Date Difference Calculator
Calculate the duration between two dates in days, weeks, months, years and business days.
How Many Days Are Between Two Dates?
Do you want to know exactly how much time has passed between two dates? Our date difference calculator provides a detailed breakdown by days, weeks, months and years. Instantly find out how many days have passed since a special event, or how much time remains until a target.
Countdown and Days Remaining
You can use this tool as a countdown for important days such as military service, a wedding, an exam or a birth. You can view the result not only as a total day count but also in a more meaningful format like '3 months 15 days'.
Legal Deadlines and Contract Tracking
In the business world, calculating notice periods, lease agreements or legal waiting periods is critical. You can quickly calculate when 15-day or 30-day legal deadlines expire, or the exact duration between two dates, using this tool.
Leap Years and Month Lengths
Calendar calculations are complex; some months have 30 days, some 31, and February has 29 days every four years. The chance of making a mistake in manual calculations is high. Our algorithm correctly handles all these calendar variables in seconds.
How to Use
Inputs
Select two dates: Start date and End date. The order does not matter; the calculator automatically treats the earlier date as the start and shows a direction warning.
Example Scenario
What is the difference between 1 January 2024 and 15 April 2026?
| Measure | Result |
|---|---|
| Start date | 1 January 2024 |
| End date | 15 April 2026 |
| Total days | 836 |
| Weeks / Remaining days | 119 weeks + 3 days |
| Years / Months / Days | 2 years, 3 months, 14 days |
| Business days | 597 |