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
april 1st
Grammar usage guide and real-world examplesUSAGE SUMMARY
"April 1st" is correct and commonly used in written English.
It refers to the first day of the month of April. Example: "I have a dentist appointment on April 1st."
✓ Grammatically correct
News & Media
Science
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
51 human-written examples
Anne Greenberg passed away Tuesday, April 1st, 2009.
News & Media
RIKEN Omics Science Center ceased to exist as of April 1st, 2013, due to RIKEN reorganization.
Science
Treatments were applied from April 1st 2005, 15 days after leaf unfolding, till June 14th.
Science
A case control study design was applied from April 1st to August 30th, 2013.
Science
VARDY--Michael Moshe, Ph.D., 79, died peacefully April 1st.
News & Media
STAROBIN--Shirley (nee Margolies), 95, passed away on April 1st.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
Lone Star Park, April 12-July 6, lonestarpark.com.com
News & Media
Deadline: 1 April 2006.
Science & Research
Nov. 9hrough Nov. 24.
News & Media
July 10.
News & Media
(atpfestival.com. Sept. 30-Oct. 2).
News & Media
Expert writing Tips
Best practice
When writing dates, ensure consistency in the format (e.g., "April 1st", "April first", or "04/01") throughout your document or article for clarity.
Common error
Avoid using incorrect ordinal numbers such as "April 1th" or "April 1rd". The correct form is "April 1st".
Source & Trust
87%
Authority and reliability
4.7/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "April 1st" primarily functions as a temporal marker, specifying a particular date. Ludwig highlights its common use in indicating when an event occurred, a deadline, or a specific point in time.
Frequent in
News & Media
44%
Science
38%
Formal & Business
7%
Less common in
Wiki
2%
Encyclopedias
1%
Reference
0%
Ludwig's WRAP-UP
In summary, "April 1st" is a commonly used phrase to denote a specific date, the first day of April. Ludwig AI confirms its grammatical correctness. It serves primarily as a temporal marker and is appropriate for a neutral register, appearing frequently in News & Media and Science contexts. While alternatives like "first of April" or "April first" exist, "April 1st" is widely understood and accepted. Remember to maintain consistency in date formatting in your writing, and be aware of the cultural significance of "April 1st" as April Fools' Day.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
first of April
Reorders the elements of the date, emphasizing the ordinal position.
April first
Presents the date in a less formal, spoken-like style.
04/01
Uses a numerical date format, common in many contexts.
April the first
Adds the definite article, slightly emphasizing the date.
1st April
Reverses the order of day and month, common in some regions.
The beginning of April
Refers to the approximate time around April 1st, not the exact date.
The first day in April
More verbose way of describing the date.
April Fools' Day
Refers to the common name for April 1st with cultural implications.
early April
Indicates a timeframe around the beginning of April.
start of April
Refers to the approximate time around April 1st, not the exact date.
FAQs
How do I properly format “April 1st” in a sentence?
When writing “April 1st”, ensure “April” is capitalized, and “1st” is used as the ordinal indicator. For example: "The event is scheduled for April 1st."
What is an alternative way to write “April 1st”?
You can also write it as “April first” or in numerical form, like “04/01” depending on the context and regional preferences.
Is there a specific cultural significance associated with “April 1st”?
Yes, “April 1st” is widely recognized as April Fools' Day, a day for pranks and lighthearted jokes.
Which is correct, “April 1st” or “1st of April”?
Both are correct, but “April 1st” is more common in American English, while “1st of April” is frequently used in British English. Choose the format appropriate for your audience.
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
87%
Authority and reliability
4.7/5
Expert rating
Real-world application tested