Top 20 NuGet date Packages

Library to generate Mock (Dummy) Data. - Country Specific Values: USA, Netherlands, Belgium. - New functionality: SimpleGenerator (Static methods for single fields)
A Machine.Fakes context configuration which mocks the Quarks.SystemTime class
A simple utility class which enables mocking of DateTime
Recurring dates based on programmatic recurrence rules. For instance: 'on Tuesdays and Fridays, except the 3rd week of the month, in June and August'
The implementation of this string formatting function is inspired by .NET's (and other Microsoft® products') Composite Formatting feature. Therefore the behaviour and method signatures match what's described in the "Getting started with the String.Format method" MSDN article as closely as possible. ...
A simple utility class which enables mocking of DateTimeOffset
Library created to help work with dates and periods.
.NET Standard library that provides a Date value type for times when you need to strictly represent a date without any time component.
A natural language date parser for .Net Core. A port of Ruby's chronic.
A library for doing stuff with dates and times in .Net.
Converts Nepali(BS) date to English(AD) date and vice versa with formatting. + Nepali Month, Day and Number tools (For UWP) How To Use? Read this documentation https://github.com/ersuman/NepaliDateTool.UWP/blob/master/README.md
Useful extensions to C# objects and classes.
A natural language date parser for .Net. A port of Ruby's chronic.
Redistributable components for package 'poco.foundation'. This package should only be installed as a dependency. (This is not the package you are looking for).
Provides additional collection classes and extensions.
Date Framework
Wondrous Noda Time extends the Noda Time date API with features specific to the Wondrous (Badí') calendar.
Date and Time helper classes
Badi Noda Time extends the Noda Time date API with features specific to the Badíʿ (Wondrous) calendar.
A set of userfull methods for persian codings: -convert persian numbers to english numbers -Convert to formatted persian datetime from gregorian string/datetime -convert to formatted gregorian datetime from persian string/datetime -Building standard datetime