DATE function

This function will convert a day, month and year to a serial number that Excel uses for date values.


DATE(Year, Month, Day)

  • Year (required) – This is the year number from 1900 to 9999.
  • Month (required) – This is the month number from 1 to 12.
  • Day (required) – This is the day number from 1 to 31.


In this example we create a few dates by reference to a year, month and day. Notice that if we use a month greater than 12 or a day greater than the actual number of days in the month, then the result rolls over into the next month or year.



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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