What is the Gregorian calendar?

The almanac is a kind of almanac that can simultaneously display various calendars such as Gregorian calendar, lunar calendar and dry calendar, and has a large number of rules and contents related to good fortune and avoiding evil. In ancient times, almanac was calculated and published by Qin, so it was also called almanac. Its content guides the farming opportunities of Han working farmers, so it is also called the farmers' calendar. Han people are commonly known as general books. However, because the word "book" and "lose" in Tongshu are homophonic, it is also called "Tong Sheng" because of taboo.

Almanac, also called almanac, is a code of conduct followed by ancient emperors. It includes not only astronomy, meteorology, seasons, but also some taboos that people should abide by in their daily lives. Because only the emperor's family can use it, it is called almanac. After the Revolution of 1911, the imperial system was overthrown and the almanac was rewritten as an almanac.

In modern times, the main contents of the Gregorian calendar include: Gregorian calendar, lunar calendar and trunk calendar, twenty-four solar terms and Sunday (week), taboos, disasters, directions, fleeting time, traditional lunar calendar, nine planets in Kong Xuan and so on. Rich in content, different from each other because of its compilation and publication.