Date Difference Calculator

Calculate the duration between two dates. Perfect for planning events, tracking project timelines, or calculating your exact age.

How to use the Date Difference Calculator

  1. Enter the Start Date. This is the beginning of the period you want to measure.
  2. Enter the End Date. This is the end of the period.
  3. Click Calculate Duration.
  4. The tool will show you the exact duration in years, months, and days, as well as total days, weeks, and hours.

Frequently Asked Questions

How does this calculator handle leap years?

Yes, this calculator uses the Moment.js library which correctly accounts for leap years when calculating differences.

Does the end date count?

The calculation considers the time from the start of the first day to the start of the last day. It calculates the duration between the two points in time.