FREE — is this date a business day in this country?

Unmetered and unpriced; every country on every brand. Applies the country's national public-holiday calendar and its statutory weekend rule. Returns the verdict, the reason (business_day, weekend, public_holiday, weekend_and_public_holiday, makeup_workday), the holiday names, the next and previous business day, the weekend rule with its basis, and the cited calendar. Refusals are free JSON: 400 for a malformed country, date or n; 404 for an unknown country; 422 year_not_held when a date falls...