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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
but not later
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "but not later" is correct and usable in written English.
It can be used to specify a deadline or a time frame, indicating that something should happen before a certain point but not after. Example: "Please submit your report by Friday, but not later than noon."
✓ Grammatically correct
Academia
News & Media
Science
Alternative expressions(20)
but not completely
that's no longer the situation
but not subsequently
but not late
but not here
subsequently
things have changed
but not away
but not again
but not absolutely
but not anymore
but not enough
but not last
but no longer
but not already
but not thereafter
prior to then
but not far
but not now
at the latest
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
60 human-written examples
"But not later?" "Yes, of course.
News & Media
Embryonic expression was observed at day 7, but not later in embryogenesis.
In one animal exposed to five booms, changes of the hearing thresholds were observed 24 hours following the exposure, but not later.
See, they had teaser loans they could pay at first, but not later.
News & Media
The authors note that early interventions tend to boost test scores immediately but not later in life.
News & Media
The duties are to go into effect at an unspecified date, but not later than Jan . 30
News & Media
As soon as possible, but not later than the end of the third year, the candidate must have passed reading examinations in two additional foreign languages.
Academia
In Durban, governments decided to adopt a universal legal agreement on climate change as soon as possible, but not later than 2015.
Language RequirementsAs soon as possible, but not later than the end of the third year, the candidate must have passed reading examinations in two additional foreign languages.
Academia
Repair of such equipment shall be completed as soon as practical, but not later than the end of the next closed vent system shutdown.
Academia
The hearing official shall issue a final decision at the earliest practicable date, but not later than 60 days after the filing of the petition requesting the hearing.
Academia
Expert writing Tips
Best practice
When setting deadlines, clearly state the date and time using "but not later" to avoid ambiguity. For example: "Please submit the documents by Friday, but not later than 5 PM."
Common error
Avoid using "but not later" without a clearly defined reference point. Saying "Submit it, but not later" is vague. Instead, specify: "Submit it by the end of the week, but not later."
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "but not later" functions as an adverbial phrase that modifies a verb or clause by indicating a time constraint or deadline. Ludwig shows that it typically follows a specific date or time, setting an outer limit beyond which something should not occur. Ludwig AI confirms its grammatical correctness.
Frequent in
Academia
30%
News & Media
28%
Science
25%
Less common in
Formal & Business
17%
Ludwig's WRAP-UP
The phrase "but not later" is a versatile and grammatically sound way to specify deadlines or time constraints. Ludwig AI validates its correctness and common usage across various fields, especially in academia, news, and scientific writing. When using "but not later", ensure a clear reference point for the timeframe. Alternatives like "but no later than" or "at the latest" can be used to add emphasis or formality. Be precise to avoid ambiguity and ensure your communication is clear and effective.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
but no later than
Replaces "not later" with "no later than" to emphasize the deadline, adding a slight increase in formality.
but not after
Uses "after" instead of "later" to specify a time boundary, implying that something should occur before a given point in time.
but not subsequently
Replaces "later" with "subsequently", introducing a more formal and sequential tone.
but not beyond
Substitutes "later" with "beyond" to define a limit that should not be exceeded, adding a sense of constraint.
but not thereafter
Employs "thereafter" instead of "later" to indicate a point from which something should not occur, adding a touch of formality.
at the latest
Uses the phrase "at the latest" to explicitly express the final acceptable time for an event or action.
by the deadline
Specifies the constraint more directly by using a explicit deadline.
before that time
Indicates an action should happen before a mentioned time.
prior to then
Replaces "later" with "then" and "but not" with "prior to", adding a formal and temporal aspect.
not in the aftermath
Indicates an action should happen, but not after an event occurs.
FAQs
How can I use "but not later" in a sentence?
The phrase "but not later" is used to specify a deadline or timeframe. For example, "The report must be submitted by Friday, "but not later" than noon."
What phrases are similar to "but not later"?
Alternatives include "but no later than", "but not after", or "at the latest". The choice depends on the specific context and desired level of formality.
How formal is the phrase "but not later"?
The phrase "but not later" is suitable for both neutral and professional contexts. More formal alternatives exist, such as "subsequently" or "thereafter", which may be preferable in highly formal writing.
Is it redundant to use "but not later" after specifying a date?
Using "but not later" after a specific date can add emphasis and clarity, especially if there's a specific time of day that serves as the cut-off. For example, "Submit the application by August 1st, "but not later" than 5 PM" clarifies the submission deadline.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested