February 4th, February 26th.

entering the spring refers to entering the spring. In China, there are usually solar terms and temperature methods for seasonal division. In the traditional 24 solar terms, beginning of spring is the beginning of spring, so the time of entering the spring according to the solar terms is February 4. If it has been divided according to the temperature method for five consecutive days, the average temperature rises above 11℃ for the beginning of spring, so the time of entering the spring according to the temperature method is February 26.

Spring begins in beginning of spring, and beginning of spring is the time when the yang is born. Everything is here and gradually recovers.