20 13 ll month 18 what is the lunar calendar?

2013165438+ 10/8 Gregorian calendar, 20 13 65438+ 10/8 lunar calendar 65438+/. Year: Guinian, the zodiac is a snake, Guihaiyue, Wuzi Day. The daily fetal god occupies the side: outside the bed, due north, and the five elements: except the position. Rush: Ma Chong (noon) Shanan.

Basic calendar

Calendar is a rule to measure a long time interval, judge climate change and predict the arrival of seasons according to the natural laws of astronomical changes. According to the calendar year and month, it is divided into solar calendar, lunar calendar and yin-yang calendar. There are three kinds of calendars: lunar calendar, solar calendar and yin-yang calendar. In the lunar calendar, its basic calendar rules have been gradually improved and formed by generations, and its form has continued to this day.

The calendar with the moon as the basic unit is the lunar calendar, and the calendar with the solar year as the basic unit is the solar calendar. The lunar calendar is a calendar based on the summer calendar (lunar calendar) and the solar calendar. The summer calendar, also known as the lunar calendar, is a kind of lunar calendar, also known as the lunar calendar, which is based on the law that the moon revolves around the earth.

Take the moon's orbit around the earth as a month, that is, take the new moon as the basis for determining the calendar month. A month in the summer calendar is called "Shuowangyue". The first day of each month is a new moon, and the fifteenth day is a new moon. The "new moon" is the average period of the moon's profit and loss.