According to the China lunar calendar, beginning of autumn is one of the 24 solar terms, which occurs on August 7th or 8th every year. This year, beginning of autumn time in 2023 is indeed on August 8th. According to astronomical observation and calculation results, this year's beginning of autumn occurred at 2: 22: 4 1 sec. This time marks the gradual end of summer and the beginning of autumn, which has certain guiding significance for agricultural production and meteorological changes.