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How to set date to first of month in Excel?

Author: Xiaoyang Last Modified: 2020-11-19
doc get first day of month 1

If you have a list of random dates, how could you convert them to the first day of these given month as following screenshot shown? This article, I will introduce some simple formulas to solve this task in Excel.

Set or convert date to first day of given month with formulas


arrow blue right bubble Set or convert date to first day of given month with formulas

Here are some handy formulas can help you to convert a random date to the first day of the month, please do as follows:

Enter this formula: =EOMONTH(A2,-1)+1 into a blank cell where you want to output the result, and then drag the fill handle down to the cells which you want to apply this formula, and all dates have been converted to the first day of month, see screenshot:

doc get first day of month 2

Notes:

1. Here is another formula also can help you: =DATE(YEAR(A2),MONTH(A2),1).

2. In above formulas, A2 is the date cell that you want to convert.

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