FestDays
Global Holiday Data API made easy
FestDays launched on September 2, 2020 with 67 votes, #743 of 3,898 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.
In plain words
FestDays is an API that provides holiday data for 231 countries in 52 languages, covering national, regional, and local holidays. It serves businesses and developers who need accurate holiday information for scheduling, customer communications, and delivery planning. The platform helps companies set appropriate customer expectations, time promotional offers around holidays, and schedule meetings across different time zones while respecting local observances.
written from the facts on this page · October 2026
From the sources
FestDays is a global holiday data-as-a-service API made easy for businesses and developers, providing a unified, reliable, updated, and well-organized holiday data across 231 countries, including regional and local city coverage, in 52 languages.
Global Holiday Data API made simple
Our platform provides the most comprehensive holiday and working dataset for most countries around the globe. Set the right delivery expectations with your local, national and international customers. Boost your conversions by sending tailored offers around the holidays. Promote the best product in the right area at the perfect time. Schedule meetings with your clients, providers or coworkers globally respecting everyone's local holidays. Get to know better your customers' culture and enhance your communication with them by giving them that close and approachable touch. Simple to integrate in any software. Code examples in 16+ languages. No SDKfrom festdays.dev
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