Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Yes
- Category
- Calendar
- Documentation / URL
- https://isdayoff.ru
Overview
Non-Working Days (isdayoff.ru) tells if a date is a working day — keyless (verified live).
Quick Start
Month check (verified live):
curl "https://isdayoff.ru/api/getdata?year=2026&month=8&country=ru&cc=ru"1100000110000011000001100000110(1 = working, 0 = non-working, per the docs.)
Authentication
None — keyless.
Rate Limits & Notes
- Free; be polite — no hard published limit.
- Russia/CIS/USA and other calendars.
FAQ
Is Non-Working Days free? Yes — free and keyless (verified).
Does it need a key? No — keyless.
What does it return? Working-day flags.
More in Calendar
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