What kind of perpetual calendar is accurate?

A perpetual calendar is just a process for people to find a certain year, including many years. For example, if you want to know what day is February 1 2055, you can look up the perpetual calendar.

Generally, the lunar calendar is the basis of the lunar calendar, and the fortune calculated by China's eight diagrams and five elements usually takes a period of time. For example, if you get married this year and find a good day, just check this year's lunar calendar.

Perpetual calendar Baidu definition: Perpetual calendar is the oldest solar calendar in ancient legends of China. In order to commemorate the achievements of the compilers of perpetual calendars, this calendar was named "perpetual calendar".

Definition of the Gregorian calendar: The Gregorian calendar is an almanac that can simultaneously display Gregorian calendar, lunar calendar, dry calendar and other calendars, and has a large number of rules and contents related to seeking 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.