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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
on one specific day
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on one specific day" is correct and usable in written English.
It can be used when referring to a particular day that is distinct from others in a given context. Example: "The event will take place on one specific day, which will be announced later."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
any given election
any given team
on a given day
any given point
on that day
on each day
any given stage
on the designated day
any given daily
any particular day
on a certain day
on any particular day
on the appointed day
on any single day
any given match
any given community
any given year
any given data
any given compact
each day
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
9 human-written examples
Hospital staff then refused to attend to her, insisting that patients referred from her clinic were only attended to on one specific day of the week.
Science
The article also did not point out what is widely known in the art world: market values cannot be based on what happens in a single auction sale on one specific day.
News & Media
Then one day I read an article in an English newspaper about English historians, and they asked all the people in England to write them letters, telling them what they were going to do on one specific day.
News & Media
We included all patients with severe sepsis or septic shock hospitalized in the participants ICUs on one specific day (26/February/2014).
Some 45% of respondents, who were asked to report their experiences on one specific day, reported looking after eight or more patients.
News & Media
The hourly dumb charge curve is based on one specific day distributed through the whole year, which is the reason why the rest of the transport distribution is the same for each day of the week.
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
Fig. 4 Traffic load measured for the Dubrovnik region for one specific day.
Fig. 5 Hourly distribution of electricity transport demand for one specific day in 2050.
I wasn't supposed to make the team at all, and then we had a great throw on that one specific day and I ended up making the team.
News & Media
The comparison with the real (stochastic) travel speed observed during one specific day on the same road segment shows that travel speeds are highly sensitive to the time of day, with significant stochastic fluctuations caused by different effects.
There's not one specific day the NHS has saved my life.
News & Media
Expert writing Tips
Best practice
Use "on one specific day" to clearly indicate a focus on a single, particular day when detailing events, schedules, or observations. This phrasing is useful when contrasting with general trends or repeated occurrences.
Common error
Avoid using "on one specific day" when a more precise date or timeframe is available. If you know the exact date, stating it directly provides clearer information and avoids potential ambiguity.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on one specific day" functions primarily as an adverbial phrase of time, modifying a verb or clause to specify when an action or event occurs. As Ludwig AI states, it is grammatically correct and usable in written English. It serves to pinpoint a particular moment in time.
Frequent in
News & Media
50%
Science
50%
Academia
0%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "on one specific day" is a grammatically correct phrase used to emphasize the singularity of a particular day. Ludwig AI confirms its usability. It functions as an adverbial phrase of time, adding temporal precision to statements across both News & Media and Science contexts. Although not overly common, this phrase serves a valuable role in clarifying when events occur, and can be replaced by alternatives such as "on a particular day" when appropriate. Be mindful to use precise dates when available for clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
on a particular day
Emphasizes the selectivity of the day, replacing "specific" with "particular".
on a certain day
Uses "certain" to convey that the day is definite but perhaps not yet known or specified.
on a given day
Implies a day that has been predetermined or assigned for a particular purpose.
on that day
Refers back to a day previously mentioned or understood in the context.
on the day in question
Highlights that the day being discussed is the subject of current inquiry or attention.
on the appointed day
Suggests the day has been officially set or designated.
on the designated day
Similar to "appointed day", but emphasizes the act of choosing or marking out the day.
on the selected day
Indicates that the day was chosen from a set of options.
on a chosen day
Day selected out of a larger range of possibilities.
on one distinct day
Emphasizes the uniqueness and separateness of the day from others.
FAQs
What does "on one specific day" mean?
The phrase "on one specific day" refers to a single, particular day that is being singled out or focused on, often to emphasize an event, observation, or condition occurring on that day.
When is it appropriate to use "on one specific day"?
Use "on one specific day" when you want to highlight that something happened or is relevant to a single day as opposed to a period of time or a recurring event. It's useful for emphasizing a snapshot in time.
What can I say instead of "on one specific day"?
You can use alternatives like "on a particular day", "on a certain day", or "on a given day" depending on the context.
Is there a difference between "on one specific day" and "on a specific day"?
While similar, "on one specific day" emphasizes the singularity of the day more strongly than "on a specific day". The use of "one" can add a subtle emphasis on the distinctness of that single day.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested