至深夜 meaning in English

far into the night

They worked far into the night .
他们工作至深夜。
He stayed up till all hours of the night to finish his school work .
他熬至深夜才完成学校功课。
6 : 00 a . m . to 7 : 30 a . m . 9 : 30 a . m . to 11 : 30 p . m
上午九时三十分至深夜十一时三十分
He went on studying deep into the night
他继续学习至深夜
6 : 00 a . m . to 11 : 30 p . m
上午六时至深夜十一时三十分

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