At the vernal equinox and autumnal equinox, is the time of day and night equal everywhere on the earth?

In the vernal equinox and autumnal equinox, theoretically, the time of day and night is equal anywhere on the earth. At the vernal equinox, theoretically, the length of the world from day to night is equal. After the vernal equinox, the days in the northern hemisphere are getting longer and shorter, and the nights in the southern hemisphere are getting shorter and shorter. At the vernal equinox, there are no extreme days and nights in the world. After the vernal equinox, it began to be extremely daytime near the North Pole, and its scope gradually expanded. Near the Antarctic, the extreme day ends and the extreme night begins, and the scope gradually expands.

When the vernal equinox comes, the climate is mild, the rain is abundant and the sun is shining. Winter crops in most parts of China enter the spring growth stage, which is also the sowing time of early rice.

Extended data:

The vernal equinox is the fourth solar term in the "24 solar terms". "The vernal equinox, Yin and Yang. So it's hot and cold day and night. " A word "fen" tells the boundary between day and night, cold and heat. At this time, the longitude of the sun is 0 degrees and the position of the sun is above the equator. According to the lunar calendar, "it refers to the vernal equinox, which is about Sunday. The northern and southern hemispheres are equally divided day and night, which is also half of spring, so it is called the vernal equinox." The vernal equinox usually refers to the moment when the sun's apparent yellow meridian is at 0, around February 15 of the lunar calendar (about March 19 ~22 in the Gregorian calendar).