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
value of days
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "value of days" is correct and usable in written English.
It can be used to express the significance or worth of time, often in a reflective or philosophical context. Example: "As I grow older, I begin to appreciate the true value of days spent with loved ones."
✓ Grammatically correct
Science
Encyclopedias
News & Media
Alternative expressions(1)
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
8 human-written examples
Although we found an increase in headache days, the highest estimated mean value of days was 1.05 at wave four.
For patients who had a summed days supply > 358, the value of days covered was set as 358.
Science
Mean value of days of duty, including weekends, in a month was 6 (ranging from 0 to 9; SD= 2).
Science
This was calculated using the human capital method, which considers the value of days lost to absenteeism, equal to the value of lost productivity.
Science
20, 23, 37, 49, 51 Most studies included days of lost wages, 23, 49 and some included the value of days children were absent from school.
More information on utility losses associated with urinary tract infection symptoms would be important in determining the value of days of symptoms avoided and hence in informing the care of affected patients.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
Further observations in the 5 GBS patients who relapsed within 28 days after IVIg give further comfort to the prognostic value of day 7 plasmacytosis.
Science
The area under the curve of DNA values of days 2 4 after start of therapy (AUC 2 4) discriminated between both groups with a sensitivity of 56% at a specificity of 100%.
Science
Patient delay had a median value of 30 days (IQR 14 60 days) and a mean value of 71.37 days (SD 133.94).
Science
Time to response ranged between 26 days and 113 days, with a median value of 56 days.
Science
A latent period of between 7 and 29 days (with a most likely value of 14 days) and an infectious period of between 14 and 21 days (with a most likely value of 17 days) were parameterised using beta-PERT distributions [ 16] (pp. 275).
Expert writing Tips
Best practice
In reflective writing, use the phrase to underscore the emotional or personal significance of specific periods.
Common error
Avoid using "value of days" when referring to the quantity of days, instead focus on using it to describe the worth, impact, or cost associated with those days.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "value of days" functions primarily as a noun phrase, often acting as the subject or object of a sentence. It quantifies the worth or importance associated with a period of time, frequently in contexts related to economics, productivity, or personal reflection. As supported by Ludwig, the phrase is grammatically correct and usable.
Frequent in
Science
60%
Encyclopedias
20%
News & Media
20%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "value of days" is a grammatically sound noun phrase used to express the worth, importance, or economic impact associated with time. While not extremely common, it is found across various domains, including science, encyclopedias, and news media. Ludwig AI confirms its correctness and provides examples across these contexts. When writing, remember to focus on the worth, impact, or cost associated with days rather than the quantity of the days.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
worth of days
Focuses on the inherent worth or merit of time.
importance of days
Highlights the significance and impact that days can have.
significance of days
Emphasizes the notable or important quality of days.
impact of days
Focuses on the effect or influence that days have.
meaning of days
Explores the deeper significance or purpose behind each day.
preciousness of days
Highlights how valuable and cherished each day is.
benefit of days
Emphasizes the advantages or positive outcomes derived from time.
utility of days
Focuses on the practical usefulness and efficiency of time.
advantage of days
Highlights the favorable or beneficial aspects of time.
merit of days
Stresses the commendable or praiseworthy aspects of time.
FAQs
How can I use "value of days" in a sentence?
You can use "value of days" to express the economic impact of time, as in, "The economic "value of bed days" released by the prevention of CR-BSI was assessed from two alternate perspectives."
What is the difference between "value of days" and "worth of days"?
"Worth of days" often refers to the intrinsic merit or importance of time, while "value of days" can also encompass economic or practical considerations.
When is it appropriate to use "importance of days" instead of "value of days"?
Use "importance of days" when emphasizing the significance or impact of time, rather than its economic or quantifiable worth.
Can "value of days" refer to the number of days?
No, "value of days" typically refers to the worth, impact, or cost associated with time, not simply the quantity of days. Use "number of days" or "amount of days" when referring to quantity.
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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested