Business Days Between Dates Calculator
Count working days, weekend days and national public holidays between two dates in 2026 and 2027 for 11 jurisdictions
Dates & Country
Counting starts the day after the start date and skips weekends and, if ticked, the national holidays above.
How Business Days Are Calculated
Calendar days run nonstop, but contract deadlines, legal time limits, project deliveries and payroll usually count working days only (Monday to Friday).
Holidays by country: the tool checks every day in your range against the national public holidays of the chosen country for 2026 and 2027. A holiday that falls on a Saturday or Sunday is never subtracted twice.
Calculated Duration
How to use this tool
- Select the country (11 jurisdictions are supported) and set the start and end dates.
- Tick or untick “Include end date in calculation” and “Exclude national public holidays” depending on how your deadline is counted.
- Read working days, total elapsed days, weekend days and the holidays that were removed, and copy the summary.
- Check the “last updated” badge: holiday data covers 2026 and 2027 only.
Worked example
For December 1–31, 2026 in the United States the tool finds 31 calendar days, 8 weekend days (four Saturdays and four Sundays) and 1 national holiday, Christmas on Friday, December 25. That leaves 31 − 8 − 1 = 22 working days. If a contract promises delivery “within 15 business days” starting December 1, you can count them on this basis instead of guessing around the holiday. Regional or company-specific days off are not included.
Methodology
Working day calculations follow ISO 8601 calendar conventions (Monday = Day 1 through Sunday = Day 7) paired with each country's statutory holiday rules: the US OPM federal holiday schedule (5 U.S.C. 6103), the UK Banking and Financial Dealings Act 1971 (England & Wales), the Canada Labour Code (federally regulated workplaces), the Australian Fair Work Act, New Zealand Holidays Act 2003, Germany's Unification Treaty (October 3) and the nationwide holidays common to all state Feiertagsgesetze, the French Code du travail (Art. L3133-1), the Spanish Estatuto de los Trabajadores (Art. 37), Brazilian Lei n.º 10.607/2002 e Lei n.º 14.759/2023, Portuguese Código do Trabalho (Art. 234.º), and Mexico's Ley Federal del Trabajo (Art. 74).
Fifteen business days that ended two days later than expected
Lukas runs a small workshop in Germany. A supplier confirms his order on Monday, April 27, 2026 and promises delivery “within 15 business days”. Because the day of confirmation usually does not count, he sets the start date to April 28 in the tool, selects Germany and ticks both options.
- He tries May 18 as the end date. The tool shows 21 calendar days, 6 weekend days, 2 holidays (May 1, Labor Day, and May 14, Ascension Day) and 13 business days. Not enough.
- On May 20 it shows 23 calendar days, 6 weekend days, 2 holidays and 15 business days. That is the deadline.
- With the holiday box unticked, the same 15 days would end on May 18, two days sooner.
Lukas pencils in Wednesday, May 20 for the delivery and plans his own production around it. The contract may still count differently, for example Saturdays as working days or a state holiday where the supplier sits, so he checks the wording before relying on the date. The tool covers nationwide statutory holidays only; this is not legal advice.
Frequently asked questions
What happens if a statutory national holiday falls on a weekend? ▼
The tool already knows which countries move a weekend holiday to a weekday (such as the US, UK, Canada, Australia and New Zealand) and uses that observed day. Where the holiday is not moved (as in Brazil or France), the day is counted once, as a weekend day, and no business day is subtracted twice.
Does this calculator account for regional, state, or municipal holidays? ▼
No. The tool only uses nationwide public holidays set by national law for 2026 and 2027. Local holidays, regional holidays in Spain or state holidays in Germany should be subtracted by hand if your contract requires it.
Should I tick “Include end date” for legal deadlines? ▼
This tool always counts the start date; “Include end date” adds the final day as well. Deadline rules differ by country, court and contract. Many rules exclude the day of the triggering event, so if yours does, enter the following day as the start date. Always confirm legal deadlines with the applicable rules or a lawyer.
Why is my result different from a payroll or bank calendar? ▼
This tool counts Monday to Friday minus nationwide public holidays. Banks and payroll systems may also skip regional holidays, company shutdown days or half-days such as December 24, and some contracts count Saturdays as working days. Holiday data only covers 2026 and 2027; outside those years the tool says so and removes weekends only.
How do I find the date that is 10 working days from today? ▼
Set the start date to today and type 10 in “Add working days to the start date”. The tool counts from the next day, skips Saturdays, Sundays and, if ticked, the national holidays of the chosen country, and shows the date reached. Many legal and contract deadlines count this way, but some count the start day or calendar days, so check the rule that applies to you.