How to Calculate Number of Days in a Month Using Excel Formula

Learn the Excel formula to find the number of days in any month using EOMONTH and DAY functions.

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To calculate the number of days in a month in Excel, use the formula: `=DAY(EOMONTH(A1, 0))`. Replace A1 with the cell containing your date. EOMONTH returns the last day of the month for a specified date, and DAY extracts the day part of that date, effectively giving the total days in the month.

FAQs & Answers

  1. What does the EOMONTH function do in Excel? The EOMONTH function returns the serial number of the last day of the month, a specified number of months before or after a given date.
  2. How can I calculate the number of days in a month without using VBA? You can use the formula =DAY(EOMONTH(date, 0)) to calculate the total days in the month of the given date without any VBA.
  3. Can this formula handle leap years? Yes, since EOMONTH accurately returns the last day of February in leap years, the formula accounts for leap year day counts automatically.