Business Days Calculator
Calculate business days excluding weekends and Korean holidays.
총 1일 중 영업일 (주말·공휴일 제외)
상세 내역
2026년 한국 공휴일 안내
결과 공유
Overview
The Business Days Calculator computes the number of working days excluding weekends (Saturday and Sunday) and public holidays. It supports two modes: counting business days between two dates, and finding the date that is N business days from a given start date. All 2026 South Korean statutory holidays and substitute holidays are automatically reflected.
Formula
Business Days = Total Days − Weekend Days (Sat & Sun) − Public Holidays (excluding those falling on weekends). Example: From January 2 to January 31, 2026 (30 days total), subtract 8 weekend days and Lunar New Year holidays to get approximately 19 business days.
How to Use
- 1Select the calculation mode (business days between two dates / date after N business days).
- 2Enter the start date.
- 3Enter the end date or the number of business days.
- 4Click 'Calculate' to see the result.
Tips
- ✔Substitute holidays apply to Lunar New Year, Chuseok, Children's Day, Buddha's Birthday, Christmas, Liberation Day, National Foundation Day, and Hangeul Day.
- ✔Calculations are based on 2026 statutory holidays; ad-hoc temporary holidays require manual verification.
- ✔Useful for delivery estimates, loan interest calculations, contract deadlines, and administrative processing timelines.
- ✔You can choose whether to include Saturdays as business days, allowing customization by industry.
FAQ
Q. Are substitute holidays included?
Yes, all substitute holidays applicable under the 2026 rules are automatically reflected. If Lunar New Year or Chuseok overlaps with a weekend, a substitute holiday is designated, and Children's Day and other holidays are also eligible.
Q. Is Saturday considered a business day?
By default, Saturdays are excluded. However, some industries operate on Saturdays, so the calculator lets you toggle Saturday inclusion on or off.
Q. Are ad-hoc temporary holidays automatically reflected?
Statutory holidays are automatically included, but government-designated temporary holidays may not be reflected immediately depending on when they are announced. Please verify manually if a temporary holiday is declared.
Q. Where are business day calculations commonly used?
They are used in logistics delivery scheduling, bank transfer and loan interest calculations, contract deadline determination, administrative processing timelines, and payroll calculations.
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