JavaScript library for working with recurrence rules for calendar dates as defined in the iCalendar RFC and more.

Lightweight and fast recurring dates library for PHP (RFC 5545)

A self-hosted calendar and scheduler server.

PHP Date Recursion library

A modern, open-source Full Calendar alternative for React. Month, week, day, and year views with drag-and-drop, horizontal and vertical resource views, and RFC 5545 recurring events — all MIT licensed.

A recurrence processor for Java

Recurring dates in Postgres.

[NO LONGER MAINTAINED] Recurrence rules generator form built with React

Rust crate for working with recurrence rules for calendar dates as defined in the iCalendar RFC and more.

ICS / iCal / iCalendar parser / expander

🔁 Recurrence rule parsing & calculation as defined in the iCalendar RFC

recurrence rules for calendar dates in Swift.

A javascript library, written in typescript, for working with recurring dates. This is a mirror of the canonical repo located on Gitlab.

Go library for working with recurrence rules for calendar dates.

NIF bindings to libical providing icalendar rrule expansion.

RFC5545 RRule library for JavaScript

RRule field for Advanced Custom Fields

RRule related utilities with timezone NLP support

JavaScript library for working with iCalendar RRULE rules

With PRTG Scheduler, you can configure customized maintenance windows for every PRTG object (Sensors, Devices, and Groups). It allows for various ways of occurrences, like every first Sunday in January, February and March, or only the first week of every month.

[Abandoned] [New maintainer wanted] A Laravel friendly package to manage date recurrence rules

Django app for scheduling tasks

Calendar MCP server with atomic booking, conflict prevention, deterministic RRULE expansion, and TOON token compression for AI agents

Rust RRule processing Library

Human Readable RRules

App for work with rfc2445 recurrence date in Django

Human readable extension for iCal.NET RecurrencePattern https://github.com/rianjs/ical.net

A lightweight library for generating `.ics` calendar file with timezone, recurrence (RRULE), and multi-event support.

Simple, de-coupled events plugin for WordPress and Timber

Recurring Rule Interface Extension for Directus