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Utility Calculator
Date Difference Calculator
Free date difference calculator. Find the exact number of days, weeks, months, and years between any two dates. Useful for age, deadlines, and timelines.
Select two dates to calculate
How it Works
This tool automatically accounts for leap years, variations in month length, and timezone offsets to calculate the exact duration between any two dates on the Gregorian calendar. The calculation strips out the time of day, ensuring you receive a clean "midnight-to-midnight" count of the total days.
Frequently Asked Questions
Does it count leap years correctly?
Yes. The calculator accounts for leap years when computing the exact number of days.
Are my date inputs stored or sent to any server?
No. All calculations are run 100% locally in your web browser. No dates or calculation history are ever uploaded or transmitted.