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Date Difference Calculator

Calculate the number of days, weeks, months, years, and business days between two dates.

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Date Difference & Working Days

Total Calendar Duration
364 Days
Equivalent to: 0 years, 11 months, 30 days (52 weeks)
Weekdays (Working Days)
260 Days

Excludes Saturday & Sunday

Weekend Days
104 Days

Saturdays and Sundays

What this tool does

Calculates the exact duration between any two calendar dates, with breakdowns for total calendar days, working weekdays, weekend days, and full months/years.

How to use this tool

  1. Choose the start date and end date.
  2. Toggle the checkbox to include or exclude the end date in the total count.
  3. View the total days, business days (Monday-Friday), and year/month breakdown.

Duration Formula

Total Days = (End Date in ms - Start Date in ms) / (1000 × 60 × 60 × 24)

Weekdays are computed by evaluating every day in the interval and filtering out Saturday and Sunday.

Practical Examples

Project Timeline

Days between March 1, 2025 and March 31, 2025.

Input: 2025-03-01 to 2025-03-31 (inclusive)
Output: 31 Total Days | 21 Weekdays | 10 Weekend Days

Frequently Asked Questions

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