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Add Poland Working Days

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

When to use

You need a deterministic Poland working-day offset.

Do not use when: Nationwide statutory holiday list only. Saturday substitute dates, individual work schedules, employer, sector, school, bank and local schedules are not inferred.

Example user requests

Add or subtract Poland working days around Christmas Eve.
Add or subtract Poland 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	PL (Poland).
`territory_name`	string	Poland
`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	Poland nationwide statutory public holidays for 2026-2027
`holiday_policy`	string	Poland's statutory named holidays and Sundays are included; regional, employer, school, bank and sector schedules are not inferred.
`substitute_day_policy`	string	When a statutory holiday falls on Saturday for a five-day-week employee, an additional day off may be due within the settlement period; the employer and work schedule determine the date, so no substitute date is inferred.
`calendar_profile`	string	poland-public-holidays
`dataset_version`	string	pl-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/poland-public-add-working-days?start_date=2026-01-01&working_days=0

Machine access

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

Sources

Polish ELI – consolidated Act on statutory days off (government_legal_text)
Polish ELI – amendment adding Christmas Eve (government_legal_text)
Polish Labour Inspectorate – Saturday holiday compensation (government_labour_guidance)
gov.pl – 2026 statutory day-off schedule (government_calendar_reference)
gov.pl – Christmas Eve statutory holiday (government_announcement)

FAQ

Is a Saturday substitute date returned?

No. Polish labour guidance makes the additional day off dependent on the employee's five-day schedule, employer and settlement period; this package preserves the statutory holiday and does not invent a substitute date.

Related calculators

Poland Working Day — Inspect a date and source evidence.