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Add Portugal Working Days

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

When to use

You need a deterministic Portugal working-day offset.

Do not use when: Mandatory nationwide list only. Municipal, autonomous-region, collective-agreement, employer and locally substituted holiday schedules are not inferred.

Example user requests

Add or subtract Portugal working days around Portugal Day.
Add or subtract Portugal working days around Ordinary weekday.

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	PT (Portugal).
`territory_name`	string	Portugal
`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	Portugal nationwide mandatory public holidays for 2026-2027
`holiday_policy`	string	Portugal Labour Code mandatory national holidays are included; Carnival Tuesday and municipal holidays are optional and are not inferred.
`substitute_day_policy`	string	No substitute-day closure is inferred. Good Friday may be observed on another locally significant Easter-period day under the Labour Code, but no local replacement is selected.
`calendar_profile`	string	portugal-public-holidays
`dataset_version`	string	pt-statutory-public-holidays-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/portugal-public-add-working-days?start_date=2026-01-01&working_days=0

Machine access

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

Sources

Diário da República – Código do Trabalho Article 234 (government_legal_text)
Diário da República – Law 8/2016 restoring national holidays (government_legal_text)
DGERT – Labour Code and regulations (government_labour_guidance)
Boletim do Trabalho e Emprego 10/2026 (government_labour_bulletin)

FAQ

Does this include Carnival Tuesday or Lisbon municipal day?

No. Portuguese law treats Carnival Tuesday and the municipal holiday as optional through collective regulation or contract; this package includes only the mandatory nationwide list.

Related calculators

Portugal Working Day — Inspect a date and source evidence.