check_pl_working_day

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Use this when you need a deterministic Poland Poland nationwide statutory public holidays for 2026-2027 result. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when nationwide statutory holiday list only. Saturday substitute dates, individual work schedules, employer, sector, school, bank and local schedules are not inferred. What it computes: Checks a date against the Saturday-Sunday weekend baseline and exact 2026-2027 authority events. Example user requests: Poland: Christmas Eve. | Poland: Ordinary weekday. Inputs: date (date). Complete JSON argument examples: {"date":"2026-12-24"} | {"date":"2026-10-27"} Outputs: territory, territory_name, weekday, is_working_day, day_type, holiday_names, holiday_kinds, holiday_details, calendar_scope, holiday_policy, substitute_day_policy, calendar_profile, dataset_version, sources. Formula: is_working_day = not an official Saturday/Sunday weekend date and no exact authority event Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/poland-public-working-day with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/poland-public-working-day.md