Are the zodiac signs based on the lunar calendar or the solar calendar?

The zodiac is based on the lunar calendar.

The zodiac uses the lunar calendar, because the replacement of the zodiac is in beginning of spring, and beginning of spring looks at the lunar calendar.

China calendar is also called lunar calendar, and it is also called summer calendar or lunar calendar. The western calendar is generally called the Gregorian calendar, which is now widely used in the world.

The Gregorian calendar is called the Gregorian calendar, which is based on the time when the earth revolves around the sun for one year. Now the international Gregorian calendar is Gregorian calendar. The full name of the lunar calendar is the lunar calendar, which is based on the cycle of the moon orbiting the earth. The so-called hijri calendar used in Arabic history books is actually the lunar calendar. The lunar calendar that China is talking about now is actually a combination of yin and yang, which not only takes care of the changes of the moon's profit and loss, but also takes care of the cold and summer solar terms. Because there are solar terms changes in the calendar, which are closely related to agricultural planting activities, the "Lunar Calendar" plays an important role in the lives of China people, especially farmers. It is not only a calendar, but also the embodiment of thousands of years' life experience and wisdom of China people.