Business Days Calculator
Count working days between two dates excluding weekends and custom holidays, or add and subtract business days.
About Business Days Calculator
Count working days between two dates excluding weekends and custom holidays, or add and subtract business days.
Business Days Calculator does calendar-aware date and time math for you, handling leap years and variable month lengths so the numbers you get are correct.
How to Use Business Days Calculator
- Enter the date, time or duration values requested.
- Choose any options such as format or inclusive counting.
- The result appears instantly.
- Copy the output if you need to keep it.
Key Features
- Calendar-accurate results, including leap years.
- Instant answers with a clear, readable format.
- No timezone setup required for everyday date math.
Frequently Asked Questions
Does Business Days Calculator account for leap years?
Yes. Date and time calculations account for leap years and the differing lengths of months, so durations and differences are accurate.
Is Business Days Calculator free to use?
Yes. Business Days Calculator is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. Business Days Calculator runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does Business Days Calculator work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.
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