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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
before close of day
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "before close of day" is correct and usable in written English.
You can use it when you are referring to a deadline or a timeframe. For example, "I need to have this project finished before close of day."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(5)
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
1 human-written examples
Right before close of day, the day was miraculously there again.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
They usually must begin some time on a Thursday and end before close of business on Monday.
Wiki
There are more immediate deadlines, since a new nominated advisor - the firm which manages a company's listing on the stock exchange - needs to be appointed before close of business on Thursday.
News & Media
They are going to need moments of luck and moments of brilliance to prise batsmen out, and that's why the extraordinary slip catch taken by Chris Jordan to dismiss Darren Bravo for 32 a few overs before close of play on Thursday could be so crucial.
News & Media
Even now, as the festival winds down before closing on Monday, hundreds of actors are walking the streets of Edinburgh, thrusting promotional flyers into the hands of random passers-by and trying desperately to make two-second cases for themselves.
News & Media
(Cotter) Lucy Dodd: 'The Studio Before 54' (closes on Sunday) The impressive solo debut of this recent graduate of Bard College features three enormous paintings as wry as they are beautiful and spatially startling.
News & Media
Lazard shares (LAZ) were halted before the close of trading Wednesday pending an announcement.
News & Media
As is indicated by the decline in Tesla shares and the rise in SolarCity shares (up by more than 4% just before the close of trading Wednesday), this deal is a boon for the latter.
News & Media
We compute daily log returns from the last mid-quotes before the closing auction: begin{aligned} R_{i,t},=,log left( frac{text{ask}_{i,t},+,text{bid}_{i,t}}{text{ask}_{i,t,-,1},+ text{bid}_{i,t,-,1}}right), end{aligned} (1 where (text{ask}_{i,t}) is the last ask quote for stock i before the closing auction of day t and (text{bid}_{i,t}) the corresponding bid quote.
Science
We compute daily log returns from the last mid-quotes before the closing auction: begin{aligned} R_{i,t}=log left( frac{{text {ask}}_{i,t}+{text {bid}}_{i,t}}{{text {ask}}_{i,t-1}+{ text {bid}}_{i,t-1}}right), end{aligned} (2 where ({text {ask}}_{i,t}ldots) is the last ask quote for stock i before the closing auction of day t and ({text {bid}}_{i,t}ldots) is the corresponding bid quote.
Science
The announcement still happens after the close of one day and before the open of another.
News & Media
Expert writing Tips
Best practice
Use "before close of day" when you need to set a clear, but relatively general, deadline that falls within the same working day. This avoids ambiguity around time zones or specific times.
Common error
Don't use "before close of day" if you need to specify a precise time. If a specific hour is required, state that instead (e.g. "by 5 PM"). Using a general time might cause delays or misunderstandings.
Source & Trust
83%
Authority and reliability
4.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "before close of day" functions as an adverbial phrase specifying a timeframe or deadline. It modifies a verb by indicating when an action needs to be completed, typically within the same working day. As Ludwig AI explains, this phrase is correct in written English and refers to a deadline or timeframe.
Frequent in
News & Media
33%
Wiki
33%
Science
33%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "before close of day" is a grammatically correct adverbial phrase used to indicate a deadline within the same day. While Ludwig AI affirms its usability in written English, its frequency is rare. It serves the purpose of setting a clear, but relatively flexible, timeframe. Its register is typically neutral to professional making it suitable for emails and other professional communications. Common alternative include "by end of day" or "prior to the end of the day". When using this phrase, ensure it aligns with the intended level of precision and clarity, as specifying a specific time might be more appropriate in certain contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
by end of day
Replaces "close" with "end", maintaining the sense of a daily deadline.
by day's end
A shortened version indicating the same timeframe.
before the day's end
Reorders the phrase slightly for a different flow.
by the end of the business day
Specifies the deadline more explicitly, focusing on business hours.
prior to the end of the day
Uses more formal language like "prior to" for a similar meaning.
before the end of business hours
Focuses specifically on the operational hours of a business.
before day's conclusion
Uses a more formal and literary term for the end of the day.
before the deadline
Generalizes the timeframe to any deadline, not just the end of the day.
prior to sunset
Uses a natural event as a temporal marker.
by quitting time
Uses an informal term for the end of the workday.
FAQs
How can I use "before close of day" in a sentence?
You can use "before close of day" to indicate a deadline that falls within the same working day. For example, "Please submit your reports "by end of day"".
What's a more formal alternative to "before close of day"?
A more formal alternative is "prior to the end of the day". This substitutes "before" with "prior to" for a more professional tone.
What's the difference between "before close of day" and "by the end of the business day"?
"Before close of day" is more general and could apply to any day, while "by the end of the business day" specifically refers to the end of working hours.
When is it inappropriate to use "before close of day"?
Avoid using "before close of day" if you need to specify a precise deadline (like a specific hour) or if the deadline extends beyond a single day. Use a more specific timeframe like "before 5 PM" or "by tomorrow" instead.
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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
83%
Authority and reliability
4.2/5
Expert rating
Real-world application tested