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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
upon the date of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "upon the date of" is correct and usable in written English.
It is typically used in formal contexts to specify a particular date when an event occurs or an action takes place. Example: "The contract will be effective upon the date of signing by both parties."
✓ Grammatically correct
Science
Wiki
News & Media
Alternative expressions(20)
on the date of
on that day
when
as of the date of
at the time of
from the date of
subsequent to the date of
as at the date of
on or before the date of
no later than the date of
as of
at the point in time of
as at
in effect on the date of
as at the completion of
as at the end of
date in effect
effective date
date of effect
commencement date
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
Accumulation of follow-up time ceased upon the date of the first diagnosis of a cancer, death, or return of the 2006 questionnaire, whichever came first.
Science
The schools were contacted to agree upon the date of the visit, and to organize the written and video questionnaire ensuring a place to implement both questionnaires properly.
Science
If you were discharged from the military for your disability, obtain your DD 214 form, which you received upon the date of your military discharge.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
He recorded his impression in his Bibliographical Decameron (1817): "Yet how can I omit to mention, with the distinction which it merits, the very beautiful, if not matchless, copy of Theodore Gaza's Latin version of Aristotle upon Animals, of the date of 1476, in folio, UPON VELLUM, from the press of John of Cologne – of which my friend Sir MM Sykes is the fortunate possessor?!
News & Media
The statue is of a robed female figure representing Libertas, the Roman goddess, who bears a torch and a tabula ansata (a tablet evoking the law) upon which is inscribed the date of the American Declaration of Independence, July 4, 1776.
Wiki
Based upon facts and circumstances as of the date of announcement, Liberty Global believes that the share exchange as structured may not be taxable to U.S. shareholders of Liberty Global.
News & Media
This provided at least an additional five years of observation after the date of analysis upon which the early predictions were made.
Science
Historians have not been able to agree upon the date for the original compilation of the list.
Wiki
Upon the date for explantation, the distal 2/5 of the specimens were frozen in liquid nitrogen, stored in -70°C fridge before sent to further RNA isolation and qPCR analysis.
Science
Person-years (PY) at cancer risk were measured from the date of first renal transplant and ended upon at tumour diagnosis, death, or date of last follow-up visit, whichever occurred first.
Science
Time to disease progression was calculated from the date of starting treatment until the date upon which disease progression was first recorded.
Science
Expert writing Tips
Best practice
When using "upon the date of", ensure it fits the formal tone of your writing. In less formal contexts, "on the date of" is generally preferred.
Common error
Avoid using "upon the date of" in informal contexts. Using more common alternatives like "on" or "at" keeps your writing accessible and natural.
Source & Trust
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon the date of" functions as a prepositional phrase that modifies a noun or verb, specifying a particular point in time. It is used to indicate when something occurs or becomes effective. Ludwig confirms that the phrase is grammatically correct.
Frequent in
Science
50%
Wiki
25%
News & Media
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "upon the date of" is a grammatically correct prepositional phrase used to specify a particular point in time, but Ludwig indicates it carries a formal tone and is relatively rare in everyday language. While acceptable, simpler alternatives like "on the date of" are often preferred in less formal contexts. It's most suitable for legal, official, and scientific documents where precision and formality are valued. Pay attention to context to ensure your writing remains clear and accessible.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
on the date of
Replaces "upon" with "on", making it more common and slightly less formal.
as of the date of
Adds emphasis on the starting point from which something is calculated or considered.
at the time of
Focuses on the moment when something occurred.
from the date of
Indicates a starting point for a duration or period.
following the date of
Specifies what happens subsequently to a specific date.
subsequent to the date of
More formal alternative indicating what comes after a specific date.
on or after the date of
Includes the specific date as well as any date following it.
by the date of
Sets a deadline or latest possible date for something.
before the date of
Sets the earliest possible date for something.
prior to the date of
More formal alternative indicating what happens before a specific date.
FAQs
What is the difference between "on the date of" and "upon the date of"?
While both phrases refer to a specific day, "on the date of" is more common and versatile. "Upon the date of" carries a slightly more formal tone and is best suited for legal or official documents.
Can I use "upon the date of" in everyday conversation?
While grammatically correct, "upon the date of" is rarely used in everyday conversation. It is more appropriate to use simpler alternatives like "on that day" or "when".
What phrases are similar to "upon the date of"?
Similar phrases include "as of the date of", "at the time of", and "from the date of", each carrying slightly different nuances related to specifying time.
How do I decide when to use "upon the date of"?
Use "upon the date of" in formal writing, such as contracts or official notices, where a precise and somewhat elevated tone is desired. In other contexts, simpler alternatives like "on" or "at" are generally preferable.
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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
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested