The difference between China and Hongkong Huangli calendar.

China calendar and Hongkong calendar have the following main differences:

* * * Different schools. * * China Gregorian calendar is an almanac that can display various calendars such as Gregorian calendar, lunar calendar and trunk calendar, in which there are a lot of rules and contents related to good fortune and avoiding evil. Hong Kong's yellow calendar is mainly influenced by western astrology and calendars, showing Gregorian calendar, lunar calendar and trunk calendar.

* * * The algorithm is different. * * The algorithm of China Gregorian calendar is based on the observation and calculation of ancient astronomers, and combined with philosophical thoughts such as Yin-Yang and Five Elements. Hong Kong Gregorian calendar tends to use modern astronomical and mathematical methods for calculation.

Generally speaking, there are some differences in the types and algorithms of calendars in China and Hongkong, but both of them are devoted to providing detailed date and time information and related divination and prediction.