XCalendar

A plugin for .NET providing a Calendar API and DateTime extensions.

UI controls are available for Xamarin Forms and .NET MAUI.

Ability to use the Calendar from code without referencing a UI framework.
Ability to use and reference your own models by implementing interfaces like ICalendar, ICalendarDay, or IEvent.
Ability to set the number of rows/weeks shown or have it be automatic.
Ability to change the start of the week to any day of the week.
Ability to select single, multiple or a range of dates.
Ability to restrict navigation to a range of dates and define how the calendar loops.
Ability to specify your own custom order of days of week, with support for duplicates and non-chronological orders.
Fully customisable CalendarView with custom controls, templates, and exposed default styles and commands.
Support for localising text (such as days of the week and day numbers).
And more!