End of Month Calculator
Find the last calendar day of any month for any year, with leap-year support.
How to use this tool
- Enter any date in the month in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your last day of month and the full breakdown beneath it.
Find the last calendar day of any month for any year, with leap-year support.
Frequently asked questions
- Does this handle February in leap years?
- Yes — it returns February 29 in leap years and February 28 in common years.
- How do I use this?
- Pick any date within the month you are interested in. The calculator always returns the last day of that month.