Change the time of a day into eight hours, and each time represents that hour?

In ancient times, a day and night was divided into twelve hours, namely: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai. Every hour is equivalent to two hours in modern times. 23 ~ 65438+ 0 am, 65438+ 0 ~ 3 pm, 3 ~ 5 pm, 5 ~ 7 am, 7 ~ 9 am, 9 ~ 1 pm,1~13 pm. 438+07 ~ 19, 19 ~ 2 1, 2 1 ~ 23.