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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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day of when

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "day of when" is not correct and not usable in written English.
It seems to be an incorrect combination of words that does not convey a clear meaning or context. Example: "I remember the day of when we first met."

⚠ May contain grammatical issues

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

But anyone who has ever braved the crowds to shop there the day before Yom Kippur -- not to mention the day of, when the store remains open -- knows that the bulk of the business is walk-in.

"Even the day of, when we're filming, someone will have a good idea," said Mr. Baxter, who has helped construct anthropomorphic ears of corn and ice cream cones, among other things, for "Food Party".

Mr. Giuliani said watching the documentary stirred the most disturbing memories of that day: of when he pulled up next to the north tower and saw people jumping to the ground around him.

I knew little about marriage before I got married, not having even contemplating it until the day of when my then partner asked me to meet her at city hall in San Francisco to get married.

News & Media

Huffington Post

On the day of when Flora made landfall, advisories recommended all citizens on beaches and in low-lying areas west of Santo Domingo to evacuate.

In these cases, it is still safe to assume that the fish died within a day of when it was last seen alive because living fish were rarely missed when surveying the stream.

Science

Plosone
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Human-verified similar examples from authoritative sources

Similar Expressions

52 human-written examples

Had the day of days when everything clicked but also showed enough to indicate it was not all a fluke.

This effect was variable over the 5 days, but was generally most notable on the day of introduction, when both the short and daily trends were positive.

The plant inside the greenhouse captured less than 1.0 g/m2 day of CO2 when ventilation is used, whereas it captured nearly 52 g/m2 day of CO2 when alternative cooling is used.

Their new year is the first day of spring, when the light comes and the days are longer.

They chose a day of reflection, when many were thinking of peace forgiveness, thinking about others.

News & Media

The Guardian
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Expert writing Tips

Best practice

Avoid using the phrase "day of when" in formal writing. Opt for grammatically correct alternatives such as "the day when" or "the day that" to ensure clarity and professionalism.

Common error

A common mistake is adding "of when" after "day". It's generally redundant. Choose either "the day when" or "the day that" to maintain grammatical correctness and avoid awkward phrasing.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "day of when" functions as a temporal conjunction, attempting to connect a specific day with a related event or condition. However, according to Ludwig AI, the phrase is grammatically incorrect, representing a flawed attempt to specify time.

Expression frequency: Uncommon

Frequent in

News & Media

40%

Science

40%

Wiki

20%

Less common in

Formal & Business

0%

Academia

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "day of when" is generally considered grammatically incorrect. While it appears in some contexts, particularly in news, media, and scientific sources, its usage is not recommended for formal writing. Ludwig AI identifies it as a flawed combination of words. It is advisable to use grammatically correct alternatives like "the day that" or "the day when" to ensure clarity and precision. The low expert rating reflects the phrase's grammatical issues and inconsistencies.

FAQs

Is "day of when" grammatically correct?

No, the phrase "day of when" is generally considered grammatically incorrect. It's better to use phrases like "the day "the day that"" or "the day "the day when"".

What are some alternatives to "day of when"?

Alternatives include "the day that", "the day on which", or simply "the day "the day when"". The best choice depends on the specific context of your sentence.

How can I use "the day when" in a sentence?

For example, you could say, "I remember the day "the day when" we first met" instead of "I remember the day of when we first met".

Which is correct, "day of when" or "the day that"?

"The day that" is the correct and preferred phrase. Avoid using "day of when" as it is grammatically questionable. For example, use "the day "the day that" I graduated" instead of "day of when I graduated".

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Source & Trust

81%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Most frequent sentences: