Is the constellation according to the lunar calendar or the Gregorian calendar?

The twelve constellations are calculated according to the Gregorian calendar.

When I first came into contact with the constellation, many people thought that the constellation was calculated according to the lunar calendar, that is, the lunar calendar. Actually, they are not. Constellations are calculated according to the solar calendar, that is, the new calendar, because constellations originated from astrology in the west, which is different from China. Their calendar is only a new calendar, not a lunar calendar. It is wrong to use the lunar calendar in China. I believe everyone already knows the 12 constellation. 12 constellations can be divided into 12 zodiac signs, which are arranged in the following order: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces. If you want to know what constellation you are, you must first know your birthday in the solar calendar, and then you can know your constellation according to the twelve constellations in the solar calendar. If you only know your own lunar calendar, you can find out when your birthday is in the solar calendar through the perpetual calendar.