caldays
Public holidays for 195+ countries
Calendar · No auth · HTTPS
Calendar APIs
18 API records with directory-reported descriptions, access facts, and source links.
Calendarific
Worldwide Holidays
Calendar · API key · HTTPS
Checkiday - National Holiday
Industry-leading holiday data with over 5,000 holidays and thousands of descriptions
Calendar · API key · HTTPS
Church Calendar
Catholic liturgical calendar
Calendar · No auth · HTTPS not confirmed
Czech Namedays Calendar
Lookup for a name and returns nameday date
Calendar · No auth · HTTPS not confirmed
Festivo Public Holidays
Fastest and most advanced public holiday and observance service on the market
Calendar · API key · HTTPS
Google Calendar
Display, create and modify Google calendar events
Calendar · OAuth · HTTPS
Hebrew Calendar
Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc
Calendar · No auth · HTTPS not confirmed
Holidays
Historical data regarding holidays
Calendar · API key · HTTPS
LectServe
Protestant liturgical calendar
Calendar · No auth · HTTPS not confirmed
Nager.Date
Public holidays for more than 90 countries
Calendar · No auth · HTTPS
Namedays Calendar
Provides namedays for multiple countries
Calendar · No auth · HTTPS
Non-Working Days
Database of ICS files for non working days
Calendar · No auth · HTTPS
Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
Calendar · No auth · HTTPS
Public Holidays
Data on national, regional, and religious holidays via API
Calendar · API key · HTTPS
Russian Calendar
Check if a date is a Russian holiday or not
Calendar · No auth · HTTPS
The Calendar
Public holidays for US states and 30 countries plus sports and finance calendars as static JSON
Calendar · No auth · HTTPS
UK Bank Holidays
Bank holidays in England and Wales, Scotland and Northern Ireland
Calendar · No auth · HTTPS