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
January through December
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "January through December" is correct and usable in written English.
It can be used to refer to the entire year, indicating a time span from the beginning of January to the end of December. Example: "The store is open every day, January through December, to accommodate all our customers."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(6)
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
From January through December, there were just 1,410 transactions nationwide, valued at $49.3 billion, versus 4,410, valued at $207.2 billion, for the corresponding period in 2007, according to the latest data from Real Capital Analytics, a research company.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
The authority budget normally runs from January through December.
News & Media
He died last September.
News & Media
(It reopened last December).
News & Media
11 last December.
News & Media
Two consuls were elected for an annual term (from January through December) by the assembly of Roman soldiers, the Century Assembly.
Wiki
Shows run from the end of January through December, with 75 to 300 exhibitors apiece.
News & Media
July 20-Aug.
News & Media
Nobody blinks until late July, early August.
News & Media
Real Betis in late October, early November.
News & Media
Last August, the A.C.L.U.
News & Media
Expert writing Tips
Best practice
When specifying a time range spanning a full year, use "January through December" for clarity and completeness. This is especially useful in formal documents or reports.
Common error
Avoid shortening the phrase to "January to December" when you intend to convey the entire year. While acceptable, using "through" adds a sense of completeness.
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "January through December" functions as a time specifier, denoting a period that encompasses the entirety of a calendar year. As Ludwig AI explains, this phrase precisely marks the temporal boundaries.
Frequent in
News & Media
60%
Wiki
30%
Formal & Business
10%
Less common in
Encyclopedias
0%
Science
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "January through December" clearly defines a time span covering the entirety of a calendar year. While grammatically correct and readily understood, its frequency is relatively rare. As Ludwig AI highlights, it is used across various domains like News & Media and Encyclopedias and is best suited for scenarios requiring precision when describing year-long periods. While other simpler alternatives such as "all year round" or "the entire year" exist, the phrase "January through December" remains a suitable option when a formal and comprehensive tone is desired.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
from January to December
Omits the word 'through', resulting in a slightly more concise version.
full calendar year
Emphasizes that the period covers the entire calendar year.
all year round
Generalizes the time period to the entire year, without specifying the exact months.
the entire year
Similar to 'all year round', but emphasizes the completeness of the year.
an entire year
Similar to 'the entire year' but can also include emphasis.
the whole year
An alternative to "the entire year", using 'whole' instead of 'entire'.
year-long
Adjectival form indicating duration throughout the year.
over the course of a year
Describes a period of time that unfolds throughout a year.
twelve months
Specifies the duration in terms of the number of months.
from the beginning to the end of the year
Explicitly states the start and end points of the yearly period.
FAQs
What does the phrase "January through December" mean?
The phrase "January through December" signifies the entire duration of a calendar year, encompassing all twelve months from the beginning to the end.
Is it grammatically correct to say "January through December"?
Yes, it is grammatically correct. The phrase accurately specifies a time period spanning the entire year.
What is the difference between "January through December" and "January to December"?
While both phrases indicate the entire year, "January through December" provides a slightly more complete and formal tone, emphasizing the inclusion of all months. "January to December" is also correct and more concise.
What are some alternatives to saying "January through December"?
Alternatives include "all year round", "the entire year", or simply "yearly", depending on the context.
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
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested