
Call it a day
Work-related
Primarily used in work or task-oriented scenarios to signal the end of productivity for the day.
After eight hours of coding, we'll call it a day.
Not Literal
Doesn't always mean the day is over, just the end of a period of work or activity.
Let's call it a day and meet back here tomorrow morning.
Informal
Used in casual conversation, not formal communication or official ending of workday.
We painted a lot of the fence, let's call it a day.