How Business Days Vary by State, Province, and Canton

A "business day" sounds like a fixed unit, the same everywhere inside one country. It is not. Below the national level, a state, province, or canton can add its own public holidays, and in most countries those regional days are real bank and office closures. When they are, they change the arithmetic: the same "ten business days" promise, counted under two different regional calendars, resolves to two different calendar dates. A deadline is only as precise as the calendar you count it against, and the calendar can change at a state line.

This site tracks 86 sub-national jurisdictions across the countries it covers, and 85 of them add at least one public holiday their national calendar does not have. That is the point of the regional pages: not to restate the national set, but to capture the days that make one region's working year shorter than its neighbour's. This guide walks through where a sub-national holiday actually moves a deadline, with worked contrasts drawn from the holiday data behind each region page, and it flags the one large exception where state lines do not move the count at all.

A sub-national holiday is a real closure, not a footnote

The site sorts regions into two kinds. In a count-affecting region, the regional public holidays feed the business-day math, because they are genuine closure days declared under that jurisdiction's own law. The United Kingdom's nations, the Australian states and territories, the Canadian provinces, the sixteen German Laender, the Spanish comunidades autónomas, and the Swiss cantons all work this way. Select the region and the calculator subtracts that region's holidays, not the generic national set.

The mechanism is a delta. Each region is stored as the national calendar plus the days it adds and minus the days it does not observe. Scotland adds 2 January; Bavaria adds Corpus Christi; Quebec drops Boxing Day. A day that one region treats as a normal working Tuesday, its neighbour closes for, and the count follows the region that governs the deadline. Because 85 of the 86 regions carry a non-empty add list, the regional calendar is almost never identical to the national one, and assuming it is quietly builds an error into every count that crosses a regional holiday.

Germany: the same deadline splits between Munich and Berlin

Germany has nine nationwide Feiertage, and every Land layers its own days on top. Bavaria is the most generous: on top of the national nine it observes Heilige Drei Könige (Epiphany, 6 January), Fronleichnam (Corpus Christi), and Allerheiligen (All Saints, 1 November), for twelve statewide public holidays. Berlin adds a single day, Internationaler Frauentag (International Women's Day, 8 March), for ten. So Bavaria closes for two more statewide public holidays each year than Berlin, and the two calendars diverge on three separate dates that Berlin works and Bavaria does not.

Watch what that does to a real count. In 2026, Fronleichnam falls on Thursday 4 June, a public holiday across Bavaria but an ordinary working day in Berlin. Count five business days forward from Wednesday 3 June. In Berlin the run is Thursday the 4th, Friday the 5th, then Monday the 8th, Tuesday the 9th, and Wednesday the 10th, so the deadline is Wednesday 10 June. In Bavaria the 4th drops out, so the fifth working day is Thursday 11 June. Same instruction, same starting date, one day apart, entirely because of one cantonal-level holiday. The Germany business day calculator uses the national set, while the Bavaria and Berlin pages apply each Land's own calendar.

The United Kingdom: Scotland keeps its own calendar

The United Kingdom does not have one bank-holiday list. Scotland's differs from England and Wales in three ways at once: it adds 2 January and St Andrew's Day (30 November), it takes its summer bank holiday on the first Monday of August rather than the last, and it does not observe Easter Monday. Those changes are spread across January, spring, and late autumn, so a business-day count that crosses any of them lands on a different date north of the border. A deadline counted through early January is the clearest case, because 2 January is a working day in England but a bank holiday in Scotland.

Northern Ireland works the opposite way. Rather than swapping days, it keeps the full England and Wales set and adds two more: St Patrick's Day (17 March) and the Battle of the Boyne, also called Orangemen's Day (12 July). So a Northern Irish working year is shorter than an English one by exactly those two days, both with the usual substitute-Monday rule when they land on a weekend. The United Kingdom calculator applies the England and Wales set; the Scotland and Northern Ireland pages apply each nation's own bank holidays.

Canada: Quebec stands apart

Canada's provinces diverge widely, and Quebec is the sharpest example. Its statutory calendar under the Act respecting labour standards adds two days the rest of the country does not observe: the Fête nationale du Québec, or Saint-Jean-Baptiste (24 June), and the Journée nationale des patriotes, which Quebec keeps on the Monday before 25 May in place of Victoria Day. It also does not observe several days that are holidays elsewhere in Canada, including the National Day for Truth and Reconciliation (30 September), Remembrance Day (11 November), and Boxing Day (26 December).

The consequence is concrete. 24 June is a statutory holiday across Quebec and an ordinary working day in Ontario, so a June deadline counted in Montreal can run a day behind the same deadline counted in Toronto. Late September and late December pull the other way, because Quebec keeps working on days that close offices in other provinces. This is exactly the situation where "governed by Canadian business days" is not specific enough to settle a date. The Canada calculator applies the federal set, while the Quebec page applies the provincial statutory calendar.

