What was the name of the day before in beginning of spring?

The day before was the beginning of an amazing day in spring.

In the old yellow calendar, people believed in the theory of five elements, and thought that everything had its inherent attributes and constantly changed naturally. It was first used in medicine, and then gradually extended to all things in the world. So there is a view that the sun never shines in the five elements.

According to the characteristics of natural changes of solar terms, people conclude that winter belongs to water, spring belongs to wood, summer belongs to fire and autumn belongs to gold. Therefore, according to the law of natural change, there will be no water after beginning of spring comes to the Spring Festival, so it is called winter extinction. So, of course, the first day of spring is the last day.