Is the Spring Equinox based on the lunar calendar or the solar calendar? Does the vernal equinox represent the beginning of spring?

Is the Spring Equinox based on the lunar calendar or the solar calendar? Does the vernal equinox represent the beginning of spring?
The Spring Equinox is one of the 24 solar terms. So, let’s take a look at whether the Spring Equinox is distinguished according to the lunar calendar or the solar calendar? Life is rarely smooth sailing, and it is inevitable to encounter some difficulties and adversities. What kind of fortune and good or bad luck will there be in the second month of the lunar calendar? Please pay attention to the special topic of February 2021 of the lunar calendar on Shuimoxiansheng.com!

Is the Spring Equinox based on the lunar calendar or the solar calendar?

The vernal equinox is distinguished according to the time of the Gregorian calendar.
The Spring Equinox falls between March 19th and 22nd of the Gregorian calendar every year.
The "Twenty-Four Solar Terms" reflect the impact of the sun on the earth, so they belong to the category of the solar calendar. All calendars around the world that use the 24 solar terms are calculated according to the Gregorian calendar.
It is a knowledge system formed by observing the annual movement of the sun and understanding the changing patterns of seasons, climate, phenology, etc. throughout the year. It not only plays a guiding role in agricultural production, but also affects the ancient people's food, clothing, housing, transportation, and even cultural concepts.
The 24 solar terms are: Beginning of Spring, Rain Water, Waking of Insects, Vernal Equinox, Pure Brightness, Grain Rain, Beginning of Summer, Grain Full, Grain in Ear, Summer Solstice, Lesser Heat, Greater Heat, Beginning of Autumn, End of Heat, White Dew, Autumnal Equinox, Cold Dew, Frost Descent, Beginning of Winter, Light Snow, Heavy Snow, Winter Solstice, Lesser Cold, Greater Cold. This is the twenty-four sections that the ancients divided the whole year into based on the changes in the sun's position on the ecliptic (ecliptic longitude) and the order of evolution of the ground climate.
Therefore, the vernal equinox is distinguished according to the solar calendar.

Does the vernal equinox represent the beginning of spring?

No. The vernal equinox does not represent the beginning of spring, but rather it means that half of spring has passed.
Only the Beginning of Spring represents the beginning of spring.
The Beginning of Spring is the first day of spring. "Li" means "beginning" in ancient Chinese texts; "chun" means warmth and growth. The 24 solar terms were originally established based on the movement of stars. When the handle of the Big Dipper points to the position of Yin, it is the beginning of spring. The current 24 solar terms are divided according to the "solar ecliptic longitude". When the sun reaches 315° of the ecliptic longitude, it is the beginning of spring. The beginning of spring marks the end of winter, when everything is dormant, and the arrival of spring, when everything revives

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