Spain and Switzerland: the comunidad and the canton

Spain fixes its regional holidays through an annual gazette resolution, and each comunidad autónoma chooses its own. Andalucía observes the Día de Andalucía on 28 February; Madrid observes the Fiesta de la Comunidad de Madrid, the Dos de Mayo, on 2 May. Neither day is a holiday in the other region, so a late-February deadline runs differently in Seville than in Madrid, and an early-May deadline flips the advantage. The Andalucía and Madrid pages each apply their own regional calendar on top of the Spanish national set.

Switzerland shows the widest spread of all, because cantonal holidays still track the historical religious split. Valais, a Catholic canton, adds five statutory days the national set does not carry: Saint-Joseph (19 March), Fête-Dieu (Corpus Christi), Assomption (Assumption, 15 August), Toussaint (All Saints, 1 November), and Immaculée Conception (8 December). It also drops four days the national set includes, among them Good Friday and Easter Monday. Zürich, a historically Protestant canton, adds just one, Labour Day (1 May), and keeps Good Friday. So Assumption closes offices in Valais while Zürich works, and Good Friday closes offices in Zürich while much of Valais does not. The Valais and Zürich pages sit either side of the Swiss national calendar.

The exception that proves the rule: US states

The United States is where the pattern stops, and getting this wrong ships a false claim. American states do designate their own holidays. Texas, for example, marks Confederate Heroes Day (19 January), Texas Independence Day (2 March), San Jacinto Day (21 April), and Lyndon B. Johnson Day (27 August). But these are state-government observances, and several are "partial staffing" days on which state offices stay open. Banks, the Federal Reserve, and most private employers follow the federal holiday calendar nationwide, so none of these state days changes a federal business-day count.

That is why this site treats US state holidays as informational only. The US business-day count follows the federal set and does not change from state to state; a deadline of "ten business days" resolves to the same date in Austin as in Boston. The state pages, such as Texas holidays for 2026, list these designated days for context, but they are layered on an unchanged federal count rather than subtracted from it. If a specific court, agency, or contract in one state observes a state holiday for its own deadlines, that is a rule of that forum, not a change to the federal business day, and it should be confirmed against the body that sets it. For the general count, use the United States calculator and read state days as office-closure context.

Getting it right in practice

The fix is the same everywhere the count can move. Identify the jurisdiction that governs the deadline, and if it names a state, province, or canton, count under that region's calendar rather than the national one. When the two sides sit in different regions, agree in writing whose calendar controls, because "business days" alone does not settle it once a regional holiday sits inside the window. Where the count genuinely matters, compute it under the controlling region and share the resulting date, not the formula, so both parties are looking at the same day rather than the same phrase.

For the specifics, the region pages carry each jurisdiction's full holiday set and the official source it was verified against. The countries hub links every national calculator and its regions, the sources register lists the government authority behind each calendar, and the companion guide on the working week around the world covers the other half of the problem, where the weekend itself sits on different days.

FAQ

Does the same business-day deadline really land on a different date in different states or provinces?

Yes, in count-affecting jurisdictions. Across the United Kingdom's nations, the Australian states and territories, the Canadian provinces, the sixteen German Laender, the Spanish comunidades, and the Swiss cantons, a regional public holiday is a genuine office and bank closure, so a business-day count must skip it. Two people counting the same deadline under two different regional calendars can reach two different dates. The United States is the exception: state holidays there do not change the federal count.

Do US state holidays change a business-day count?

No. On this site the United States business-day count follows the federal calendar and does not change from state to state. State-designated days such as Texas Independence Day or San Jacinto Day are state-office observances, and several keep offices open under partial-staffing rules; banks and the Federal Reserve follow the federal holidays nationwide. The US state pages list these days for context, but they are layered on an unchanged federal count rather than subtracted from it.

Which German states have the most public holidays?

Bavaria observes twelve statewide public holidays, the nine nationwide German Feiertage plus Heilige Drei Könige (Epiphany, 6 January), Fronleichnam (Corpus Christi), and Allerheiligen (All Saints, 1 November). Berlin observes ten, the nationwide nine plus Internationaler Frauentag (International Women's Day, 8 March). Because Bavaria removes more weekdays from the working year, a deadline counted in Munich can fall a day later than the same deadline counted in Berlin.

Why does Scotland count business days differently from England?

Scotland's bank-holiday set differs from England and Wales. Scotland adds 2 January and St Andrew's Day (30 November), takes its summer bank holiday on the first Monday of August rather than the last, and does not observe Easter Monday. Those differences fall in January, spring, and late autumn, so a business-day count that crosses any of them resolves to a different date in Scotland than in England. Northern Ireland instead keeps the full England and Wales set and adds St Patrick's Day and the Battle of the Boyne on top.

How do I know which region's calendar applies to my deadline?

Use the jurisdiction named in the contract, statute, or official notice. If it points to a specific state, province, or canton, count under that region's calendar rather than the national one, and confirm which calendar governs in writing when the two sides sit in different regions. The region calculators on this site apply each region's holiday set for you, so you can compute the deadline under the calendar that actually controls it.