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How to use Date Difference Calculator

Enter a start and end date, and the tool calculates the difference between them in days, weeks, months, and years.

Frequently asked questions

Does it include both start and end dates?

By default the difference counts the days between the dates. Toggle 'include end date' to add one day, which is common for contract and rental calculations.

Can I compare dates across years?

Yes, any two dates work — even decades apart — and the result shows years, months, days plus total days and weeks.

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