The EOMONTH function – Formula Friday

Use the EOMONTH function to get the last day of a month

The EOMONTH function is one of those little gems in Excel that can save you a lot of trouble. It’s a simple function that does just one thing: given a date, it returns the last day of a month.

This may seem a little silly — how hard can it be to figure out the last day of a month? — but it’s actually a bit tricky, since each month has a different numbers of days, and February changes in leap years.

Dave Bruns

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