Days Between Dates Calculator

Calculate exact days, weeks, months, and years between two dates

Accurate Date Difference Calculator
Select Dates
Start Date
End Date
Includes both start and end dates in calculation. Choose any dates from 1900 to 2100.
Date Difference Results
Detailed Breakdown
Alternative Formats
Date Information
Quick Presets
Exact Calculations
Accurate day counting including leap years and different month lengths
Multiple Formats
Days, weeks, months, years, working days, and business days
Real-time Updates
Instant calculations as you change dates

Frequently Asked Questions

How does the calculator count days?
The calculator includes both the start and end dates in the total count. For example, from Jan 1 to Jan 2 = 2 days.
Does it account for leap years?
Yes! The calculator automatically accounts for leap years (February 29) in all calculations.
What are working days?
Working days exclude Saturdays and Sundays. Business days exclude weekends and major US holidays.
Can I calculate future dates?
Absolutely! You can calculate differences between any dates - past, present, or future.
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Days Between Dates Calculator - Accurate Date Difference Tool

Our Days Between Dates Calculator helps you calculate the exact number of days, weeks, months, and years between any two dates. Perfect for counting days until events, calculating age, project planning, or tracking deadlines.

Features: Accurate day counting including leap years, working days calculation (excluding weekends), business days with holidays, detailed breakdown by years/months/days, and multiple alternative formats.

Use cases: Countdown to birthdays, weddings, or holidays; Calculate age between dates; Project timeline planning; Invoice due dates; Rental agreements; Academic calendars.

How it works: Simply select your start date and end date. The calculator instantly shows the difference in various formats including total days, weeks, months, years, and working days.