The vernal equinox is the first solar term in spring. What is its nickname?

The vernal equinox is the fourth solar term in spring. In ancient times, it was also called "Japan-China" and "day and night".

The vernal equinox is the dividing line between early cold and warm. At this time, the average daily temperature in all parts of the country rose steadily to above 0℃, the severe cold has passed, and it warmed up and entered the "fast lane", which is the fastest time for the temperature to climb in a year. On this day, the sun shines directly on the equator, and day and night are almost equal. Then the direct sunlight position gradually moved northward, and the days were long and the nights were short. At the vernal equinox, except for the Qinghai-Tibet Plateau, Northeast China, Northwest China and North China, China enters spring.

Around the vernal equinox, the sun is shining and the vegetation grows, and people begin to feel sleepy in spring. Going to bed early and getting up early, and taking a good nap during this period will help the human body to keep yin and yang peaceful. Flying kites is the best choice. "When the vernal equinox arrives, the eggs look good", and the vertical egg game is a reserved program of the vernal equinox. Because the length of day and night in the northern and southern hemispheres is equal at the vernal equinox, and the earth axis and orbital plane are in a state of relative stress balance, eggs are easier to stand upright.