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
on individual days
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on individual days" is correct and usable in written English.
It can be used when referring to specific days, often in the context of scheduling or events that occur separately on different days. Example: "The event will take place on individual days throughout the month of June."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
on previous days
on rainy days
on warm days
a day together
one day apart
a week apart
two gifts in a row
two questions in a row
on specific days
two Tests in a row
a day apart
on windy days
on particular days
in separate stages
in individual days
on consequent days
day by day
in different days
two months in a row
on chilly days
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
14 human-written examples
"Mobile has put shoppers in the driver's seat this year, and they expect great deals and gift ideas throughout the holiday season, rather than just on individual days," Jay Hanson, VP of Merchandising at eBay tells TechCrunch.
News & Media
The Thai zodiac puts great importance on individual days.
News & Media
Despite some minor variations in CFU on individual days we found a consistently high level of phagocytosis, a reproducible decrease in cultivable bacteria 4 5 days post-phagocytosis, and the sudden growth of S. aureus on day 5 6 which occurred simultaneously with, or proceeding, macrophages lysis.
Science
The challenge is individual scene analysis on individual days.
We determined whether progeny production on individual days was predictive of somatic aging.
Science
First, we had small numbers of falls on individual days with respect to the drug change.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
The measurement campaign occurred during the winter (on 11 individual days, with the first on 13 January and the last on 11 February), summer (17 days between 8 July and 3 September), and autumn (6 days between 22 November and 2 December) of 2009.
The cohort studied represents a convenience sample of emergency-department patients with triage capillary blood glucose ≥250 mg/dL enrolled on 320 individual days over a 2-year period based on research-assistant availability.
Science
Yeah!" Assuming the Devils win the cup, what will they do with it on their individual days of possession?
News & Media
The rate of admissions on the individual days of the week did not show any significant differences (p = 0.252), although there was a difference between the admission rate of 58.6% on workdays and 52.8% at weekends (p = 0.019).
Science
In contrast, in Pomc−/− /Tg/+ mice, AgRP had no effect on food intake within the first 24 h or on any of the individual days studied after administration.
Science
Expert writing Tips
Best practice
Use "on individual days" to emphasize that actions or events occur separately and not as a continuous block. This clarity is particularly useful in scientific research or scheduling contexts.
Common error
Avoid using "on individual days" when a simpler phrase like "on different days" or "each day" would suffice. Overusing the phrase can make your writing sound unnecessarily formal or complex.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on individual days" functions primarily as an adverbial phrase, modifying a verb or clause to specify when an action occurs. It indicates that an event takes place on separate, distinct days, rather than continuously. Ludwig examples show its use in scientific and commercial contexts.
Frequent in
Science
75%
News & Media
20%
Formal & Business
5%
Less common in
Social Media
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "on individual days" is a grammatically correct and usable phrase, albeit somewhat uncommon. Ludwig AI confirms its correctness. It functions as an adverbial phrase to specify that actions or events occur separately and distinctly across different days. This phrase is most frequently used in scientific and news contexts to emphasize the temporal separation of events. While correct, it's important to use the phrase judiciously, as simpler alternatives like "on different days" may be more appropriate in some situations. Using it effectively means ensuring that the individuality or separation of the days is a relevant aspect of the communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
on separate days
Emphasizes the distinct nature of each day.
on distinct days
Highlights the uniqueness and non-overlapping nature of the days.
on particular days
Focuses on specific, rather than general, days.
on specific days
Similar to 'particular', but slightly more direct.
on different days
Indicates a variety or range of days.
on various days
Implies multiple days with potential differences between them.
on respective days
Suggests a connection between the day and something else specific to that day.
day by day
Focuses on a progression through individual days.
each day individually
Highlights the consideration of each day as a unique unit.
from day to day
Emphasizes the changing nature of things over a series of days.
FAQs
How can I use "on individual days" in a sentence?
You can use "on individual days" to specify that something happens separately on different days, such as "The experiment was conducted on individual days to ensure accurate data collection".
What's the difference between "on individual days" and "on different days"?
While similar, "on individual days" emphasizes the distinctness of each day, whereas "on different days" simply highlights that the days are not the same.
Is it better to say "on individual days" or "each day"?
It depends on the context. "Each day" is more general, while "on individual days" is more specific, suggesting a focus on the unique characteristics of each day. Use "each day" unless the individuality of the days is important.
What are some alternatives to "on individual days"?
Alternatives include "on separate days", "on specific days", or "on particular days", depending on the specific nuance you want to convey.
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
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested