后三700注稳定大底

简介：The seven gates in the nine cities inside and outside the capital of the Ming Dynasty have fixed opening and closing times, which have not changed since Zhu Di, the founder of the Ming Dynasty, made Beijing his capital. At three o'clock in the first watch (the fifth quarter of the Yin hour), the evening drum is sounded, the city gate is closed, and travel is prohibited; at the third o'clock in the fifth watch (the fifth quarter of the Yin hour), the morning bell is sounded, the city gate is opened, and travel is prohibited.