Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

day and night

Grammar usage guide and real-world examples

USAGE SUMMARY

'day and night' is correct and usable in written English.
You can use the phrase to express a contrast or regularly occurring action or events, for example: "We search for truth day and night."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Convoys rolling in day and night, day and night".

Record both day and night.

"I work day and night.

News & Media

The New York Times

He confused day and night.

Aurorae appear in all three emission layers day and night.

He's there day and night".

Pop all day and night.

"They attacked day and night".

News & Media

The New York Times

Shivered all day and night".

News & Media

The New Yorker

"We worked day and night.

News & Media

The Guardian

Cellphones rang day and night.

Show more...

Expert writing Tips

Best practice

Use "day and night" to emphasize the continuous or constant nature of an action or state. For example, "The factory operates day and night to meet the demand."

Common error

Avoid using "day and night" literally when a more nuanced expression is appropriate. For instance, instead of saying "The difference between the old system and the new one is day and night" consider "The difference is significant" or "The difference is stark."

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "day and night" functions primarily as an adverbial phrase modifying a verb, adjective, or another adverb, to indicate continuous or constant action. Ludwig AI confirms that the phrase is grammatically correct and commonly used.

Expression frequency: Very common

Frequent in

News & Media

59%

Academia

23%

Science

12%

Less common in

Formal & Business

4%

Wiki

2%

Reference

0%

Ludwig's WRAP-UP

In summary, "day and night" is a grammatically sound and frequently used phrase to express continuous activity. Ludwig AI affirms its correctness and usability. Predominantly found in News & Media, Academia, and Science, this phrase serves to emphasize the unceasing nature of actions or events. While versatile, mindful usage avoids literal interpretations where more nuanced expressions are suitable. Alternatives such as "around the clock" or "constantly" offer similar meanings, each with slight differences in emphasis. The phrase maintains a neutral register, making it appropriate for diverse communication settings.

FAQs

How can I use "day and night" in a sentence?

You can use "day and night" to emphasize that something happens continuously or constantly. For example, "The security guards are on duty "around the clock"", or "The construction crew worked "non-stop" to finish the project on time".

What are some alternatives to "day and night"?

Alternatives to "day and night" include "around the clock", "all the time", "constantly", or "continuously", depending on the specific nuance you want to convey.

Is it correct to say "daily and nightly" instead of "day and night"?

While "daily and nightly" is grammatically correct, "day and night" is a more common and idiomatic expression. "Daily and nightly" might sound slightly more formal or descriptive but it's not as widely used or recognized as "day and night".

What does it mean when someone says something is "like day and night"?

When something is described as "like day and night", it means the difference between two things is very significant or stark. It's a way of emphasizing a strong contrast. An alternative to this expression is "polar opposites".

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: