When is the spring equinox in 2022?

1, the vernal equinox is usually on March 19~22 in Gregorian calendar, and the vernal equinox in 2022 is on March 20, 2022 in Gregorian calendar and on Sunday, February 18 in lunar calendar. The vernal equinox is the fourth traditional solar term, with equal time between day and night. The sun shines directly at the equator of the earth, at which time the longitude of the sun is 0 degrees.

2. In ancient times, the vernal equinox was also called "Japan-China", "Day-Night Equinox" and "Midspring Moon", because in ancient times, 90 days between beginning of spring and Changchun were divided into spring, and the vernal equinox just divided these 90 days.