Estimate project delivery periods, notice periods and processing times.
Estimate project delivery periods, notice periods and processing times.
Time & Date Tools
Business Days Calculator
Count business days, weekend days and total calendar days between two dates, with optional custom holidays.
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What this tool does
Use weekday rules and a custom holiday list to estimate working time without assuming a country-specific calendar.
Count business days, weekend days and total calendar days between two dates, with optional custom holidays.
How to use it
- 1Choose the start and end dates.
- 2Choose inclusive or exclusive endpoints and add holidays in YYYY-MM-DD format.
- 3Calculate and review business days, weekends and excluded holidays.
Practical uses
Count office days across a date range for planning and scheduling.
Count office days across a date range for planning and scheduling.
Compatibility, privacy and limits
Time & Date ToolsBrowser local
Saturday and Sunday are treated as weekends by default.
Public holidays vary by country and region, so add the applicable dates manually.
Inputs and settings are processed in the current browser by default, with no account required.
Frequently asked questions
Does Business Days Calculator require an account?
No. It works directly in the browser.
Does Business Days Calculator upload my input?
No. Inputs remain in the current browser by default.
Can I rely on the result for professional decisions?
Treat the result as a practical aid and verify legal, financial or compliance requirements separately.