Comrade Yu Maogui, 1945, a native of Hui 'an County, Fujian Province,1joined the work in August 1969, and1joined China in August 1973. This year is 2023, so Yu Maogui's age is 2023- 1945=78.

In 2023, Gregorian calendar is an average year, with 365 days and 52 weeks, 1 day. The whole year is from the tenth day of the twelfth lunar month in Renyin year to November 19th in Guimao year.