around the clock 连续不断的；连续不停的；昼夜不停；不眠不休地；夜以继日地

【例句】
People who do very important jobs sometimes have to work around the clock.
有重要工作的人，有时必须夜以继日地工作。

It's important to note that the increased flexibility didn't encourage them to work around the clock.
必须指出的是，增加工作灵活性，但并不鼓励员工全天候工作。