📅 Date Difference Calculator
Calculate the exact date difference between two dates in years, months, and days.
About Date Difference Calculator
Find the exact duration between any two dates with our date difference calculator. Get results in years, months, and days, or total days, weeks, and months for precise date interval calculation.
Features
- Years, months, days precision
- Total days and weeks
- Leap year aware
Frequently Asked Questions
How to calculate days between dates?
Subtract the earlier date from the later date to get the difference in milliseconds, then convert to days. Our calculator handles leap years and month-end variations automatically.
What is the date difference including end date?
Inclusive date difference counts both the start and end dates. Exclusive counts only the days between. Our calculator provides both options for different use cases.
How many days in each month?
January 31, February 28-29 (leap year), March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31.