Excel DAY function
If you want to extract the day numbers from a list of date in your Excel worksheet, the DAY function in Excel can do you a favor. With the DAY function, you can quickly get the day as a number from 1 to 31 based on the given dates.
The syntax for the DAY function in Excel is:
Return the day as a number (1-31) from a specific date.
To extract only the day numbers from given dates, please apply the below formula, and then, drag fill handle to fill the formula to cells you use, now all day numbers have been displayed as following screenshot shown:
Note: In the above formula, A2 is the cell contains the date you want to use.
Tips: You can also replace the cell reference in the above formulas with the date text string, such as: