Does the constellation refer to the solar calendar or the lunar calendar?

It is calculated according to the solar calendar. The calculation method is as follows:

Aries (03.2 1-04.20)

Taurus (04.2 1-05.20)

Gemini (05.2 1-06.5438+0)

Cancer: (06.22-07.22)

Leo: (07.23-08.22)

Virgo: (08.23-09.22)

Libra: (09.23- 10.22)

Scorpio: (10.23-11.21)

Sagittarius: (11.22-12.438+0)

Capricorn: (12.22-01.19)

Aquarius: (0 1.20-02. 18)

Pisces: (02. 19-03.20)