Date Difference Calculator

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Find the time between two dates in years, months, days and weeks.

How the calculation works

The calculator counts whole years, months and days between the two dates. It also shows the total number of days and the weeks and days.

Formula used

Total days = (end date − start date) ÷ 86,400,000 ms

Example

From 1 January 2026 to 1 March 2026 is 59 days, or 2 months.

Frequently asked questions

Is the end date counted?

The result is the elapsed time between the two dates, not inclusive of both.

Does the order matter?

No. The calculator swaps them if needed.

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Results are estimates for general information only and are not professional financial, medical or legal advice.