Explosion Tools

Date Calculator

Calculate the difference between two dates or add/subtract days from a date.. Free, no signup, works in your browser.

All calculations happen in your browser. No data is sent to any server.

About Date Calculator

This free date calculator helps you find the exact duration between two dates in days, weeks, months, and years. You can also add or subtract days, weeks, or months from any date to find a future or past date. Useful for project planning, age calculations, and deadline tracking.

Frequently Asked Questions

How do I calculate days between two dates?
Enter a start date and end date. The calculator instantly shows the difference in days, weeks, months, and years.
Can I add days to a date?
Yes. Switch to Add/Subtract mode, enter a start date and the number of days, weeks, or months to add or subtract.
Does it account for leap years?
Yes. The calculator correctly handles leap years, varying month lengths, and all calendar edge cases.

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