Joda-Time - Java date and time API

Related projects

A number of libraries and applications are now built using Joda-Time.

Extended Hibernate support A set of classes to link Joda-Time to databases using Hibernate.
Original Hibernate support The original set of classes to link Joda-Time to databases using Hibernate (UserType project is newer and better maintained).
JSP tag support A tag library in the style of JSTL to allow Joda-Time classes to be used in JSP.
I18N support A simple library that provides additional internationalization data for Joda-Time.
ObjectLab Holiday calculation Support for working and non-working days, plus how to calculate and resolve holidays, from a finance industry perspective.
Jollyday holiday calculation Provides classes to handle calculation of holidays.
Recurrance (RFC 2445) Support for the RFC2445 recurrence specification, as found in iCal.
DataNucleus support A library providing persistence via the DataNucleus platform.
JAXB Notes on Joda-Time and JAXB.
P2 update site Eclipse P2 update site.

If your open source library provides a value added feature on top of Joda-Time, then let us know!