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Add Switzerland Working Days

Adds or subtracts Switzerland authority-scope working days in exact coverage.

When to use

You need a deterministic Switzerland working-day offset.

Do not use when: Federal layer only. Cantonal public holidays, municipal holidays, employer, collective-agreement, school, bank and exchange schedules are not inferred; Swiss law permits cantons to recognize additional holidays.

Example user requests

Add or subtract Switzerland working days around Swiss National Day.
Add or subtract Switzerland working days around Cantonal holiday is not inferred.

Formula

move one day at a time; decrement only on status.is_working_day=true

Skip Saturday/Sunday and exact pinned authority events; do not add unverified substitute days.

Inputs

Parameter	Type	Unit	Required	Description
`start_date`	date		yes	Gregorian start date in 2026-2027.
`working_days`	integer		yes	Signed offset; start date excluded for non-zero offsets. Range: ≥ -1000, ≤ 1000

Outputs

Output	Type	Description
`start_date`	date	Input date.
`result_date`	date	Date reached.
`working_days_added`	integer	Signed requested offset.
`calendar_days_elapsed`	integer	Signed Gregorian difference.
`public_holidays_skipped`	list	Exact events crossed.
`territory`	string	CH (Switzerland).
`territory_name`	string	Switzerland
`day_type`	string	Deterministic classification: official_weekend, regular_workday, or the first published authority event kind.
`holiday_names`	string_list	Events applying on the date.
`holiday_kinds`	string_list	Authority event classifications.
`holiday_details`	list	Structured event details, including partial-day notes where published.
`calendar_scope`	string	Switzerland federal public holiday layer for 2026-2027
`holiday_policy`	string	Swiss National Day on 1 August is included as the only federal public holiday.
`substitute_day_policy`	string	No nationwide substitute-day closure is inferred when 1 August falls on a weekend.
`calendar_profile`	string	switzerland-public-holidays
`dataset_version`	string	ch-federal-public-holiday-2026-2027.1
`sources`	list	Authority and legislation sources.

Example

Zero offset is identity: {"start_date":"2026-01-01","working_days":0} → {"result_date":"2026-01-01","working_days_added":0}

GET https://tttkmbb.com/api/v1/calculate/switzerland-public-add-working-days?start_date=2026-01-01&working_days=0

Machine access

API: GET https://tttkmbb.com/api/v1/calculate/switzerland-public-add-working-days (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/switzerland-public-add-working-days · Markdown: https://tttkmbb.com/everyday/switzerland-public-add-working-days.md · JSON definition: https://tttkmbb.com/everyday/switzerland-public-add-working-days.json
MCP: server https://tttkmbb.com/mcp, tool run_calculator with calculator_id="switzerland-public-add-working-days"
OpenAPI operationId: add_ch_working_days
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

Sources

Swiss Confederation ch.ch – Public holidays (swiss_confederation_official_guidance)
SECO – Leisure time and public holidays (swiss_federal_labour_authority)
Swiss Confederation – National holiday (swiss_federal_authority)

FAQ

Does this package include Swiss cantonal holidays?

No. The Swiss Confederation identifies 1 August as the only federal public holiday; cantonal holidays vary and require a canton-specific package.

Related calculators

Switzerland Working Day — Inspect a date and source evidence.