In this comprehensive guide, we will explore everything you need to know about the MONTH function in Excel. The MONTH function is a useful tool that allows you to extract the month from a given date as a numerical value. This can be particularly helpful when working with large datasets containing dates, as it enables you to quickly identify and analyze data based on the month.

MONTH Syntax

The syntax for the MONTH function in Excel is quite simple:


Where serial_number is the date from which you want to extract the month. The date can be entered as a cell reference, a date value enclosed in quotation marks, or a formula that returns a date.

MONTH Examples

Let’s take a look at some examples of how to use the MONTH function in Excel:

Example 1: Basic usage

If you have a date in cell A1 (e.g., “2022-01-15”), you can use the MONTH function to extract the month from the date:


This formula will return the value 1, as January is the first month of the year.

Example 2: Using a date value

You can also use a date value directly in the MONTH function:


This formula will return the value 6, as June is the sixth month of the year.

Example 3: Using a formula that returns a date

If you have a formula that returns a date, you can use the MONTH function to extract the month from the resulting date. For example, if you have the following formula in cell A1:

=DATE(2022, 12, 25)

You can use the MONTH function to extract the month from the date returned by the formula:


This formula will return the value 12, as December is the twelfth month of the year.

MONTH Tips & Tricks

Here are some tips and tricks to help you get the most out of the MONTH function in Excel:

Tip 1: Combine with other functions

You can combine the MONTH function with other functions to perform more complex calculations. For example, you can use the IF function to check if the month of a given date is equal to a specific value:

=IF(MONTH(A1) = 6, “June”, “Not June”)

This formula will return “June” if the month of the date in cell A1 is 6 (June), and “Not June” otherwise.

Tip 2: Use with conditional formatting

You can use the MONTH function with conditional formatting to highlight cells containing dates that fall within a specific month. For example, you can apply a conditional formatting rule to a range of cells containing dates, using a formula like this:

=MONTH(A1) = 12

This formula will apply the conditional formatting to cells with dates in December.

Common Mistakes When Using MONTH

Here are some common mistakes to avoid when using the MONTH function in Excel:

Mistake 1: Using an invalid date

If you use an invalid date as the serial_number argument, the MONTH function will return a #VALUE! error. Make sure to use a valid date format, such as “YYYY-MM-DD” or “MM/DD/YYYY”.

Mistake 2: Forgetting to use quotation marks for date values

If you’re using a date value directly in the MONTH function, make sure to enclose it in quotation marks. Otherwise, Excel may interpret the date as a mathematical expression, which can lead to unexpected results or errors.

Why Isn’t My MONTH Function Working?

If your MONTH function isn’t working as expected, consider the following possible issues:

Issue 1: Incorrect date format

Ensure that the date you’re using as the serial_number argument is in a valid date format. Excel may not recognize dates in non-standard formats, which can cause the MONTH function to return incorrect results or errors.

Issue 2: Cell formatting

If the cell containing the MONTH function is formatted as a date, the result may be displayed as a date instead of a numerical value. To fix this, change the cell formatting to “General” or “Number”.

MONTH: Related Formulae

Here are some related formulae that you may find useful when working with dates in Excel:

1. DAY: The DAY function extracts the day of the month from a given date as a numerical value.


2. YEAR: The YEAR function extracts the year from a given date as a numerical value.


3. EOMONTH: The EOMONTH function returns the last day of the month for a given date, with an optional offset to specify a different month.

=EOMONTH(serial_number, months)

4. DATE: The DATE function creates a date value based on specified year, month, and day values.

=DATE(year, month, day)

5. WEEKNUM: The WEEKNUM function calculates the week number of a given date, based on an optional week numbering system.

=WEEKNUM(serial_number, [return_type])

By mastering the MONTH function and related formulae, you can efficiently analyze and manipulate date data in Excel, making your spreadsheets more powerful and versatile.


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