Time Between Dates Calculator

How it works

1. Enter a start date and an end date.
2. Click “Calculate” to see the difference in days, weeks, and months.
3. Change the dates to compare different time spans.

Calculation

Days between = End date − Start date

The result counts calendar days between the two dates, including leap years.
The end date is not included by default.

FAQ

Does this calculator include leap years?
Yes. The tool automatically accounts for leap years and the extra day in February when applicable.

Does the result include the end date?
By default, the difference is exclusive of the end date. If you need to include it, add one to the result.

Can I calculate negative differences?
If you enter the dates in reverse, the result will still show the correct number of days, but you can swap them if you prefer a positive interval.