Date Difference Calculator : Duration Between Two Dates
Find the precise duration between any two dates on the Gregorian calendar. Get results in days, weeks, months, years, and working business days with optional end-date inclusion.
Interactive Calculator
100% Client-Side EngineStep-by-Step Examples
Project Timeline Duration
Calculating duration between January 1, 2024 and January 31, 2024.
Accounts for working Mondays through Fridays and Saturday/Sunday weekends.
How to Use This Tool
- Enter the start date.
- Enter the end date.
- Optionally toggle inclusion of the end day.
- Click Calculate to see total elapsed time and business day counts.
Frequently Asked Questions
Related Calculators & Tools
Explore complementary calculators in this category.
Days Between Dates Calculator
Calculate the total number of calendar days between two dates with optional inclusive counting and weekend breakdowns.
Weeks Between Dates Calculator
Calculate the total number of full weeks, remaining days, and decimal weeks between any two calendar dates.
Months Between Dates Calculator
Calculate the exact number of full calendar months, extra days, and decimal months between two dates.
Business Days Calculator
Calculate the exact number of business working days between two dates with customizable weekends and holiday deductions.