Joda date and time

Joda-Time is a library designed as a complete alternative to the JDK date and time classes.

See:
Description

User Packages

org.joda.time	Provides support for dates, times, time zones, durations, intervals, and partials.
org.joda.time.chrono	Package containing the chronology classes which define the calendar systems.
org.joda.time.format	Provides printing and parsing support for instants and durations.

Implementation Packages

org.joda.time.base	Implementation package providing abstract and base time classes.
org.joda.time.convert	Implementation package providing conversion between date and time objects.
org.joda.time.field	Implementation package providing abstract and standard field classes.
org.joda.time.tz	Implementation package supporting the time zones.

Joda-Time is a library designed as a complete alternative to the JDK date and time classes. It includes date, duration, time period and interval classes and has a pluggable API for various calendar systems.

The library consists of quite a large number of classes, however most are internal to the implementation. All the key interfaces and classes are in the main package while the format package will be of interest for formatting.

Joda-Time is standalone and has no dependencies other than JDK 1.3. (The jar file may work on JDK 1.2, but it is untested.) It is licenced under the Apache Licnese Version 2.0.