How many weeks are there in a year?

Normal year 1 has 52 weeks 1 day, leap year 1 has 52 weeks and 2 days.

Zhou was called Seven Obsidian in ancient China and Seven Obsidian in Xia, Shang and Zhou Dynasties in China, referring to seven main stars, such as the sun, the moon and the five planets, which was an important part of astronomical astrology at that time. Week, also known as week, is a unit of time and the basis for making working days and rest days. As a time period, Zhou originated in Babylon.

On March 7th, 32 1, the worldwide week system was formally established in Rome. In different regions, the start time of a week is not exactly the same. In many English-speaking countries and Japan, it is Sunday. Egyptian Week begins on Saturday, and Chinese mainland is used to thinking that Monday is the start time.

Astronomical astrology

The nine planets originated from the ancient people's natural worship of ancient stars, which is the product of the combination of ancient mythology and astronomy. Astronomy has the theory of the Big Dipper. Their rankings are White Wolf, Black Giant Gate, Green Wen Qu, Huang Wu Lian Zhen, Six White Dance Songs and Seven Red Pojun. These seven stars are called the Big Dipper. There are two stars in "bucket handle", one is Right Bi and the other is Zuo Fu. Zuo Fu ranks eighth, Youbi ranks ninth, and the nine planets are made up of seven stars and two stars.

The nine planets in geomantic omen are said to be one white, two black, three green, four green, Huang Wu, six white, seven red, eight white and nine purple. The nine planets in Daoism refer to Tian Pengxing, Tian Ruixing, Tian Chongxing, Tianfu Star, Celestial Star, Tianxing Star, Tianzhu Star, Ren Tianxing and Tianying Star, and some people call the Big Dipper the Nine Planets after adding Zuo Fu and Youbi.