How the Chinese zodiac works
The Chinese zodiac assigns one of twelve animals to each lunar year: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig. The sequence repeats every twelve years, while a wider sixty-year cycle combines those animals with five elements and Yin or Yang polarity.
The zodiac year does not change on January 1. Chinese New Year moves between late January and mid-February, so people born near that window should verify the exact date for their birth year before choosing a sign.