Top 20 NuGet calendar Packages

Base class library for manipulating calendars of all types.
General logic for handling time slots in a calendar.
PersianCalendarPlus is a simple wrapper around System.Globalization.PersianCalendar providing extra functionality such as different kind of date string in Persian and the ability to convert between them.
Caesium is a tool for parsing ICS files
Library containing farsi controls, which has correct Right-To-Left drawing. Also contains classes to work with Jalali Dates.
Library containing farsi controls, which has correct Right-To-Left drawing that integrates into DevExpress suite of controls.
Library containing farsi controls, which has correct Right-To-Left drawing. Also contains classes to work with Jalali Dates.
Slovak calendar showing date with information about namedays, holidays, memorial days and much more offering possibility to format calendar output.
Generator for recurring tasks.
Calendar Converter , Persian Calendar with two algorithm and Hijri Calendar and Gregorian
Library containing farsi controls, which has correct Right-To-Left drawing that integrates into DevExpress suite of controls. This works with version 15.2 of DevExpress controls.
Provides month as an array
CalIconsTest
Implements calendar, button, checkbox, combobox and track bar for the ToolStrip control. Documentation available at: https://marcjohnston.github.io/byMarc.Net2.WinControls.ToolStrip.Controls/ Issues and bug tracker available at: https://github.com/marcjohnston/byMarc.Net2.....
JalaliDatePicker is a complete Jalali and Gregorian date picker, with many UI facilities for best user experience in date entry. It's designated for WPF.
Library for synchronizing with Lotus Notes calendar.
This package will help you to convert Gregorian Calendar to Hijri Shamsi Calendar or vice versa.
Bug Fixed on EOMDate Function for loan Nepali dates
This is a library for converting Gregorian date and Persian date (Jalali) and Hijri (Islamic) date into each other.
Xamarin.Android Binding of Calendar library https://github.com/SundeepK/CompactCalendarView by Giuseppe Novielli