Sync your Outlook and Google calendars

Worldwide holidays (REST API), NuGet or docker container 🌎

Sync Outlook with Google, SOGo, Nextcloud or any other CalDAV/CardDAV server

A plugin for .NET providing an API for representing a calendar along with fully customisable calendar controls for Xamarin Forms and .NET MAUI

Calendar plugin for Xamarin.Forms

日历、公历(阳历)、农历(阴历、老黄历)、佛历、道历，支持节假日、星座、儒略日、干支、生肖、节气、节日、彭祖百忌、每日宜忌、吉神宜趋凶煞宜忌、吉神(喜神/福神/财神/阳贵神/阴贵神)方位、胎神方位、冲煞、纳音、星宿、八字、五行、十神、建除十二值星、青龙名堂等十二神、黄道黑道日及吉凶等。lunar is a calendar library for Solar and Chinese Lunar.

Self-hosted family wiki engine / photoalbum

This utility synchronizes Calendar entries between different calendar providers (Apps like Outlook,Services EWS/Google/Live).

Reminds you of events with an un-missasble pop-up on your screen(provided you are at your computer, of course)

Plugin.Maui.CalendarStore provides the ability to access the device calendar information in your .NET MAUI application.

Toast UI Calendar Wrapper For Blazor

Sync student and teacher timetables to their calendars on Google Workspace or Microsoft 365

DevAdventCalendar web app

🔖 Chinese calendar control in C#

A Rainmeter skin for displaying your GitHub contribution calendar on your desktop

A small Windows desktop application which displays a timeline indicating periods when financial exchanges are open.

Xamarin Binding Library - FSCalendar for iOS https://github.com/WenchaoD/FSCalendar

An extension library to simplify dealing with .NET's DateTime, DateOnly, TimeOnly and TimeSpan objects, also includes support for the ISO 8601 EDTF profile.

A Xamarin.Forms Calendar Plugin