check_us_federal_working_day

com.tttkmbb/calcgrid · Verify this server

Use this when you need US federal employee or federal-office holiday status for 2026-2027. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when you need a state/local/private-employer/exchange calendar or an alternate federal work schedule without explicit in-lieu resolution. What it computes: Checks a date against the OPM federal-employee holiday schedule and the US Saturday/Sunday baseline. Example user requests: Is 2027-07-05 a US federal working day? Inputs: date (date). Complete JSON argument examples: {"date":"2027-07-05"} Outputs: territory, territory_name, weekday, is_working_day, day_type, holiday_names, holiday_observed, holiday_actual_dates, weekend_days, rest_day_policy, calendar_scope, calendar_profile, source_quality, dataset_version, sources. Formula: is_working_day = US weekday baseline and no OPM federal holiday Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/us-federal-working-day with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/us-federal-working-day.md