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Business Day Calculator

Basel-Stadt Business Day Calculator

Last reviewed: May 19, 2026 · Holiday data: June 24, 2026

Calculate business days in Basel-Stadt with its own cantonal public holidays. Basel-Stadt shares the Monday to Friday working week and the Saturday and Sunday weekend with the rest of Switzerland, but its holiday calendar is different, so due dates and deadlines can land differently from the national count.

How Basel-Stadt differs from the national Swiss holidays

Basel-Stadt keeps the national Swiss public holidays and adds one statutory cantonal day: Tag der Arbeit (Labour Day) on 1 May, treated as equal to a Sunday across the canton. The Basler Fasnacht, the three days of carnival that begin with the Morgestraich, closes shops and offices but is not a legal public holiday, so it stays out of the count, the same treatment given to Zürich's Sechseläuten. No Catholic days are observed canton-wide, and Stephanstag is kept. The working week is Monday to Friday with a Saturday and Sunday weekend.

Worked example

Adding 1 business days to Thursday, April 30, 2026 using Basel-Stadt's holidays lands on Monday, May 4, 2026. With the national Swiss holidays, the same calculation lands on Friday, May 1, 2026: the gap comes from Basel-Stadt's own calendar.

Basel-Stadt public holidays in 2026

DateDayPublic holiday
January 1ThursdayNeujahrstag (New Year's Day)
April 3FridayKarfreitag (Good Friday)
April 6MondayOstermontag (Easter Monday)
May 1FridayTag der Arbeit (Labour Day)
May 14ThursdayAuffahrt (Ascension Day)
May 25MondayPfingstmontag (Whit Monday)
August 1Saturday (weekend)Bundesfeiertag (Swiss National Day)
December 25FridayWeihnachten (Christmas Day)
December 26Saturday (weekend)Stephanstag (Boxing Day)

How to count Basel-Stadt business days

For an interactive calculation, use the Switzerland calculator and add Basel-Stadt's own dates under Advanced options. The per-year holiday pages below list every Basel-Stadt date ready to paste in.

Basel-Stadt public holiday data is verified against the Kanton Basel-Stadt portal (bs.ch) and the consolidated Art. 20a ArG holiday matrix.

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For informational purposes only

This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.

Basel-Stadt FAQ

Does the Basel-Stadt calculator use different holidays from the national Swiss set?
Basel-Stadt keeps the national Swiss public holidays and adds one statutory cantonal day: Tag der Arbeit (Labour Day) on 1 May, treated as equal to a Sunday across the canton. The Basler Fasnacht, the three days of carnival that begin with the Morgestraich, closes shops and offices but is not a legal public holiday, so it stays out of the count, the same treatment given to Zürich's Sechseläuten. No Catholic days are observed canton-wide, and Stephanstag is kept. The working week is Monday to Friday with a Saturday and Sunday weekend.
Is the Basel-Stadt working week Monday to Friday?
Yes. Basel-Stadt uses the Monday to Friday working week with a Saturday and Sunday weekend, the same as the rest of Switzerland. Only the cantonal holiday set changes.