Is the constellation calculated according to the lunar calendar or the solar calendar?

Gregorian calendar, the specific date is divided as follows:

Capricorn12/22-119

Aquarius 1/20-2/ 18

Pisces 2/ 19-3/20

Aries 3/2 1-4/20

Taurus 4/2 1-5/20

Gemini 5/2 1-6/2 1

Cancer June 22-July 22

Leo July 23 to August 22

Virgo August 23-September 22

Libra 9/23- 10/22

Scorpio10/23-11/21

Sagittarius11/22-12/21

Now you can see which constellation you belong to!