jon skeet 

Noda Time is a date and time API acting as an alternative to the built-in DateTime/DateTimeOffset etc types built into the .NET framework.

Provides serialization support between Noda Time and Json.NET.

Provides extra types which may be useful when testing code which uses Noda Time, such as a fake programmable implementation of IClock and a time zone which has a fixed transition. These types are also used to test Noda Time itself.

Package Description

Helpful static methods (or extension methods) for enums and delegates, with constraints which can't be expressed in regular C#.

Simple micro-benchmarking framework

Utilities that are useful when demonstrating code. (e.g. for books, articles, conferences)

A Benchmarking Tool

Provides serialization support between Noda Time and Google.Protobuf