Time is a part of every conversation, but English speakers often use idioms about time instead of simple phrases.
If you are looking for idioms for time, useful expressions include “against the clock,” “in the nick of time,” “once in a blue moon,” “time flies,” and “around the clock.”
These idioms can describe deadlines, rare events, busy schedules, delays, free time, and important moments.
Some are casual, while others work well in professional or written English. This guide explains 18 established time idioms in simple language.
Each expression includes its meaning, when to use it, and natural examples.
Quick Answer
Some common time idioms are “against the clock,” meaning under pressure to finish quickly; “in the nick of time,” meaning just before it is too late; and “once in a blue moon,” meaning very rarely. “Time flies” means time passes quickly, while “kill time” means to spend time while waiting.
What Are Time Idioms?
Time idioms are established English expressions that use words about time, clocks, days, or moments to express ideas in a figurative way. They can describe speed, deadlines, frequency, age, opportunity, waiting, or change. These phrases are common in everyday conversations and writing. Learning them helps English learners understand native speakers and communicate more naturally.
Quick Overview
| Idiom | Short Meaning | Suitable Context |
|---|---|---|
| Against the clock | With very little time available | Work, deadlines |
| Beat the clock | Finish before a deadline | Work, sports, tasks |
| Once in a blue moon | Very rarely | Everyday conversation |
| In the nick of time | Just before it is too late | Everyday situations |
| Kill time | Spend time while waiting | Casual conversation |
| Time flies | Time passes quickly | Everyday conversation |
| Around the clock | All day and night | Work, services, emergencies |
| Ahead of time | Earlier than expected or planned | Work, appointments |
| Behind the times | Old-fashioned | Technology, ideas, habits |
| Call it a day | Stop working for the day | Work, casual speech |
| For the time being | For now | Everyday, professional |
| Time on your hands | Free time available | Everyday conversation |
| Make up for lost time | Use time well after a delay | Work, relationships |
| The time of your life | A very enjoyable experience | Travel, events |
| At the eleventh hour | At the last possible moment | Deadlines, decisions |
| Bide your time | Wait for the right moment | Strategy, personal goals |
| A race against time | A situation requiring quick action | Emergencies, projects |
| Time is money | Time has value and should not be wasted | Business, work |
18 Useful Idioms for Time
1. Against the Clock
Meaning:
Against the clock means working with very little time available to finish something.
When to Use:
Use this idiom when there is a strict deadline or when someone must complete a task quickly. It is common in work, school, sports, and other situations involving time pressure.
Examples:
- We were working against the clock to finish the report before the meeting.
- The rescue team was against the clock as the storm moved closer.
This expression highlights pressure caused by limited time.
2. Beat the Clock
Meaning:
Beat the clock means to finish something before a deadline or before the available time runs out.
When to Use:
Use it when someone succeeds in completing a task quickly enough. It is common in competitions, work, games, and everyday tasks.
Examples:
- She managed to beat the clock and submit her application before midnight.
- The driver beat the clock and reached the airport before the road closed.
The expression often suggests a small victory over a time limit.
3. Once in a Blue Moon
Meaning:
Once in a blue moon means something happens very rarely.
When to Use:
Use this informal idiom when an event happens only occasionally. It is useful for talking about habits, visits, activities, or unusual events.
Examples:
- I eat fast food once in a blue moon.
- We see our old neighbors once in a blue moon because they moved to another city.
Do not use it for something that happens regularly. The phrase means rarely, not simply “sometimes.”
4. In the Nick of Time
Meaning:
In the nick of time means just before it becomes too late.
When to Use:
Use it when someone arrives, acts, or finishes something at the last possible moment and avoids a problem.
Examples:
- We arrived in the nick of time to catch the last train.
- The firefighter reached the building in the nick of time.
This expression often suggests that the situation was very close to going wrong.
5. Kill Time
Meaning:
Kill time means to spend time doing something while waiting for something else to happen.
When to Use:
Use it in informal conversations when someone has free time before an appointment, journey, meeting, or event.
Examples:
- I read a magazine to kill time while waiting for the doctor.
- We played cards to kill time before the movie started.
