Calculate the precise difference between two dates in days, weeks, months, or years. Works entirely client-side in the browser.
How to use it
- Pick the start date.
- Pick the end date.
- Read the difference in days, weeks, months and years.
Frequently asked questions
Are leap years handled?
Yes. Every 29 February in the interval is counted, including the century rule that skips years such as 1900.
Why is the number of months not a round figure?
Because months are between 28 and 31 days long. Counting in whole months and counting in days will not agree, so both are shown.
Is the end date included?
The result is the interval between the two dates. If you are counting days of a stay or a booking, add one to include the final day.