clock-watcher 混时间的人；老是看钟等下班的人

【例句】

The boss told him to work hard and not to be a clock-watcher.
老板告诉他要好好干活，不要老是看时间等下班。

That new guy is a total clock-watcher. He checked his phone five times in one hour and left his desk exactly at five o'clock.
那个新来的员工看时间等下班。他一个小时内看了五次手机，一到五点立马走人。