The expression does not mean literally harming time. It simply means passing time.
6. Time Flies
Meaning:
Time flies means that time seems to pass very quickly.
When to Use:
Use it when you are surprised by how quickly a period has passed, especially during an enjoyable or busy experience.
Examples:
- Time flies when you are having fun with friends.
- I cannot believe my son is already ten. Time flies!
This is a very common and natural expression in everyday English.
7. Around the Clock
Meaning:
Around the clock means continuously throughout the day and night.
When to Use:
Use it when a person, team, service, or activity continues for 24 hours or nearly continuously.
Examples:
- The hospital provides emergency care around the clock.
- Engineers worked around the clock to restore the power supply.
The phrase is common in news reports, business writing, and everyday speech.
8. Ahead of Time
Meaning:
Ahead of time means earlier than the expected, scheduled, or required time.
When to Use:
Use it when someone finishes something early, arrives early, or prepares before a deadline.
Examples:
- I completed the assignment ahead of time.
- We arrived ahead of time and had coffee before the meeting.
This expression is neutral and can be used in both casual and professional situations.
9. Behind the Times
Meaning:
Behind the times means old-fashioned or not keeping up with modern ideas, technology, or ways of doing things.
When to Use:
Use it when describing a person, company, system, or idea that has not adapted to changes.
Examples:
- The company’s computer system is behind the times.
- My grandfather admits that he is behind the times when it comes to social media.
The expression can sound critical, so use it with care when describing another person.
10. Call It a Day
Meaning:
Call it a day means to stop working on something for the day.
When to Use:
Use it when you decide that enough work has been done and it is time to stop. It is common in informal workplace conversations.
Examples:
- We have finished the main tasks, so let’s call it a day.
- After five hours of painting, they decided to call it a day.
The expression usually refers to stopping work, not simply leaving a place.
11. For the Time Being
Meaning:
For the time being means for now or during the present period.
When to Use:
Use it when a situation is temporary and may change later. It works well in both conversation and professional writing.
Examples:
- For the time being, I am working from home.
- We will use the smaller office for the time being while the new building is completed.
This is one of the more neutral time idioms and is suitable for many formal situations.
12. Time on Your Hands
Meaning:
Time on your hands means having free time because you have nothing that currently needs your attention.
When to Use:
Use it when someone has more free time than usual, often because they are between jobs, on vacation, or waiting for something.
Examples:
- Now that the exams are over, I have more time on my hands.
- With so much time on his hands, he started learning to play the guitar.
The phrase can be positive or negative depending on how the free time is used.
13. Make Up for Lost Time
Meaning:
Make up for lost time means to do something faster or spend extra time doing something after a delay or period when time was wasted.
When to Use:
Use it when someone wants to recover from a delay, missed opportunity, or period of inactivity.
Examples:
- We started the project late, so we need to work harder to make up for lost time.
- After years apart, the two friends spent the weekend together to make up for lost time.
This idiom can apply to both work and personal relationships.
14. The Time of Your Life
Meaning:
The time of your life means a period when you have an extremely enjoyable or exciting experience.
When to Use:
Use it when talking about vacations, parties, trips, celebrations, concerts, or other memorable experiences.
Examples:
- We had the time of our lives during our trip to the mountains.
- She had the time of her life at the graduation party.
This is an enthusiastic and positive expression.
15. At the Eleventh Hour
Meaning:
At the eleventh hour means at the last possible moment, just before it is too late.
When to Use:
Use it when an important action or decision happens very late.
Examples:
- The company changed its plans at the eleventh hour.
- He submitted his application at the eleventh hour.
This phrase is often used in news, business, and everyday English. It can suggest that the action happened later than was sensible.
16. Bide Your Time
Meaning:
Bide your time means to wait patiently for the right opportunity or moment to act.
When to Use:
Use it when waiting is deliberate and useful. It often suggests patience, planning, or strategy.
Examples:
- She decided to bide her time until a better job became available.
- He bided his time before responding to the criticism.
This expression is more deliberate than simply saying “wait.” It suggests that the person is waiting for a good moment to act.
17. A Race Against Time
Meaning:
A race against time describes a situation where someone must act quickly because there is very little time available.
When to Use:
Use it for emergencies, deadlines, rescue efforts, projects, or any situation where time is critical.
Examples:
- Finding the missing hikers became a race against time.
- Finishing the building before winter was a race against time.
This phrase often creates a strong sense of urgency and pressure.
18. Time Is Money
Meaning:
Time is money means that time has value, especially because time spent on one activity could be used for productive or profitable work.
When to Use:
Use it when discussing business, work, efficiency, or the cost of wasting time.
Examples:
- We need to make a quick decision because time is money.
- The manager reminded the team that time is money and delays can increase costs.
This is a common expression in business and everyday discussions about productivity.
How to Use These Idioms Naturally
The key to using time idioms well is to understand the specific idea each one expresses. Many of them are related to time, but they are not interchangeable.
For example, “ahead of time” means early, while “at the eleventh hour” means very late. “Against the clock” focuses on pressure, while “beat the clock” focuses on successfully finishing before time runs out.
Match the idiom to the situation
Use “once in a blue moon” when something is rare. If you visit a restaurant every weekend, saying you go there once in a blue moon would be incorrect.
Use “kill time” when you are waiting and need something to do. If you are working hard toward an important deadline, “against the clock” is a better choice.
Think about tone
Some idioms are very natural in casual speech. “Kill time,” “call it a day,” and “time flies” are common in everyday conversations.
Other expressions can fit professional writing. “Around the clock,” “ahead of time,” “for the time being,” and “a race against time” are often suitable in workplace or news contexts.
Be careful with strong expressions
“At the eleventh hour” can suggest that someone waited too long. If an employee submits a report one day before the deadline, the phrase may sound critical depending on context.
Likewise, “behind the times” can sound negative when describing a person or organization. Use it carefully, especially in professional communication.
Do not overuse idioms
A natural paragraph does not need an idiom in every sentence. Too many expressions can make your writing sound forced.
For example, saying that you arrived “ahead of time” is useful when arriving early matters. If it does not add anything, simply saying “I arrived early” may be clearer.
Learn the grammar of each expression
Some idioms commonly appear in fixed forms. You say “call it a day,” not “call it the day,” when using the standard expression.
You also say “once in a blue moon,” not simply “once in blue moon.” Learning the complete phrase helps you avoid small grammar mistakes.
Practice Exercise
Fill in each blank with the most suitable idiom from the article.
- We had only two hours left to finish the report, so we were working __________.
- I visit that old bookstore __________ because it is far from my home.
- We arrived __________ and had to wait outside for ten minutes.
- The rescue operation became __________ as night approached.
- We have done enough work for today. Let’s __________.
Answer Key
- against the clock
- once in a blue moon
- ahead of time
- a race against time
- call it a day
Frequently Asked Questions
What are the most common idioms for time?
Some of the most common time idioms are “time flies,” “once in a blue moon,” “in the nick of time,” “kill time,” “ahead of time,” and “call it a day.” These expressions are especially useful in everyday English.
What does “time flies” mean?
“Time flies” means that time seems to pass very quickly. People often use it when they are surprised that a day, month, year, or period has passed so quickly.
What does “once in a blue moon” mean?
“Once in a blue moon” means very rarely. For example, if someone eats at a particular restaurant only a few times a year, they might say they eat there once in a blue moon.
What is an idiom for doing something at the last moment?
“At the eleventh hour” means doing something at the last possible moment. “In the nick of time” is also useful when something happens just before it becomes too late.
What does “time is money” mean?
“Time is money” means that time has value and should not be wasted, especially in business or work. It highlights the connection between time, productivity, and financial results.
Conclusion
Time idioms help English speakers describe deadlines, delays, rare events, busy periods, free time, and important moments in a vivid way.
Expressions such as “against the clock,” “in the nick of time,” “time flies,” and “once in a blue moon” are useful in everyday communication.
The best approach is to learn each idiom with its meaning, tone, and typical context.
Once you understand these differences, you can use time-related expressions more naturally and confidently.
James Anderson is a content writer passionate about making words, phrases, and everyday concepts easier to understand.