the former calendar of China, in which the year consisted of 12 lunar months with an intercalary month added seven times every 19 years to reconcile the lunar year of 354 days with the solar year of 365 days, time being reckoned in 60-year cycles with the first cycle dating from 2637 B.C.
CHINESE CALENDAR
Meaning of CHINESE CALENDAR in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012