The date difference calculator computes the exact time span between two dates, displaying results in days, weeks, months, and years. This tool is invaluable for project planning, event countdown, relationship anniversaries, or historical research.
Whether you're tracking how long until a vacation, measuring project duration, or calculating time between historical events, this calculator provides accurate results. It automatically handles leap years and varying month lengths.
The calculator works bidirectionally—it doesn't matter which date you enter first, as it always shows the absolute difference. This makes it flexible for both past and future date calculations.
Quick Tips
- Bookmark your most-used calculators for quick access
- All calculations run locally in your browser
- Share results easily with the copy button
Frequently Asked Questions
No, the calculator shows the absolute difference regardless of which date is earlier.
Months are approximated at 30.44 days on average since month lengths vary.
Yes, the calculator works for any dates between 1900 and 2100.
The calculator focuses on calendar dates, not specific times or time zones.
Leap years are automatically accounted for in the calculation.