Date & Time
Business Days Calculator
Calculate business days between two dates directly in your browser. Count working days, weekends, calendar days, and optional excluded dates.
Tool
Calculate business days between two dates directly in your browser. Count working days, weekends, calendar days, and optional excluded dates.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free business days calculator to count working days between two dates. It can exclude weekends and optional custom dates such as holidays, vacations, or company closure days.
Conversion Formula
Examples
- Monday to Friday = 5 business days when both dates are included
- 2026-01-01 to 2026-01-31 = calendar days minus weekends and excluded dates
- Count working days left before a project deadline
Frequently Asked Questions
What is a business days calculator?
A business days calculator counts working days between two dates, usually excluding Saturdays and Sundays.
Can I exclude holidays?
Yes. The tool can support custom excluded dates, such as public holidays, vacation days, or company closure dates.
Does it know every country’s public holidays automatically?
No. To stay browser-only and transparent, holidays should be entered manually or selected from supported local presets if available.
Can it count weekend days too?
Yes. Weekend days can be shown as a separate result alongside business days and total calendar days.