《资治通鉴·汉纪·汉纪三十六》
于是又从原路下山。 夜半 后，即深夜子时之后，光武帝才抵达山下。而群臣到 明旦 一一即次日清晨寅时才全部下山。
群臣称万岁，乃复道下。夜半后，上乃到山下，百官明旦乃讫。
And so he returned by the same way, descending from the mountain. He only reached the foot of the mountain when it was past the you hour, in other words the middle of the night. The officials did not finish descending the mountain until it was the mingdan, in other words day break.