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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
date of change
Grammar usage guide and real-world examplesUSAGE SUMMARY
"date of change" is a correct and usable phrase in written English.
You can use it to refer to the date on which a certain change is supposed to take place. For example: "Please confirm the date of change for the new policy."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
effective date
implementation date
date of effect
date of modification
dates of changes
modification date
revision date
changeover date
commencement date
anniversary of change
target of change
day of change
beginning of change
months of change
data of change
questions of change
instruments of change
versions of change
observations of change
periods of change
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
The information about the provenance of all changes is available to the users, i.e., the changed identifier, the date of change, and the acting team member is transparent for all users.
Science
Now would be a good time to use it, as you've got until the date of change (October 31st) to make good on it, else you've "accepted the change".
News & Media
This date of change is determined as (t + x)/2 if t + x is even or as (t + x + 1)/2 if t + x is an odd number, with t and x, t < x, denoting the years of two adjacent waves in which union membership information is available.
Finance professors Honghui Chen, Gregory Noronha and Vijay Singal say arbs quickly buy stocks to be added and short those departing, while managers of index funds based on those lists act only on the date of change, when prices are unfavorable.
News & Media
To reduce the impact of such biases we selected articles sequentially by order of submission, starting from the date of change of review model.
Science
In the Journal of Inflammation, we analysed 200 reviewer reports for research manuscripts submitted consecutively counting back from the date of change of peer review model (under open peer review), and 200 counting forward (under single-blind peer review).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
A total of 34 439 male British doctors, who reported their smoking habits in November 1951, were followed, with periodic up date of changes in their habits, until death, emigration, censoring.
Science
The Norwegian National Population Register provided information on date of birth, date of death or migration, dates of changes in marital status, and dates of birth of all children.
Science
Pregnancies and other life events were first marked on a month-by-month family planning calendar to serve as a frame of reference and to aid recalling dates of changes in contraceptive use over time.
Science
We used data from the Danish Civil Registration System [ 14] to obtain a large and representative set of data on Danish persons, which for all persons included current and historical information on addresses in Denmark and Greenland, and emigrations and immigrations to and from other countries together with exact dates of changes of residence.
Science
b) You must cause the files modified to carry prominent notices stating that you changed the files and the date of any change.
News & Media
Expert writing Tips
Best practice
When using "date of change" in technical documentation, specify the time zone to avoid ambiguity, especially in global contexts.
Common error
Avoid using "date of change" when referring to a range of dates over which a change occurs. Instead, use "period of change" or specify a start and end date.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "date of change" functions as a noun phrase or an adverbial modifier, specifying when a particular modification, alteration, or transition occurs. Ludwig confirms this is a standard English phrase.
Frequent in
Science
30%
News & Media
30%
Formal & Business
20%
Less common in
Wiki
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "date of change" is a common and grammatically correct phrase used to specify when a modification or alteration takes effect. As Ludwig AI confirms, it’s suitable for various contexts, including science, news, and formal business settings. When using this phrase, ensure you clarify the scope of the change and the specific time zone to avoid any ambiguity. Consider alternatives like ""effective date"" or "implementation date" for more formal situations. While versatile, it's important to use "dates of changes" when referring to multiple changes.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
effective date
Focuses on when a change comes into effect.
implementation date
Highlights the date when a change is put into practice.
date of effect
Emphasizes when the change begins to have an impact.
modification date
Stresses the date on which something was modified.
revision date
Indicates the date when a revision was made.
changeover date
Specifies the date of a complete change or transition.
alteration date
Highlights the date on which something was altered.
commencement date
Focuses on the date when something begins or commences after a change.
switchover date
Specifies the date of a switch or shift from one thing to another.
point of modification
Indicates a specific moment when modification happens.
FAQs
How do you use "date of change" in a sentence?
You can use "date of change" to specify when a modification becomes effective. For example, "Please note the "effective date" of the new policy is January 1, 2026."
What's a more formal alternative to "date of change"?
A more formal alternative would be "implementation date" or "date of effect", particularly in legal or official contexts.
Is "date of change" the same as "date of modification"?
While similar, "date of change" is broader. "Date of modification" specifically refers to when something was altered, whereas "date of change" can refer to when a new policy or system takes effect.
Can I use "date of change" to refer to multiple changes?
While grammatically correct, it's clearer to use "dates of changes" when referring to multiple distinct changes, to avoid ambiguity.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested