Quick Answer
Duration shows years, months, days, hours, minutes, and seconds between two points. Essential for time tracking and project management.
Quick Template
Use the full Date Difference Calculator
This variant is a fast preset. Open the full tool to fine-tune inputs, explore more options, and share the result.
Date Difference Calculator
Calculate the exact time between two dates
Select two dates to calculate the difference
About Duration Calculator Online
How to Calculate Date Difference
- Select or enter the start date
- Select or enter the end date
- View the difference in multiple units
- See years, months, weeks, and days breakdown
Results Include
- Total Days: Exact number of days between dates
- Years & Months: Expressed as X years, Y months, Z days
- Weeks & Days: Alternative format for shorter periods
- Working Days: Optional, excludes weekends
Common Uses
- Project Planning: Calculate project duration
- Age Calculation: Time between birth and a date
- Contract Duration: Time remaining or elapsed
- Event Countdown: Days until a special date
Related Tools
Age Calculator
Calculate your exact age in years, months, weeks, days, hours, and minutes. Find time until your next birthday.
Countdown Generator
Create a live countdown to any event. Generate shareable links for birthdays, launches, and more.
Add/Subtract Date Calculator
Add or subtract days, weeks, months, and years from any date. Quick presets for common calculations.