add_ng_working_days

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Use this when you need a deterministic Nigeria working-day offset. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when this is the nationwide federal public-holiday layer, not a universal private-employer, state, local-government, school, banking, market, diplomatic-mission or sector calendar. Ministry of Interior announcements take precedence over conflicting secondary or diplomatic snapshots for federal dates. Eid dates are lunar and can be amended by later official notice. The Public Holidays Act permits special or substituted dates and explicitly does not create an automatic extra day for a holiday falling on Saturday or Sunday; no replacement day is invented here. What it computes: Adds or subtracts Nigeria authority-scope working days in exact coverage. Example user requests: Add or subtract Nigeria working days around Federal Democracy Day. | Add or subtract Nigeria working days around Ordinary federal working day. Inputs: start_date (date); working_days (integer). Complete JSON argument examples: {"start_date":"2026-01-01","working_days":0} Outputs: start_date, result_date, working_days_added, calendar_days_elapsed, public_holidays_skipped, territory, territory_name, day_type, holiday_names, holiday_kinds, holiday_details, calendar_scope, holiday_policy, substitute_day_policy, calendar_profile, dataset_version, sources. Formula: move one day at a time; decrement only on status.is_working_day=true Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/nigeria-public-add-working-days with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/nigeria-public-add-working-days.md