One of the oldest in the world, the chinese calendar is a sun-and-moon calendar. Months are set according to the moon, i.e. the first day of each month, is the new moon and the 15th day is the fuul moon. Because the solar year counts 12 lunar month plus a dozen of days, seven intercalary months are added over each 19 years, in order for the calendar year to stay within a solar year.

Chinese astrology is based on a 12 years cycle, represented by twelve animals. In order appear the Rat, the Ox, the Tiger, the Rabbit, the Dragon, the Snake, the Horse, the Goat, the Monkey, the Rooster, the Dog and the Pig. Each animal is a symbol of characteristic personality traits of persons born during this sign.