Question: The Monkey King Festival, is celebrated in China on the 16th day of the eighth Lunar month of which traditional,  lunisolar calendar which reckons years, months and days according to astronomical phenomena?
Sentence (from "Chinese calendar"): s of 2017 , the Chinese calendar is defined by GB/T 33661-2017 "Calculation and promulgation of the Chinese calendar," which the Standardization Administration of the People's Republic of China issued on May 12, 2017.
Relevant evidence: No