DAY function

This function will take a date in any format and return the day as an integer from 1 to 31. Numbers not formatted as a date will return a day value as long as the number is in the range 1 to 2,958,465 as this corresponds to the date range 01/01/1900 to 31/12/9999.



  • Date (required) – This is the date value that you want to return the day from.


In this example we use the function on several dates in different formats. Notice the text values we try result in a #VALUE! error while numerical values outside of the range 1 to 2,958,465 result in a #NUM! error.



About the Author

John MacDougall

John MacDougall

John is a Microsoft MVP and qualified actuary with over 15 years of experience. He has worked in a variety of industries, including insurance, ad tech, and most recently Power Platform consulting. He is a keen problem solver and has a passion for using technology to make businesses more efficient.


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