What's the difference between the vernal equinox and beginning of spring?

The difference between the vernal equinox and beginning of spring is as follows:

1 has different meanings. The vernal equinox refers to the equal division of day and night, each of which is 12 hour; In ancient times, it was spring from long summer in beginning of spring, and the vernal equinox happened to be in the three months of spring, and the spring was equally divided. Beginning of spring is one of the important traditional festivals in China. "Li" means "start". Since the Qin Dynasty, China has always regarded beginning of spring as the beginning of the Meng Chun season.

2. The time is different. The vernal equinox usually refers to the moment when the sun's ecliptic is at 0, which is around February 15 of the lunar calendar every year (March 20-2 1 of the Gregorian calendar). Beginning of spring is the first of the 24 solar terms in the lunar calendar. Beginning of spring is divided from astronomy, that is, when the sun reaches longitude 3 15. The time is February 3rd, 4th and 5th every year.

3. The climate is different. Vernal equinox is an important solar term. The northern and southern hemispheres are equally divided day and night, which also has obvious characteristics in climate. At the vernal equinox, except the Qinghai-Tibet Plateau, the northeast, the northwest and the northern part of North China, China entered a beautiful spring. After beginning of spring, the temperature rose, and most parts of the country began a busy spring ploughing season. Since the beginning of the beginning of spring solar term, westerly jet, the southern branch of East Asia, began to weaken, accompanied by an obvious warming process.