20 17 12.28 what is the lunar calendar?

According to the query calendar network, the lunar calendar 1 1 month1day 20 17 12/28 is Ding You's year, Ren Zi's month and Gui Chou's day. 20 17 is the year of the rooster, and1/month 1 1 day is the fourth Thursday of 20 17 12. Lunar calendar is a traditional calendar in China, which is a combination of yin and yang. It is based on the changing cycle of the moon phase, each moon phase changes for one month, and the length of the tropic of cancer is one year. 24 solar terms and leap months have been added to make the average calendar year adapt to the tropic of cancer of the sun.