Date Difference Calculator
Calculate precise date differences for project planning, age calculation, anniversary counting, and deadline tracking. Shows total days, weeks and remaining days, approximate months, and approximate years. Handles both past and future dates, and highlights when the end date precedes the start date.
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Total Days
0w 0d
Weeks + Days
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Approx. Months
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Approx. Years
How to Use Date Difference Calculator
- 1Select a start date
- 2Select an end date
- 3View the difference in days, weeks, months, and years
- 4Useful for project timelines, age, and countdowns
Your Privacy is Protected
Date Difference Calculator runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
No server uploadNo account required100% freeWorks on all devices
Frequently Asked Questions
How is the month difference calculated?
The month difference is calculated by multiplying the year difference by 12 and adding the month offset, giving an approximate calendar month count.
Why Use This Tool?
Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed
Tags
date differencedays between datesdate calculatorhow many daysage calculator
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