Does the ninth lunar month have 30 days? Why are the lunar calendar dates not fixed?
The ninth month of the lunar calendar is the ninth month of the lunar calendar. So, let’s take a look at whether the ninth month of the lunar calendar has 30 days? Time always flies fast. In the blink of an eye, it is already September in the lunar calendar, which is also the last month of autumn. After this month, we will enter winter. If you want to know more about the ninth month of the lunar calendar, please follow Shui Mo Network!Does the ninth lunar month have 30 days?Whether the ninth month of the lunar calendar has 30 days depends mainly on whether September of that year is a long month or a short month.If the ninth month of the lunar calendar is a short month, then it does not have 30 days, but only 29 days. If the ninth month of the lunar calendar is a long month, then it will be 30 days long. Why are the lunar calendar dates not fixed?This is because the lunar calendar uses the time it takes for the moon to orbit the earth (29.53059 days) as one month, and we cannot set a 0.53059 day setting. Therefore, we set a long month to 30 days, a short month to 29 days (there is no 31 days), and a full year to 354 or 355 days. The size of the moon is different every year. Since the average number of days in a year is about 11 days less than the solar year (Gregorian calendar year), 7 leap months are set in 19 years. In a year with a leap month, there are 13 months and 383 or 384 days in a year. The leap month added after a certain month is called a leap month.According to the position of the sun, the solar year is divided into 24 solar terms to facilitate farming. The years are recorded using the combination of the Heavenly Stems and Earthly Branches, which repeat themselves every 60 years. According to legend, this calendar was created in the Xia Dynasty, so it is also called the Xia calendar. What is the Lunar Calendar?Lunar calendar, the traditional Chinese calendar. It is based on the changing cycle of the moon phases, with each lunar phase lasting one month; and a solar year is divided into 24 sections, forming the 24 solar terms. By referring to the solar year, the leap month is set to make the average calendar year consistent with the tropical year. The lunar calendar combines the lunar calendar with the solar calendar to form a lunisolar calendar.The lunar calendar is also known as the Xia calendar, the lunar calendar, the old calendar, the Chinese calendar, and the Chinese calendar. Because it used the "Xia Zheng", it was often called the Xia calendar in the old days. After 1970, the "Xia calendar" was renamed the "Lunar calendar". The lunar calendar is a lunar and solar calendar, and its years are divided into ordinary years and leap years. A normal year has twelve months; a leap year has thirteen months. Months are divided into long months and short months. Long months have thirty days, and short months have twenty-nine days. The average calendar month is equal to one synodic month. |
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