A new Date and Time API for JDK 8 is being defined by JSR-310. This project is a backport of the API to JDK 7.

Please note that this is NOT an implementation of JSR-310. Only JDK 8 can contain an implementation of the JSR. This project simply mirrors the API in a different package. It is intended for use in applications that want an easy migration from JDK 7 to JDK 8.

Package	Description
org.threeten.bp	The main API for dates, times, instants, and durations.
org.threeten.bp.chrono	Support for calendar systems other than the default ISO.
org.threeten.bp.format	Provides classes to print and parse dates and times.
org.threeten.bp.jdk8	Simulates JDK 8 features on JDK 7.
org.threeten.bp.temporal	Access to date and time using fields and units.
org.threeten.bp.zone	Support for time-zones and their rules.