Is beginning of spring the first day of June 9th or the last day of May 9th?

This day in beginning of spring is not the last day of May 9th, but the first day of June 9th. On the last day of May 9th, beginning of spring was called "Spring Beats Five Kyubi no Youko". On the first day of June 9th, the beginning of spring is called spring beating six nine heads.

As the saying goes, "A day's plan lies in the morning, and a year's plan lies in the spring". For farmers, spring is a very important solar term, which not only represents the coming of cold winter, but also indicates that spring sowing is about to begin. In the past, because there was no weather forecast, farmers' food depended on the weather, so it was necessary to know the weather. Therefore, the wise ancients summed up many agricultural proverbs to help farmers guide their agricultural activities.

The so-called "May 9" and "June 9" are actually the fifth nine days and the sixth nine days when the weather is cold. On the day of the winter solstice solar term, it is the first day of counting nine. Nine days later, winter is over. "May 9th" refers to the 45th day after the solar term from the winter solstice (including the day from the winter solstice), and the 69th day is the 46th day after the solar term from the winter solstice. The reason why there is such a one-day difference is because it is affected by the winter solstice time.