To use Joda-Time you need to download the latest version. The download will contain the joda-time-1.5.2.jar. Once you add this to your classpath you will be able to use Joda-Time.
The binary download also includes joda-time-1.5.2-sources.jar, which is a jar file of the source code suitable for linking to the jar file in IDEs such as Eclipse.
The release notes for upgraders can be found here:
If you want to build Joda-Time from source you will need
Apache Ant.
Simply call ant jar
to compile and create a jar file.
Compilation is also available using Apache Maven. Maven is intended to be used primarily as a website generation tool. Ant is our preferred build tool.