Business Days Calculator (Custom Public Holidays)

Calculate working business days between two dates, excluding weekends and a custom user-provided list of public holidays.

How It Works & Processing Standards

Calculate working business days between two dates, excluding weekends and a custom user-provided list of public holidays.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

Business Days Calculator (Custom Public Holidays) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Business Days Calculator (Custom Public Holidays)

  1. 1
    Set Date RangeInput start date and end date.
  2. 2
    Enter HolidaysPaste custom holiday dates (YYYY-MM-DD), one per line.
  3. 3
    Read Net Working DaysInspect calculated business days excluding all holidays.

Common Use Cases

  • Company-specific project deadline estimation and regional public holiday SLA compliance
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