at that day

USAGE SUMMARY

The phrase "at that day" is correct and can be used in written English.
It typically expresses a specific moment in time. For example, "I will never forget the moment I first saw him at that day."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

26 human-written examples

Four years have passed, but he still won't go near the Catholic church he'd been working at that day.

The Washington Post

In our patients the high HBP –concentrations did not persist to day 7, at that day both groups had median HBP –levels lower than that at baseline.

BMC Infectious Diseases

BBP exposure did not modify the day at vaginal opening (control group: 30.46 ± 0.13 days; BBP group: 30.44 ± 0.11 days), but decreased significantly (p < 0.05) the body weight at that day (control group: 101.96 ± 1.09 g; BBP group: 97.26 ± 1.49 g).

BMC Genomics

"I look at that day with mixed emotions," Mark Leavy said.

The New York Times

"Looking back at that day, we shouldn't have finished second with that car, that shouldn't have worked," Bowyer said.

The New York Times - Sports

"I'm stuck in time, still stuck at that day," she said in recent comments that were among nearly 30 hours of interviews over eight months.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

34 human-written examples

He had left his own phone at work that day.

The Guardian

Tells about the exacta & other races at Aqueduct that day.

The New Yorker

He wasn't the only chaplain at Normandy that day.

Huffington Post

"I was at Freedom Plaza that day.

The New Yorker

At dinner that Sunday, Ms. Einhorn veered into a story.

The New York Times

Expert writing Tips

Best practice

Use "at that day" to refer to a specific event or situation that occurred on a particular day already mentioned or understood in the context. This provides a clear and concise reference to a previously established timeframe.

Common error

Avoid using "at that day" when referring to a general period or era. For example, instead of saying "Life was different at that day", consider "Life was different in those days" to reflect a broader timeframe.

Linguistic Context

The phrase "at that day" functions as a prepositional phrase, modifying a verb or noun to specify a particular point in time. As Ludwig AI confirms, it is grammatically correct and used to indicate when something occurred or was true, similar to examples found in Ludwig.

Expression frequency: Common

Frequent in

News & Media

35%

Science

33%

Academia

32%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "at that day" is a grammatically sound and relatively common prepositional phrase used to specify a particular point in time. As Ludwig AI confirms, it is acceptable for use in written English. It appears frequently in news, scientific, and academic contexts. While alternatives like "on that day" or "during that day" exist, "at that day" provides a clear and concise way to reference a specific moment. Remember to avoid using it for general time periods and always use "on that day" might be preferrable.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

on that particular day

Emphasizes the specificity of the day in question.

during that day

Focuses on the duration or span of time within that day.

on that specific date

Highlights the calendar date more explicitly.

that very day

Adds emphasis to the immediacy or importance of the day.

at that point in time

Broader, referring to a moment rather than a whole day.

in those days

Refers to a period, not a single day.

on that occasion

Highlights a specific event rather than the day itself.

when that day arrived

Focuses on the arrival or beginning of that day.

as of that day

Indicates a starting point or a change effective from that day.

upon that day

A more formal or archaic way of saying "on that day".

FAQs

How can I use "at that day" in a sentence?

Use "at that day" to specify an event or condition existing on a specific day. For example, "He was working "at the church that day" when the incident occurred."

What's a more formal alternative to "at that day"?

While "at that day" is acceptable, a more formal alternative could be "on that particular day" or "upon that occasion". For example, "The agreement was finalized "on that particular day"."

Is there a difference between "on that day" and "at that day"?

While similar, "on that day" is more commonly used to refer to the whole day or events happening during it, whereas "at that day" specifies more of a condition or state existing on that day. They are often interchangeable but "on that day" might be preferrable.

When is it incorrect to use "at that day"?

It's incorrect to use "at that day" when referring to a general time period or habitually occurring events. Use phrases like "in those days" or "back then" instead. For example, it would be wrong to say, "People communicated differently "at that day"".