Time to talk idioms: A comprehensive guide to idioms about time

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Learning idioms about time helps you understand the natural flow of English conversation.
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Ever feel like you’re ‘against the clock‘ or waiting for something that only happens ‘once in a blue moon‘? English is packed with time idioms that don’t make sense if you translate them literally. In English, time isn’t just a measurement; it is something we “save,” “spend,” “kill,” and even “steal.” Because idioms rarely translate literally, mastering these phrases is essential for anyone looking to achieve native-level fluency.

Here are the most common time idioms you’ll actually hear in conversation.

Common idioms about time and their meanings

Using a time idiom correctly can make your English sound more natural and rhythmic. Here is a breakdown of the most frequently used time expressions in daily life.

IdiomMeaningExample sentence
A stitch in time saves nineFix a small problem now to avoid a bigger one later.“I replaced the worn tire today; a stitch in time saves nine.”
Against the clockRushing to finish something before a strict deadline.“The team is working against the clock to launch the app.”
In the nick of timeAt the very last possible moment.“The goal was scored in the nick of time, just seconds before the whistle.”
Once in a blue moonSomething that happens very rarely.“My brother lives abroad, so I only see him once in a blue moon.”
Time is of the essenceTime is the most important factor; speed is required.“Please sign the contract today; time is of the essence.”

Idioms for being busy or rushed

When things get busy, these are the phrases you’ll hear most.

  • Around the clock: Working or happening 24 hours a day without stopping. Note: People will also use this in an exaggerated way from time to time. For example, a normal workday might be eight hours, but they’ve been working 12-16 hours.
    • Example: “The rescue teams worked around the clock to find survivors.”
  • Pressed for time: Having a very limited amount of time available.
    • Example: “I’d love to chat, but I’m a bit pressed for time right now.”
  • Beat the clock: To finish a task before a time limit expires.
    • Example: “She managed to beat the clock and submit her exam with one minute to spare.”
  • Make up for lost time: To do something more intensely because you didn’t do it earlier.
    • Example: “After being apart for a year, the friends talked all night to make up for lost time.”

Pro tip: In a modern office, you’ll likely hear “against the wire” almost as often as “against the clock.” Both mean the deadline is looming!

A cartoon illustration of a busy office with staff working during both day and night shifts, featuring a large glowing clock to represent the idiom "around the clock.
Working “around the clock” means a task or service continues 24 hours a day, through both sunrise and sunset.

Idioms about the past and nostalgia

We often use idioms to look back on earlier days or remind ourselves of how things used to be.

  • Back in the day: A casual way to refer to a time in the past, often with nostalgia.
    • Example:Back in the day, we didn’t have the internet to look up directions.
  • A blast from the past: Something that suddenly returns from the past or reminds you of it.
    • Example:Seeing my high school teacher at the grocery store was a real blast from the past.
  • Long time no see: A common greeting used when you haven’t seen someone for a long period.
    • Example: Hey, John! Long time no see!
  • Once upon a time: The traditional opening for fairy tales, used to describe a distant or fictional past.
    • Example: Once upon a time in a land very far away…”

Expressions for the future and patience

Talking about what is “down the road” requires a different set of vocabulary focused on anticipation and eventual outcomes.

  • All in good time: A reminder to be patient, as things will happen when the timing is right.
  • In the long run: Looking at the results over a long period rather than the immediate future.
    • Example: “It’s hard to save money now, but it will be worth it in the long run.”
  • Only time will tell: The truth or result of a situation will only be known in the future.
  • In due course: Something that will happen at the appropriate or natural time.

Idioms for speed and opportunity

Some of the most famous English proverbs about time encourage us to take action or describe how quickly life moves.

  • The early bird gets the worm: Success comes to those who prepare well and act early.
  • Strike while the iron is hot: Take advantage of an opportunity immediately while conditions are favorable.
  • Before you can say Jack Robinson: An old-fashioned way to say something happened extremely quickly.
  • In no time: Very rapidly.
    • Example: “Don’t worry, we’ll have your car fixed in no time.”

Frequently asked questions about time idioms

In professional settings, the most common time idioms are “time is of the essence” (meaning urgency is required) and “against the clock” (working hard to meet a deadline). You will also frequently hear “at the eleventh hour,” which refers to a decision or change made at the very last possible moment.

“Living on borrowed time” describes a person or thing that continues to exist or function longer than expected, despite an impending threat or certain end. On forums like Reddit, users often use this to describe old technology that is about to fail or a company facing unavoidable bankruptcy.

The original and “proper” idiom is “the crack of dawn,” referring to the very first light of day. However, in casual, slang-heavy conversation, native speakers often say “the butt crack of dawn” or “the crack of noon” (a joke about waking up late). While widely understood, you should avoid the “butt” version in formal writing or professional emails.

The quick difference: Use on time for schedules (like a train) and in time for deadlines or avoiding a late arrival (like reaching the theater before the movie starts).

See our guides on prepositions of time and adverbs of time to learn more about time phrasing.

A “blue moon” is the second full moon in a single calendar month, which happens approximately every 2.7 years. The idiom uses this rare astronomical event to describe something that happens very infrequently, such as seeing a distant relative or a rare celestial event. You can explore the historical origins of such phrases at the Online Etymology Dictionary.

To “call it a day” means to stop working on a task or to end an activity for the evening. It is often used when a team is tired or has reached a natural stopping point. If you decide to stop working on something permanently (like a career), you might say you are “calling it a career.”

Mostly used in British English, “donkey’s years” is a very common idiom meaning a very long time. For example, “I haven’t seen him in donkey’s years!” It is believed to be a pun on “donkey’s ears,” which are notably long.


Videos to help you learn

Common idioms and expressions about time

This video will help you learn how to pronounce and use many common time idioms.


An interactive video about time idioms

This video may be more helpful for visual learners.


Final thoughts on mastering time idioms

Understanding these common English expressions is a major step toward fluency. Time idioms do more than just describe a clock; they reveal how different cultures value patience, speed, and opportunity. By practicing phrases like “once in a blue moon” or “striking while the iron is hot,” you’ll find that your conversations feel more natural and engaging.

Share your favorite idioms

Which of these time-related phrases do you use the most? Are there any unique idioms about time in your native language that don’t quite translate to English?

Leave a comment below and let’s discuss the most interesting ways we talk about the passing of time. If you found this guide helpful, share it with a friend who is also working on their English skills!


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