How to: Date and Time
* [Exceptionless.DateTimeExtensions](https://github.com/exceptionless/Exceptionless.DateTimeExtensions) - DateTimeRange, Business Day and various DateTime, DateTimeOffset, TimeSpan extension methods.
* [FluentDateTime](https://github.com/FluentDateTime/FluentDateTime) - Allows you to write cleaner DateTime expressions and operation. Partially inspired by Ruby DateTime Extensions.
* [nodatime](https://github.com/nodatime/nodatime) - Better date and time API for .NET [http://nodatime.org](http://nodatime.org).