendar called the "Hijri" for religious reasons, other countries have abandoned it.

Additionally, after the adoption of the Gregorian calendar in 1912, people referred to the Gregorian calendar as the "solar calendar", while the traditional "summer calendar", which coexisted in folklore, was commonly known as the "solar calendar". "The traditional summer calendar, which also exists in folklore, is commonly referred to as the "lunar calendar".

But the lunar calendar is not really a lunar calendar, but a "yin and yang calendar". It is a "yin-yang" calendar, in which leap months are added so that the average calendar year over a number of years also conforms to the cycle of seasonal changes. There is only one true lunar calendar left in the world, the Islamic calendar.

The solar calendar, also known as the Gregorian, solar, new, and western calendars, is also known as the Gregorian calendar. It is a calendar introduced by Pope Gregory XIII in 1582. After that year, the solar calendar replaced the Julian calendar (old calendar), which was introduced by the Roman Emperor Julius Caesar in 42 BC. The solar calendar counts the time that the earth goes around the sun as a year. Its length is 365 days, 5 hours, 48 minutes and 46 seconds. Since it is not a whole number, in order to equalize the length, some years have 366 days and are called "leap years", while other years have 365 days and are called "equal years". This calendar was wrong by about three days in every 10,000 years, three days more than the old Julian calendar, which was wrong by three days every four hundred years.

Because this calendar is based on the position of the Earth's distance from the sun, so its "twenty-four solar terms" are fixed: the first half of the solar terms in the first half of the month in the 6th, 21st, the second half of the month in the 8th, 23rd, and even if the difference is only a day or two.

Western calendar is the Ming Dynasty Wanli eight years (1580), by the Italian missionary Matteo Ricci into China. Ricci's "Western calendar" is the "Julian calendar". The "Celestial Calendar" practiced by the Taiping Heavenly Kingdom revolutionized the Chinese lunisolar calendar by adopting the solar calendar, but with some modifications. The "Celestial Calendar" included the original Chinese "Stem and Branches" and the "Week" (week) of the solar calendar, which can be called a combination of the Yin and Yang calendars. In terms of the Chinese calendar, the "Celestial Calendar" is a special calendar with a revolutionary spirit. After the Xinhai Revolution, from New Year's Day in 1912, the Republic of China and the solar calendar. September 27, 1949, the first plenary session of the Chinese People's Political Consultative Conference resolved: "Chinese people's * * * and the country's chronology using the AD". Since then, China has also adopted the AD calendar.

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How to harmonize the 11 days more in the Gregorian calendar than in the lunar calendar

The 12 lunar calendars have about 354 days, which is 11 days less than the Gregorian year. How does my country harmonize these days?

Because the Gregorian calendar is 365 days, and the lunar calendar since ancient times extends to the present day and the Gregorian calendar is far from the difference, so in our country's lunar calendar on the practice of leap year to coordinate the Gregorian calendar with the gap between the lunar calendar. So the lunar calendar has a leap month, every three years there is a leap year, that is, the folk saying: three years, two leap