Are the twelve constellations based on birthdays or dates of birth?

The following is the constellation date. Constellation dates are divided into time periods.

Twelve constellations date

Aries: 04/ 19-05/ 13

Taurus: May 6, 2000.

Gemini: 06/2 17/ 19

Cancer: 07/20-08/ 19

Lion: 08/20-09/ 15

Virgo: 09/ 16- 10/30

Libra:10/31-1/22

Scorpio:11/23-1129

Snake Man:11/30-12/17

Sagittarius:12/18-0118

Capricorn: 0119-02/15

Water bottle: 02/16-03/11

Pisces: 03/ 12-04/ 18

Constellation dates are divided according to the Gregorian calendar. First, you need to know your date of birth in Gregorian calendar, and then compare the above information. If you only know the date of birth of the lunar calendar, you can first convert it into the birthday of the solar calendar.