Word or phrase meaning "working hours have ended, and it's time to go home"?

What word or phrase is used to signify that the work day has ended?


Solution 1:

If you call it a day, it means that you consider the day's work is done.

Solution 2:

They may say that they are going to "call it quits":

to quit; to resign from something; to announce that one is quitting.

Okay! I've had enough! I'm calling it quits.

Time to go home, John. Let's call it quits.

In this sense, quit is not used to mean that they are leaving their job for good but that they are leaving for the night. A related phrase is "quitting time":

Ok, 5pm. It's quitting time. I'm going home.