2025
All dates verified against official sources.
| Date | Name | Effect | Notes | Sources |
|---|---|---|---|---|
| Wed 1 Jan 2025 | New Year's Day | Closed | [2][7] | |
| Thu 2 Jan 2025 | Berchtoldstag | Closed | [2][5][7][8] | |
| Fri 18 Apr 2025 | Good Friday | Closed | [2][7] | |
| Mon 21 Apr 2025 | Easter Monday | Closed | [2][7] | |
| Thu 1 May 2025 | Labor Day | Closed | [2][7] | |
| Thu 29 May 2025 | Ascension Day | Closed | [2][7] | |
| Mon 9 Jun 2025 | Pentecost Monday | Closed | [2][7] | |
| Fri 1 Aug 2025 | National Day | Closed | [2][7] | |
| Thu 25 Dec 2025 | Christmas Day | Closed | [2][7] | |
| Fri 26 Dec 2025 | Saint Stephen's Day | Closed | [2][7] |
Everything about SIC: time zone, weekend, verified years and the live year picker
SIC holidays 2025: questions
How many weekdays is SIC closed in 2025?
10: New Year's Day (Wed 1 Jan 2025); Berchtoldstag (Thu 2 Jan 2025); Good Friday (Fri 18 Apr 2025); Easter Monday (Mon 21 Apr 2025); Labor Day (Thu 1 May 2025); Ascension Day (Thu 29 May 2025); Pentecost Monday (Mon 9 Jun 2025); National Day (Fri 1 Aug 2025); Christmas Day (Thu 25 Dec 2025); Saint Stephen's Day (Fri 26 Dec 2025).
Official sources
[1]SIX Swiss Exchange
six-calendar-api-2024· covers 2024Checking the archive…
[2]SIX Swiss Exchange
six-calendar-api-2025· covers 2025Checking the archive…
[3]SIX Swiss Exchange
six-calendar-api-2026· covers 2026Checking the archive…
[4]SIX Swiss Exchange
six-calendar-api-2027· covers 2027Checking the archive…
[5]SIX Interbank Clearing
six-sic-clearing-days-2027· covers 2026, 2027Checking the archive…
[6]SIX Interbank Clearing (Wayback Machine copy)
six-sic-value-dates-2024· covers 2024Checking the archive…
[7]SIX Interbank Clearing (Wayback Machine copy, French version)
six-sic-value-dates-2025· covers 2025Checking the archive…
[8]SIX Interbank Clearing (Wayback Machine copy)
six-sic-value-dates-2026· covers 2026Checking the archive…
The same dates from the API
With your API key, the same dates as above, as JSON:
curl -H "Authorization: Bearer $FC_API_KEY" "https://api.financecalendarapi.com/v1/holidays?calendars=CHF&from=2025-01-01&to=2025-12-31"
Subscribe in your calendar app
Every year of SIC as an .ics feed, updated with each release.
https://api.financecalendarapi.com/v1/calendars/CHF.ics?key=YOUR_KEY
Add your key to the feed address. Use a separate key for feeds; it ends up in your calendar app's settings.