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営業日計算

2つの日付間の営業日数を計算。

Features

  • Calculate exact working days between any two dates excluding weekends and custom holidays.
  • Add multiple holidays for different countries or company-specific non-working days.
  • Get instant results with a clean, intuitive interface that requires no registration.
  • Export calculation results as CSV or PDF for record-keeping and sharing with your team.
  • Use the calculator for project planning, deadline tracking, and payroll calculations.

How to Use

  1. Enter your start date and end date in the date fields or use the calendar picker.
  2. Select your country from the dropdown to automatically include national holidays.
  3. Add any additional custom holidays by clicking 'Add Holiday' and selecting specific dates.
  4. Click 'Calculate' to see the total business days and a detailed breakdown of the calculation.

Frequently Asked Questions

How do business days calculator work?

Our calculator counts all days between your selected dates, automatically excluding weekends (Saturdays and Sundays) and any holidays you've specified. The result gives you the exact number of working days for planning purposes.

Can I add custom holidays?

Yes, you can add custom holidays by clicking the 'Add Holiday' button and selecting specific dates. This is useful for company-specific holidays or different regions' holidays not covered in the default selection.

Does the calculator include leap years?

Yes, our business day calculator automatically accounts for leap years when calculating date differences, ensuring accurate results regardless of the year.

Can I calculate business days backwards?

Absolutely, you can calculate business days backwards by entering an end date that's earlier than your start date. The calculator will still properly exclude weekends and holidays.

Is this calculator free to use?

Yes, our business day calculator is completely free to use with no registration required or limitations on the number of calculations you can perform.