21/03/2023
The vernal equinox is one of the twenty-four solar terms and the fourth solar term in spring.
The vernal equinox is of great significance in astronomy. On the day of the vernal equinox, the sun shines directly on the equator, and the day and night are equally divided in the northern and southern hemispheres. In terms of climate, there are also obvious characteristics. After the vernal equinox, China has entered a bright spring except for the Qinghai-Tibet Plateau, Northeast China, Northwest China and the northern part of North China.
The "fen" of the vernal equinox has two meanings, one is "seasonal equinox", the traditional spring is from the beginning of spring to the beginning of summer, and the vernal equinox day is in the two solar terms, which just divides spring equally; the other meaning is "equal day and night". ", on the day of the vernal equinox, the sun shines directly on the equator, and the day and night are equal in length, each of which is 12 hours.
The vernal equinox climate is characterized by warm and sunny weather. During this season, Chinese folks have customs such as flying kites, eating spring vegetables, and standing eggs.