By Daniel, ESL Educator & Idiom Series Author
Look at these two sentences:
1. “What should we call it, a day trip or a holiday?”
2. “It’s six o’clock. Let’s call it a day.”
Both use the words call it and day, but only the second one is the idiom, and learners often mix them up. In call it a day, nobody is giving anything a name. The phrase is about stopping.
Quick answer: To call it a day means to stop working on something for now, usually because you’re tired, you’ve done enough or it’s time to go home.
“Call it” as in “count it”
The secret is the verb. Here, call means “consider” or “count as,” the same way a shop assistant might say, “It’s $9.80, but let’s call it nine dollars.” So call it a day means: let’s count the work we’ve done as a full day, even if the clock says otherwise.
The history fits this idea. According to Dictionary.com, the earliest recorded form was call it half a day, from 1838, used when someone left work before the day was over. The Online Etymology Dictionary says that in the 1870s people spoke of a teacher closing school at noon and calling it a day, and that the modern sense, simply “stop working,” is recorded by 1902. Dictionary.com gives a slightly later date, 1919, for the modern wording. Either way, it has been everyday English for more than a century.
Three things the dictionary entry won’t show you
1. It’s often a polite suggestion
In meetings and group work, “Shall we call it a day?” or “Let’s call it a day” is a gentle, friendly way to end. It sounds much softer than “We’re done” or “Stop.” A manager can say it to a team, and a team member can suggest it to a manager, too.
2. It doesn’t have to be evening
You can call it a day at 2 p.m. if the work is finished or if things aren’t going well: “The printer broke again. Let’s just call it a day and try tomorrow.” What matters is that you’re stopping, not the time.
3. It can mean stopping for good
Sometimes people use it for something much bigger than one day’s work, like a career or a long project: “After forty years as a teacher, she decided to call it a day.” The context tells you whether someone is going home for the evening or retiring forever.
Patterns to copy
- Let’s call it a day. (the most common form)
- Shall we / Should we call it a day? (a polite question)
- I think I’m going to call it a day. (about yourself)
- We called it a day at five. (past tense: called)
- Keep “it” and “a.” Not “call a day” or “call it the day.”
The tone is informal but very widely accepted. You can say it in almost any workplace.
In the office
Carlos: We’ve been looking at these numbers for three hours.
Aisha: And they still don’t add up.
Carlos: Our brains are tired. Let’s call it a day and look again in the morning.
Aisha: Good idea. Fresh eyes might help.
Its relatives
- call it a night: the same idea in the evening. You stop what you’re doing (working, partying, watching movies) and usually go home or to bed.
- call it quits: stop something, often for good, and often after a struggle. It’s also used for ending a relationship: “After six months, they called it quits.”
- wrap up: finish the last part of a task or meeting: “Let’s wrap up in ten minutes.”
- knock off: very casual, mainly British and Australian: stop work for the day.
Quick practice
1. What does Leo mean? “I’m exhausted. I’m calling it a day.”
a) He’s naming something.
b) He’s stopping work for now.
c) He’s going to work all night.
2. Night or day? It’s 11:30 p.m. and the party is ending. “Okay, everyone, let’s call it a ___.”
3. What does it mean here? “The famous runner called it a day after the Olympics.”
Answers: 1. b. 2. night (though “day” would also be understood). 3. She retired from running.
You might also like: Burn the Midnight Oil, for the nights when you can’t call it a day yet.
A Note from Daniel
There’s something quietly encouraging about this idiom. It didn’t come from ancient poetry or dramatic history. Instead, it grew out of the simple need to stop, rest, and start fresh the next day. That need is still with us. In fact, knowing when to call it a day feels even harder and more important now. If you have a story about a time when stopping was the right choice—or a moment you wish you had—I’d truly love to hear it.
Sources
- “Call it a day.” Dictionary.com. dictionary.com
- “Call it a day.” Online Etymology Dictionary. etymonline.com
- Cambridge Dictionary, entries: “call it a day,” “call it quits.”
Every word carries a story. Stay curious. — Daniel