Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other.
About Non-Working Days
isDayOff() is an API providing production calendar data on working, holiday, and non-working days, sourced from official sources. It covers multiple countries, including Russia, Kazakhstan, Uzbekistan, and Belarus, with data organized by year and, for some countries, by five-day or six-day work week variants. Underlying calendar data is maintained in a public GitHub repository (isdayoff/calendars) as JSON files per country and year.
Client libraries for consuming the API exist in multiple languages, including Go and TypeScript, contributed by third parties. The service is aimed at developers who need to programmatically determine working versus non-working days for scheduling, business logic, or calendar-related applications in the countries it covers.
Key features
- Production calendar API for working, holiday, and non-working days
- Data sourced from official government sources
- Coverage for Russia, Kazakhstan, Belarus, and Uzbekistan calendars
- Supports both 5-day and 6-day work week schedules
- Community-maintained client libraries (Go, TypeScript)
Frequently asked questions
What data does isDayOff provide?
It provides an API with up-to-date information on working, holiday, and non-working days sourced from official calendars.
Which countries are supported?
The service covers Russia, Kazakhstan, Belarus, and Uzbekistan.
What programming languages have client libraries?
Community libraries exist for Go and TypeScript, among others referenced on the site.
Does it support different work week schedules?
Yes, it includes data for both 5-day and 6-day work week calendars.
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