Date Difference & Business Days Calculator
START & END CALENDAR DATES
Date Duration & Working Business Days Guide
Accurately calculating calendar durations and working business days is essential for project management planning, contract deadlines, sprint scheduling, and SLA tracking.
Calculation Method
- Calendar Duration: Exact difference between start and end timestamps.
- Business Days: Iterates day-by-day excluding Saturdays (6) and Sundays (0).
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Frequently Asked Questions
Common questions about this tool.
How does the Date Difference Calculator work? ▼
Select a Start Date and End Date. The calculator computes total calendar days, exact weeks, months, years, and working business days (excluding Saturdays and Sundays).
Are leap years accounted for in date calculations? ▼
Yes! Calendar calculations automatically account for 366-day leap years and varying month lengths.
What constitutes a "Business Day"? ▼
By default, business days count Monday through Friday, automatically filtering out weekends.
Is my date data kept private? ▼
100% private. All calculations run locally in your web browser.
Can I include or exclude the end date in the total count? ▼
The calculation includes the exact duration count between dates, with an option to count inclusive days.
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