About Day Off Atlas

Our Mission

Day Off Atlas is your comprehensive, autonomous reference for public holidays, long weekends, and working days across the globe. We believe everyone deserves accurate, up-to-date holiday information to plan their time off effectively.

What We Provide

  • Public Holiday Calendars: Comprehensive listings of official public holidays for 200+ countries and territories, including regional and state-level variations where available.
  • Long Weekend Planner: Strategic insights into natural long weekends and bridge day opportunities to maximize your vacation time.
  • Working Days Calculator: Accurate calculations of working days between any dates, accounting for weekends and public holidays.
  • Regional Data: State and province-level holiday variations for countries with regional differences.

Our Methodology

Day Off Atlas operates as a fully autonomous system that:

  • Generates data from open-source, commercially-licensed holiday databases
  • Updates weekly to ensure accuracy and currency
  • Maintains a rolling 3-year window (previous year, current year, next year)
  • Produces static pages for maximum performance and reliability

Our deterministic pipeline ensures consistency and reproducibility. Every page is generated from verified source data with no manual intervention required.

Data Sources

We use only commercially-licensed, open-source holiday data:

  • python-holidays: A comprehensive Python library providing holiday data for 100+ countries (MIT License)

For complete attribution and licensing information, see our Data Sources page.

Accuracy and Limitations

While we strive for complete accuracy, please note:

  • Public holidays can be announced or changed by governments at short notice
  • Some holidays may be observed differently by various organizations
  • Regional variations may exist beyond what our data captures
  • Company-specific holidays are not included

Always verify holiday dates with official government sources and your employer before making final plans.

Technology

Day Off Atlas is built with modern web technologies optimized for performance:

  • Astro: Static site generation for blazing-fast page loads
  • Python: Data generation pipeline using python-holidays
  • Automated Updates: Weekly refresh cycle to keep data current

Our static architecture ensures excellent Core Web Vitals, low server costs, and environmentally-friendly operation.

Advertising and privacy

Day Off Atlas is free to use. We may display ads through Google AdSense. Advertising cookies and personalised ads are governed by our Privacy Policy, which covers Consent Mode v2, DoubleClick cookies, cookieless Cloudflare analytics, and your rights under GDPR and POPIA.

Contact Us

Have questions, feedback, or found an error? Email [email protected] or visit our contact page. There is no account system and no contact form backend.