📅 Date Difference Calculator
Count the exact days between any two dates — for project deadlines, visas, contracts, countdowns and planning. Includes weeks, months and business days.
How to use
- Pick the start date.
- Pick the end date.
- Click Calculate to see total days, weeks, months and business days between them.
Frequently asked questions
Does it count both the first and last day?
The result is the number of full days between the dates (end minus start), the standard used by contracts and HR. Add 1 if you need an inclusive count of calendar days touched.
What are business days?
Monday to Friday, excluding weekends. Public holidays vary by country, so they are not subtracted.
Can I count days until a future date?
Yes — set today as the start and your event as the end date to get an exact countdown in days.