20 13 165438+ what day is the ninth day of the lunar calendar?

According to Hancheng's inquiry. Com, lunar calendar 20 13 1 1.9 is the seventh day of October 20 13, and its main branch is the first day of Guihai in four years.

The lunar calendar, that is, the current traditional calendar in China, belongs to the yin-yang calendar, that is, the lunar calendar and the solar calendar. According to the change cycle of the moon phases, each moon phase changes to one month, taking the tropical year of the sun as the length of a year, and adding 24 solar terms and setting leap months to make the average calendar year adapt to the tropical year. The combination of lunar calendar and solar calendar in lunar calendar forms the method of combining yin and yang. Because of the use of "Xia Zheng", it was called Li Xia in ancient times. The current lunar calendar was renamed as "Summer Calendar" after 1970.