Business Days Calculator
Count the working days between two dates, automatically excluding weekends and holidays. Choose which weekdays count as days off.
Last updated:
Input
YYYY/MM/DD
YYYY/MM/DD
Days off (excluded from business days)
Result
Enter a start date and an end date.
How it works
- Enter a start date and an end date to count the business days (days excluding non-working days) within that period.
- Choose which weekdays count as days off (Saturday and Sunday by default), and decide whether to exclude public holidays as well.
- Public holidays are based on the Japanese holiday calendar, covering fixed holidays, Happy Mondays, the vernal and autumnal equinoxes, plus substitute and national holidays.
- The result highlights the business-day count as the main figure, with a breakdown of total days, days off, and weekend days.
- Company-specific closures (year-end, summer breaks, and the like) are not included, so adjust the result manually if needed.
- Use it to estimate deadlines, working days, or attendance totals. Future holidays may change due to legal revisions.
Frequently asked questions
- How does the tool count business days?
- It takes the span between your start and end dates and subtracts non-working days. You choose which weekdays are closed (Saturday and Sunday by default) and whether to also exclude Japanese public holidays.
- Which holidays are excluded?
- Fixed holidays, Happy Monday holidays, and the equinox days, plus substitute holidays and citizens' holidays. Company-specific closures such as year-end or summer breaks are not included, so adjust the result yourself if needed.
- What else does it show besides the business-day count?
- Alongside the headline business-day figure, it breaks down the total days in the period, the number of closed days, and the number of weekend days, which is handy for deadline and staffing estimates.
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