clock watcher

To this extent, the anxieties of the clock watchers were well-founded.

Some toxic managers are incessant clock watchers, taking note of the time you arrive in the morning and leave in the evening, and nitpicking about the length of work breaks.

They call the persons in the former rush the clock watchers.

Character—excellent, not a clock watcher—interested only in results, working night and day if necessary to secure his success.