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Date difference calculator
Find the number of calendar days between two dates.
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How to use date difference calculator
Choose a start date and an end date, then calculate the difference.
Things worth knowing
Dates are compared in UTC to avoid daylight-saving shifts. The result excludes the end date unless you choose inclusive counting.
Is my input saved or uploaded?
Your input is processed locally and is not saved by this site. Reloading or leaving the page clears your work. Copy or download anything you want to keep. Only saved and recent tool IDs are stored on this device.