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

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.

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.

Keep track of concerts and gigs easily with our API for all schedules and updates. Never miss your favorite artists again!

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.

Access a comprehensive historical events API delivering accurate, structured data across centuries, enabling applications to provide engaging timelines, insights, and context.

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

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

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.

Get up-to-date information on upcoming MMA fights across major promotions like UFC, Bellator, and ONE Championship.

The Upcoming Music Events Tracker API simplifies event tracking for music enthusiasts. By passing a band's name, users effortlessly receive information about the band's upcoming shows. Stay in tune with your favorite artists and never miss a live performance with this user-friendly and efficient API.

Unlock the tapestry of time with the Events in History API—a portal to explore the profound and pivotal moments that shaped our world. From ancient marvels to contemporary milestones, this API unveils a kaleidoscope of renowned events, offering a captivating journey through the annals of human history.

Antenatal visit dates from the WHO 2016, NICE or ACOG published schedules, as calendar dates.

Due date from last menstrual period using Naegele's rule, with 21-45 day cycle length correction.

Trimester boundaries, 24w0d viability, and four preterm and four term classes with their dates.

Conception date from a last menstrual period or from a known due date, as ISO 8601 dates

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.

Easily retrieve rich information about crucial historical events using the Retrieve Historical Events Information API.

Retrieve and explore an extensive archive of historical events with the Historical Events Archive Retrieval API.

Access detailed data on significant historical events effortlessly with our Historical Events Data Fetcher API.

Get comprehensive data on historical events quickly and efficiently with the Get Get Historical Events Data API.