aid: non-working-days-isdayoff
name: Non-Working Days
description: Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
url: https://isdayoff.ru
specificationVersion: '0.20'
created: '2026-05-28'
modified: '2026-05-28'
x-source: public-apis/public-apis
x-category: Calendar
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
tags:
- Calendar
- Public APIs
apis:
- name: Non-Working Days
  description: Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
  humanURL: https://isdayoff.ru
  baseURL: https://isdayoff.ru
  tags:
  - Calendar
  properties:
  - type: Documentation
    url: https://isdayoff.ru
common:
- type: DomainSecurity
  url: security/non-working-days-isdayoff-domain-security.yml
- type: Website
  url: https://isdayoff.ru
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com