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Date Difference Calculator

100% Client-Side

Calculate the exact duration between two dates in years, months, days, total hours, minutes, seconds, and working business days.

Start Date

End Date

Total Days: 0

Working Days: 0

Total Weeks: 0

How to Use Date Difference Calculator

Pick Start Date

Select your starting calendar date or use Today button.

Pick End Date

Choose target deadline, milestone, or event date.

Inspect Duration

View comprehensive breakdowns including working days (excluding weekends).

✓ Working Days Calculation

Automatically skips Saturdays and Sundays to report true business days.

✓ Detailed Granularity

Outputs total days, total hours, minutes, and exact calendar years/months/days.

✓ Swap Dates Instantly

Reverse start and end date positions with one click.

🔒 Complete Client-Side Isolation

This tool runs entirely in your local browser runtime. No logs, analytics tracking, or remote server transmissions occur.

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