Namedays Calendar Alternatives (2025)

Public holidays for more than 90 countries

Public holiday API service for several supported countries.

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API for obtaining information about holidays.

Convert between Gregarian and Hebrew, fetch Shabbat and Holiday times, etc.

Protestant liturgical calendar

Calendarific is a simple way to get all holidays for any country in the world via a JSON API

Display, create and modify Google calendar events

Check if a date is a Russian holiday or not

Fastest and most advanced public holiday and observance service on the market

Industry-leading Holiday API. Over 5,000 holidays and thousands of descriptions. Trusted by the World’s leading companies

The Wunderlist API provides REST-based storage and synchronization of a user’s lists across multiple platforms and devices.