check_ar_working_day

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Use this when you need a deterministic Argentina Argentina nationwide national holidays and published tourism non-working days for 2026 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 provincial, municipal, employer, bank, exchange, school, sector and religion-specific schedules are not generalized; regional one-off holidays are not included in this nationwide default. What it computes: Checks a date against the Saturday-Sunday weekend baseline and exact 2026-2026 authority events. Example user requests: Argentina: Argentina national holiday. Inputs: date (date). Complete JSON argument examples: {"date":"2026-05-25"} 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/argentina-working-day with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/argentina-working-day.md