The Chinese calendar is a lunisolar calendar, incorporating elements of a lunar calendar with those of a solar calendar.Because each month follows one cycle of the moon, it is also used to determine the phases of the moon. The Chinese calendar is still used for marking traditional East Asian holidays such as the Chinese New Year, the Duan Wu festival, and the Mid-Autumn Festival, and in astrology, such as choosing the most auspicious date for a wedding or the opening of a building.

Chinese lunar calendar is old，it is important to guides chinese agriculture。it is too complex to cant be understand by many chinese。some experts is studying it

1 IT'S CALLED "農曆". FOR FURTHER INFORMATION, SEE http://en.wikipedia.org/wiki/Chinese_calendar 2 TO FIND OUT THE CORRESPONDING LUNISOLAR DATE TO THE GREGORIAN DATE, PLEASE DOWNLOAD MICROSOFT " CHINESE DATE AND TIME UTILITY" TO SEE IT. 3 "SEP. 30, 2012 A.D. (中華民國101年9月30日) " IS CORRESPONDING TO "農曆壬辰 (龍) 年八月十五日(中秋)". AND "FEB. 10, 2013 A.D. (中華民國102年2月10日) " IS CORRESPONDING TO "農曆 癸巳 (蛇) 年 正月初一日 (春節)".