holiday-calculation

Open World Holidays Framework

Easily access public holidays for 200+ countries via .NET, REST API, Docker, or NuGet for online and offline use.

Jollyday - A holiday API

A Moment.js plugin for handling holidays. NO LONGER MAINTAINED (DEPRECATED)

Smart-Period aims to simplify Time-range manipulation

[ING]Swift版の日本の祝祭日判定コードとカレンダーサンプル（iOS Sample Study: Swift）

Holidata is the core of holidata.net, a no-nonsense, ad-free provider of international holiday data.

Производственные календари РФ (2023—2025) в формате JSON. Простой API для получения данных.

Enrico Service provides holiday dates for several countries.

MomentJS Plugin: Check if a date is a german holiday (Feiertag)

Financial datetimes and holiday recurrence rules

A Java library for calculating dates of public holidays

Deutsche Feiertage - Adapter für ioBroker

Breinify's JavaScript API Library

日本の祝日 祝祭日 を計算するPythonライブラリ

Global holidays API for public holidays, bank holidays and observances from 230+ countries

The best calendar table you'll ever find! Generate a calendar table with many columns of date dimensions and metadata. Output to dataframe or CSV to ingest into a database or for use in an application like Excel or PowerBI.

A Moment.js plugin for handling holidays at scale.

A PHP library for persian (jalali) calendar events.

An API for fetching Persian (Shamsi), Gregorian, and Hijri holidays. The project scrapes holiday data from the time.ir website, processes the data, and outputs it as JSON files. This API allows developers to retrieve holiday data for any given year and month, with the dates converted into both Persian and English digits.