What does it mean to fish in the Gregorian calendar?

The old calendar means catching fish and shrimp in the water. Because it is bound into a book, it is also called an almanac. The main contents are the date table of the 24 solar terms, daily good and bad luck, zodiac fortune and so on. It is said that it was created by the Yellow Emperor, so it is called the Yellow Calendar.

In ancient times, the almanac issued by the government announced the year number, festivals and solar terms of the coming year, which reflected the objective laws of natural time changes and meteorological changes, guided the agricultural production of working people, and also served as government documents.