What is the date of vernal equinox 202 1? What is the date of vernal equinox 202 1?

The vernal equinox time of 1 and 202 1: March 20th 17:37: 19, the eighth day of the second lunar month (big) 202 1, Saturday. The vernal equinox is one of the solar terms reflecting the changes of the four seasons. In ancient China, beginning of spring, Changxia, beginning of autumn and beginning of winter were used to indicate the beginning of the four seasons. The spring equinox season, like the summer solstice, the autumn equinox and the winter solstice, is the middle of a season. The spring equinox is the beginning of spring in the northern hemisphere. Overwintering crops in most parts of China have entered the spring growth stage.

2. Definition of vernal equinox: The vernal equinox usually refers to the moment when the meridian of the sun is at 0, about the fifth day of the second month of the lunar calendar (about March 20th to 2 1 in the Gregorian calendar).

3. In terms of time period, it also refers to the position where the sun is located between 0 and 15, that is, from the vernal equinox to Tomb-Sweeping Day, and the Gregorian calendar is between March 20th and April 5th.