Call it a day

Meaning/Usage: Used to express that the work day is over.

Explanation: "Call it" is often times used to make a decision. When you add "day" to this, then a person is making a decision to say that the day is over. This is mostly used to end a working day.

Let's call it a day. I'm too tired to continue working.

We can't continue working without Mike, so let's call it a day.

It's already nine o'clock. Let's call it a day.

A:

How much more work do we have for tonight?

B:

I think we finished everything for the day.

A:

Good. Let's call it a day then.

Other Common Sentences

Let's turn in for the night.

I think we should pick it up from the morning.

pick it up = continue