The Excel MONTH Function

Basic Description

The Excel MONTH function, returns an integer representing the month of the year (from 1 - 12) of a supplied date.

The format of the Month function is :

MONTH( date )

where the date argument can be supplied to the function as either :


Warning: If you attempt to input the date argument as text, there is a chance that Excel may misinterpret this, depending on the date system, or date interpretation settings on your computer.

Also, although you can input the date as a serial number, this is not recommended, as the serial numbers may vary across different computer systems.

Month Function Examples

The following example shows the month function used to extract the month from 3 different dates.

129-May-2008=MONTH( A1 )
205-Mar-1984=MONTH( A2 )
3 =MONTH( DATE(2010, 7, 1) )
3 7

Note that, in the above examples, as recommended by Microsoft, the date value is always supplied as either a reference to a cell containing a date, or as a value returned from another function.

Further examples of the Excel Month function can be found on the Microsoft Office website.

Excel Month Function Common Problem

Common Problem:

The result of your Month function looks like a date (eg. "01/01/1900"), instead of returning an integer.


This problem arises because the new cell or column is formatted as a 'date'. In this case, it is only the formatting of the cell that is wrong, NOT the value returned by the function.

To correct this,

  • Highlight the cell(s) containing the result
  • Right click with the mouse
  • Select the Format Cells ... option and ensure the Number tab is selected
  • Under the Category heading, select the option General and click OK

- Read more about Excel Formatting here