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Date Difference Calculator
Calculate days, weeks, months, and years between two dates.
How to Use the Date Difference Calculator
- Select a start date and an end date.
- Click Calculate Difference to see days, weeks, months, and years between them.
- Dates are swapped automatically if end date is before start date.
Formula & Method
Calculates the difference in milliseconds between two dates, then converts to days, weeks, months, and years using standard conversion factors.
Examples
| Start Date | End Date | Result |
|---|---|---|
| 2024-01-01 | 2024-12-31 | 365 days |
| 2020-03-15 | 2025-03-15 | 5 years |
Frequently Asked Questions
Does it include the end date?
It calculates the difference between dates, not inclusive.
Can I calculate business days?
Not yet; this shows total calendar days.
Does it handle leap years?
Yes, leap years are automatically accounted for.
People Also Ask
How accurate is this calculator?
Our calculators use standard mathematical formulas and provide accurate results.
Can I use this on my phone?
Yes, all tools are fully responsive and work on any device.