What is the first of the 24 solar terms?

Spring has begun. Among the 24 solar terms, the first solar term is beginning of spring, and the "beginning of spring" solar term will be ushered in at 22: 59 on February 3rd. On this festival, the earth began to thaw and the stinging insects gradually woke up. "beginning of spring", also called "Da Chun", is the first of the 24 solar terms and the beginning of four o'clock in a year.