RecyclerView? ListView or ViewGroup? No, it's Canvas! Ultra performance and free customization interface! Vertical and horizontal, Fast rendering and extremely low memory. Android上一个优雅、万能自定义UI、仿iOS、自定义动画，支持垂直、水平方向切换、支持周视图、自定义周起始、性能高效的日历控件，热插拔实现UI定制！Canvas绘制，渲染速度快、占用内存低，你真的想不到日历居然还可以如此优雅。

DayPicker is a customizable date picker component for React. Add date pickers, calendars, and date inputs to your web applications.

Duet Date Picker is an open source version of Duet Design System’s accessible date picker. Try live example at https://duetds.github.io/date-picker/

Calendar widget for flutter that is swipeable horizontally. This widget can help you build your own calendar widget highly customizable.

An open source calendar framework for iOS, with support for customization, IBDesignable, Autolayout, and more.

A lightweight datepicker with neat animations and a unique UX.

Highly configurable date picker built for Angular applications

A simple, clean calendar and clock app for macOS.

📅 A customizable calendar JavaScript UI widget/component library with the ability to show events.

Customizable iOS Calendar widget for https://scriptable.app/

Android calendar library provides easy to use widget with events

Minimal calendar widget

A no dependencies, lightweight and feature-rich ⚡ calendar component for react.

Flutter calendar week UI package

An Event View based on Apple's Event Detail View. Written in Swift 3. Supports ARC, Autolayout and editing via StoryBoard.

Virtual Phone Desktop Application using Python3 and PyQt5

Reads ICS Calendar File(s) and shows Events in a monthly Calendar Widget

CalendarSlider widget with a lot of customization

ng-git-calendar is an angular interface component that implements a committing calendar similar to that of github, which can be used for various uses, such as fault logging and other records like any other calendar.