Excel automatically recognizes common formats, such as "3/17/2012," "Mar 17, 2012" or "17 Mar 2012." Use the Month function to extract the month number from a referenced cell.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

How many days? Excel doesn’t offer a function that returns the total number of days in a specified month, and before EOMONTH () came around, an expression to do so was complex.

To extract and sort non-adjacent arrays in your data, nest the CHOOSECOLS or CHOOSEROWS functions inside your SORT or SORTBY ...

How to use a DAYS function in Excel In this tutorial, we will find the number of days between the dates in the month. Click the cell where you want to see the result, then type =DAYS (A3, B3).