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
CEO of Professional Science Editing for Scientists @ prosciediting.com
at time of completion
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at time of completion" is correct and usable in written English.
It can be used to refer to a specific moment when something is finished or concluded. Example: "The final report will be submitted at time of completion of the project."
✓ Grammatically correct
Science
News & Media
Wiki
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
3 human-written examples
At time of completion, these were the largest capacity and longest permanent ground anchors ever installed in the world.
Wiki
Patients were censored at time of completion of treatment if no definite interruption had appeared.
A previous study with a small sample size [ 24] showed the performance of MDQ was independent of depressive symptoms, but the relatively low test-retest reliability kappa coefficient 0.64) with the whole sample implicated the possible influence of clinically relevant factors, such as the patient's mood state at time of completion.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Immigration experience was divided into length of time in Canada and immigration status at time of survey completion.
Science
We also found that recent poor mental health at time of survey completion was significantly associated with increased odds of disagreement.
Patients were assessed for changes in clinical features based on subjective scoring at admission and at the time of completion of the treatment.
There is a lag, because the Land Registry data is at the time of completion, while lenders report prices at the mortgage approval stage, but the direction and rate of change is broadly similar.
News & Media
For example, if an individual was aged 20 at the time of completion, but experienced psychotic symptoms at the age of 17, the adult scale would not be completed.
Science
Because of Koyama's considerable wealth, money was rarely considered an obstacle; estimates at the time of completion put the cost of the project at US$350 million.
Wiki
At the time of completion of the survey, the majority of these patients were severely immunosuppressed (median CD4+ count, 120/mm3).
Academia
According to a 2011 National Science Foundation survey, 35percentt of doctorate recipients — and 43percentt of those in the humanities — had no commitment for employment at the time of completion.
News & Media
Expert writing Tips
Best practice
Use "at time of completion" to clearly specify a point in time when referring to finished projects or surveys. This helps avoid ambiguity.
Common error
Avoid using "at time of completion" when you actually mean 'during the completion process'. The phrase specifies a single moment, not a duration.
Source & Trust
76%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at time of completion" functions primarily as an adverbial phrase, modifying a verb or clause by specifying when an action or state occurred. Ludwig provides examples showing its use in academic and scientific contexts.
Frequent in
Science
60%
News & Media
20%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "at time of completion" is a grammatically correct prepositional phrase used to specify a point in time when something is finished. Ludwig AI confirms its validity and usability. While ""at time of completion"" is not incorrect, there are other better alternatives such as "upon completion" that provides more concise phrases that may be more suitable depending on the contexts. Although the phrase has a broad application, it is used mostly in the field of science, news and media and wiki articles.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
upon completion
Replaces the prepositional phrase with a single preposition indicating the event that triggers the action.
when completed
Uses a temporal conjunction to indicate the point in time when something is finished.
on finishing
Emphasizes the action of finishing as the point of reference.
at the conclusion
Replaces "completion" with a synonym, offering a slightly more formal tone.
after finishing
Indicates a time shortly following the completion.
subsequent to completion
Introduces a more formal and somewhat legalistic tone.
once finalized
Focuses on the finalization aspect of the process.
following finalization
Similar to "subsequent to completion", but with a different noun.
as soon as it's done
Offers a more informal and direct way to express the idea.
post-completion
Uses a prefix to denote the time after completion.
FAQs
How can I use "at time of completion" in a sentence?
You can use "at time of completion" to specify a specific moment when referring to finished projects or surveys. For example: "The data was analyzed "at time of completion" of the study."
What can I say instead of "at time of completion"?
You can use alternatives like "upon completion", "when completed", or "on finishing" depending on the context.
Is "at the time of completion" or "at time of completion" more correct?
"At time of completion" and "at the time of completion" are both grammatically correct, though "at the time of completion" is more common and flows more smoothly in many contexts.
What's the difference between "at completion" and "at time of completion"?
"At completion" is a more concise way of saying the same thing as ""at time of completion"". The inclusion of "time of" is generally stylistic and doesn't drastically alter the meaning.
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
76%
Authority and reliability
4.1/5
Expert rating
Real-world application tested