Home › Everyday Life › Netherlands Working Day

Netherlands Working Day

Checks a date against the Saturday-Sunday weekend baseline and exact 2026-2027 authority events.

When to use

You need a deterministic Netherlands Netherlands official public holidays for 2026-2027; employee day-off status remains CAO/contract dependent result.

Do not use when: A public holiday is not automatically a paid day off for every Dutch employee. CAO, employment contract, sector, employer, school, bank and municipal schedules are not inferred; Liberation Day arrangements may be five-year/CAO dependent.

Example user requests

Netherlands: King's Day.
Netherlands: Ordinary weekday.

Formula

is_working_day = not an official Saturday/Sunday weekend date and no exact authority event

Apply the pinned authority event table over the declared weekday baseline; do not infer uncovered employer or regional schedules.

Inputs

Parameter	Type	Unit	Required	Description
`date`	date		yes	Gregorian date in Netherlands coverage.

Outputs

Output	Type	Description
`territory`	string	NL (Netherlands).
`territory_name`	string	Netherlands
`weekday`	string	Gregorian weekday.
`is_working_day`	boolean	Monday-Friday with no event in this pinned authority scope.
`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	Netherlands official public holidays for 2026-2027; employee day-off status remains CAO/contract dependent
`holiday_policy`	string	Official public-holiday dates are included; no universal employer closure is inferred because Dutch law leaves the day-off entitlement to the CAO or employment contract.
`substitute_day_policy`	string	No substitute-day closure is inferred; sector, CAO, employer and alternative-religious-holiday arrangements require separate evidence.
`calendar_profile`	string	netherlands-public-holidays
`dataset_version`	string	nl-public-holidays-2026-2027.1
`sources`	list	Authority and legislation sources.

Example

King's Day: {"date":"2026-04-27"} → {"is_working_day":false,"day_type":"public_holiday"}

Ordinary weekday: {"date":"2026-04-28"} → {"is_working_day":true,"day_type":"regular_workday"}

GET https://tttkmbb.com/api/v1/calculate/netherlands-public-working-day?date=2026-04-27

Machine access

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

Sources

Government of the Netherlands – official public holidays 2026 and 2027 (government_calendar_reference)
Rijksoverheid – officiële feestdagen (government_guidance)
Business.gov.nl – public holidays and holiday entitlement (government_business_guidance)

FAQ

Does this prove an employee is legally off work?

No. It identifies an official public holiday. Check the applicable CAO or employment contract for the employee day-off rule.

Related calculators

Add Netherlands Working Days — Offset through the same authority package.