Chinese new year calculation
A month in the Chinese calendar spans a single lunar cycle. The first day of the month begins during the new moon, so a lunar month can last 29 or 30 days. In order to catch up with the solar calendar, which averages 365.25 days in a year, an extra month is added to the Chinese calendar every two or three years. As a result, Chinese New Year falls on different dates each year between January 21 and February 21.
Each year of the Chinese lunar calendar is represented by one of twelve animal symbols of the Chinese zodiac: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Sheep, Monkey, Rooster, Dog, and Boar. For 2012, it’s the dragon’s turn. According to Chinese astrology, people born on the year of the dragon are said to be strong, self-assured, eccentric, intellectual, and passionate, among other things.