Top 18 Calendar APIs For Developers - Public APIs
Calendar
Abstract Public Holidays
Data on national, regional, and religious holidays via API.
Calendarific
Worldwide Holidays.
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SerpApi's Search API makes it easy and fast to scrape Google and other search engines.
Church Calendar
Catholic liturgical calendar.
Czech Namedays Calendar
Lookup for a name and returns nameday date.
DigiDates
Various date and time calculations.
Festivo Public Holidays
Fastest and most advanced public holiday and observance service on the market.
Generate iCAL
Generates iCal calendar events that can be used across calendar applications.
Google Calendar
Display, create and modify Google calendar events.
Hebrew Calendar
Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc.
Holidays
Historical data regarding holidays.
LectServe
Protestant liturgical calendar.
Nager.Date
Public holidays for more than 90 countries.
Namedays Calendar
Provides namedays for multiple countries.
Non-Working Days
Database of ICS files for non working days.
Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other.
OpenHolidays API
Public and school holidays for many countries via an open REST API.
Russian Calendar
Check if a date is a Russian holiday or not.
UK Bank Holidays
Bank holidays in England and Wales, Scotland and Northern Ireland.