Is the zodiac calculated according to the lunar calendar or the solar calendar, and the animal year is calculated according to the lunar calendar or the solar calendar?

The zodiac is calculated according to the lunar calendar, and the animal year is calculated according to the lunar calendar.

The zodiac is calculated according to the lunar calendar. As to whether the zodiac is counted from beginning of spring or the first day of the first month, there is a great controversy between folk and folk experts. The official history takes the first day of the first month of the Spring King as the start date of the New Year. In modern times, officials also regard the first day of the first month as the beginning of the year of the zodiac. Many folk customs all over the country take the first day of the first month as the starting point of the zodiac year. For example, the custom of "tying a red rope and wearing red underwear" has been handed down since midnight on New Year's Eve. In China, beginning of spring is the beginning of a year.