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Business Day Calculator

Business Days in May 2028 for Switzerland

May 2028 has 22 working days under the Swiss federal holiday calendar. May 2028 contains one Swiss federal holiday on a weekday. The month covers 31 calendar days, of which 8 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of working days in Switzerland.

working days

22

Calendar Days

31

Weekend Days

8

public holidays

1

Work Weeks

4.4

May 2028 business day calendar
MonTueWedThuFriSatSun
1
2
3
4
5
6
wknd
7
wknd
8
9
10
11
12
13
wknd
14
wknd
15
16
17
18
19
20
wknd
21
wknd
22
23
24
25
Auffahrt (Ascension Day)
26
27
wknd
28
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29
30
31

public holidays in May 2028

Thu, May 25Auffahrt (Ascension Day)

Switzerland May deadlines

Auffahrt (Ascension Day, Thursday) typically closes banks and the SIX 10 days after Easter; many Swiss corporates take the following Friday as a bridge day. Pfingstmontag (Whit Monday) closes banks. Monthly MWST and Pauschalsteuer continue. The Swiss National Bank Vice President typically delivers a mid-year economic outlook speech.

Day-of-Week Distribution

The count of each weekday in May 2028. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.

DayCount
Monday5
Tuesday5
Wednesday5
Thursday4
Friday4
Saturday4
Sunday4

Switzerland reporting cycles and business-day rules

Swiss business-day cycles align with ESTV (Federal Tax Administration) Mehrwertsteuer (MWST) quarterly returns due by the last day of the month after each quarter-end (Form 0552), and PostFinance / SIX SIS interbank settlement on bank business days. The Swiss National Bank (SNB) holds Monetary Policy Assessments quarterly in March, June, September, and December. SIX Swiss Exchange trades Mon-Fri excluding the federal Swiss National Day (1 August) and Christmas/Boxing Day. Cantonal tax filings vary by canton (typically March 31 for individuals). SwissBanking and FINMA regulate the financial-services sector with quarterly listed-entity disclosure cycles.

May 2028 working days compared by country

Working-day counts vary across countries because each country observes its own public holidays. The table below puts Switzerland alongside the other ten supported holiday calendars for May 2028.

CountryBusiness DaysHolidays this month
๐Ÿ‡บ๐Ÿ‡ธUnited States22Memorial Day
๐Ÿ‡ฌ๐Ÿ‡งUnited Kingdom21Early May Bank Holiday, Spring Bank Holiday
๐Ÿ‡จ๐Ÿ‡ฆCanada22Victoria Day
๐Ÿ‡ฆ๐Ÿ‡บAustralia23None
๐Ÿ‡ฎ๐Ÿ‡ณIndia21Buddha Purnima (approximate), Eid ul-Adha (approximate)
๐Ÿ‡ต๐Ÿ‡ญPhilippines21Labor Day, Eid'l Adha (approximate)
๐Ÿ‡ซ๐Ÿ‡ทFrance20Fรชte du Travail, Fรชte de la Victoire 1945, Ascension
๐Ÿ‡ฉ๐Ÿ‡ชGermany21Tag der Arbeit, Christi Himmelfahrt
๐Ÿ‡ฏ๐Ÿ‡ตJapan20Constitution Memorial Day, Greenery Day, Children's Day
๐Ÿ‡ฒ๐Ÿ‡ฝMexico22Dรญa del Trabajo
๐Ÿ‡ธ๐Ÿ‡ฌSingapore20Labour Day, Hari Raya Haji (approximate), Vesak Day (approximate)

How May 2028 compares year over year

May 2027 had 19 working days, so May 2028 has 3 more working days year over year. On the surrounding months, April 2028 has 18 working days and June 2028 has 21. Looking forward, May 2029 has 21 working days under the same Swiss federal holiday calendar.

Using this calculator in Switzerland

A Zurich treasury operator uses the 22-day May 2028 count to align SIX SIS (Swiss SIC system) RTGS settlement with ESTV (Federal Tax Administration) MWST quarterly cycles on the 31st of the month following each quarter-end. A Geneva private banking team uses business-day math to track SIX Swiss Exchange settlement and SNB Monetary Policy Assessment decision windows. A Basel pharma controller uses working-day counts to align cantonal tax filings, Swissmedic regulatory deadlines, and BAG (Federal Office of Public Health) reporting cycles.

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.

Frequently Asked Questions

How many business days are in May 2028 for Swiss federal?
May 2028 has 22 working days under the Swiss federal holiday calendar. The month spans 31 calendar days, of which 8 fall on a weekend and 1 is a Swiss federal holiday that lands on a weekday. The remaining 22 weekdays are countable as working days for invoicing, deadline tracking, and contract math.
Which Switzerland holidays affect May 2028?
May 2028 contains one Swiss federal holiday: Auffahrt (Ascension Day) on Thursday, May 25. Banks and Switzerland financial markets close on each of these days. Regional or industry-specific closures may add further non-working days for narrower contract definitions; layer them into the calculator's Advanced options if needed.
Why is the Swiss calendar federal only, not cantonal?
Switzerland has only three nationally-binding federal public holidays under federal law: New Year's Day (1 January), Swiss National Day (1 August), and Christmas Day (25 December). Each of the 26 cantons (and some major cities) adds its own additional public holidays under cantonal law. This calculator uses the federal three plus the widely-observed Catholic-tradition days (Good Friday, Easter Monday, Ascension, Whit Monday, Boxing Day) that SIX Swiss Exchange and Swiss banks treat as closure days nationwide. Cantonal additions (Berchtoldstag in Zurich/Bern, Allerheiligen in Catholic cantons, the Feast of Geneva in Geneva) are excluded; layer them under Advanced options for cantonal contracts.
How does Switzerland handle weekend-falling holidays?
Swiss federal law does not specify automatic substitute weekdays for weekend-falling public holidays. The Swiss tradition is that holidays absorb into the weekend without an in-lieu Monday. Some cantons (notably in Catholic regions for Allerheiligen) may grant a substitute weekday by cantonal decree but this is not federal. This calculator's data reflects the actual gazetted date; for cross-canton contracts, the federal-plus-widely-observed Catholic set is the conservative baseline. SIX Swiss Exchange and Swiss interbank settlement follow the same observance pattern.
Why does the business-day count vary year to year?
Two things shift the monthly count for Switzerland. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Swiss federal holidays anchored to a fixed date shift their weekday across years. Some years a fixed-date holiday lands on a weekend; some countries shift the observance to an adjacent weekday and some absorb it into the weekend. May 2027 had 19 working days, so May 2028 has 3 more working days year over year.

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