Convert dates between 13 calendars and get Islamic, Jewish, Chinese and Persian holiday dates (Ramadan, Eid, Passover, Chinese New Year, Nowruz) for 1900-2100.

Access accurate public holiday data by country and year, including local names, holiday types, dates, regional coverage, and observance details.

Keep track of public and non-public holidays around the world. You can check what holidays are going to be celebrated in a vast list of supported countries.

Korean public holidays with substitute-holiday logic, plus accurate Revised Romanization of Korean text - in one fast, zero-dependency JSON API on a global edge. Check if any date is a public holiday, list a year's holidays, romanize Hangul, or get today's Korea date and holiday status. Lunar-solar conversion, the 24 solar terms and the sexagenary cycle coming in v1.1.

Accurate, lightweight and fast REST API for Jewish and Hebrew calendar holiday calculation, holiday lookup by key, upcoming holiday lookup, date range filtering, and keyword search across Gregorian

Unlock a world of celebration with the Holidays API! Dive into a treasure trove of festive data spanning 230+ countries. Delve into past revelries or plan ahead with future calendars. From public jubilations to religious observances and bank holidays, this API ensures your application is always in sync with global festivities.

Official South Korea public holidays 2024-2027. Includes substitute holidays. Source: Korean government data via data.go.kr

Look up public holidays for 55 countries, calculate business day deadlines, find the next business day, export holidays to iCal, and more — all backed by versioned JSON data with no external dependencies at runtime. Covers 55 countries across Africa, Americas, Asia, Europe and Oceania for years 2024 to 2027.

The API retrieves state-specific holidays by year, helping users to plan and schedule activities efficiently.

Ultimate Chinese Calendar API is a tool that provides information related to the Chinese lunar calendar, also known as the Chinese lunisolar calendar. This calendar is used in several countries, including China, Taiwan, and Vietnam, and is based on the movements of the moon.

Access a detailed worldwide holiday calendar to enhance your applications.

Validate transaction dates against Korea's public holidays, ensuring compliance and smooth fintech operations.

Streamline healthcare appointment scheduling by automatically considering Korea's public holidays for optimal patient management.

Get real-time updates on Korea's public holidays to plan your schedule effortlessly!

Stay organized with a comprehensive calendar of Korea's public holidays for personal or business use.

Quickly look up any public holiday in Korea and never miss an important date again!

Gain insights into Korea's public holidays and events for better planning and cultural understanding.

Explore diverse public festivities throughout Korea to enrich your experience and community engagements.

Discover all national holidays in Korea with ease, enhancing your planning and event organization.

Access vital public holiday data for payroll processing in Korea seamlessly.

Streamline your applications by retrieving accurate holiday calendar information effortlessly with our Retrieve Holiday Calendar Information API.

Effortlessly access a comprehensive database of global holiday events and dates with our Holiday Events Data Fetch API.

Quickly extract vital holiday schedule data for planning and analytics using our Holiday Schedule API.

Ensure timely project deliveries with the SLA Deadline Calculator, using global holidays for precise deadline calculations.

Calculate business days accurately while accessing global holiday data to optimize your workflows.