Please tell me the meaning and exact date of the equinox

I'm curious about the meaning of the equinox.

Is the date different every year because the equinox is also in the lunar calendar?

330 2018-03-21 Gentleman

Spring equinox refers to a season in the way of dividing it into 24 seasons. On this day, the length of day and night becomes the same. It's not the lunar calendar but the solar calendar, so March 21st is the equinox

Gentleman 8 years ago 0

A. 2

It is true to count the solar calendar, but it varies slightly every year. This year is March 21st. Last year was March 20.

Gentleman 8 years ago 0

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