Beginning of spring is not only the first of the 24 solar terms, but also an important festival. Astronomically speaking, it marks the beginning of spring. The solar term in beginning of spring usually begins on February 4th or 5th and ends on February19th or 20th. Beginning of spring, like Changsha, beginning of autumn and beginning of winter, is a solar term reflecting seasonal changes. Beginning of spring is a slightly turning solar term. Although this turning point is not obvious, the trend is that the weather begins to pick up, the coldest period is basically over, and people begin to smell the breath of early spring.