When does spring begin?

Beginning of spring, 4 February, 1986. According to relevant public information, 1986 beginning of spring is on February 4th of the lunar calendar and the 26th of the twelfth lunar month. Beginning of spring is the first of the 24 solar terms. Standing means beginning, and spring represents warmth and growth. Twenty-four solar terms were originally formulated according to the changes of stars. When the bucket handle of the Big Dipper points to the shade, it is beginning of spring.