Should I use threeten instead of joda-time

Question

I came across https://blog.joda.org/2009/11/why-jsr-310-isn-joda-time_4941.html.

1) I am currently migrating Java Calendar to joda-time. I was wondering, should I us

Answer 1

Official reply:

As of January 2011, ThreeTen is still what I'd classify as an Alpha. That means that I am changing method names, classes appear and disappear etc. That said, the code that is there is basically sound and tells the right time.

As such, I currently advise projects to use Joda-Time until ThreeTen enters Beta, which will be this year (2011) at some point.

It is possible to have both Joda-Time and ThreeTen in the same application. When ThreeTen is stable I intend to add the interfaces from ThreeTen to Joda-Time providing interoperability. However, interoperability will never be easy as the classes have the same names.

Joda-Time will continue to be released for a good period after ThreeTen is complete. But there will be a push to move to ThreeTen if JSR-310 completes such that it is in Java SE 8.

Update, March 2014,

As of 2014-03-05, JSR-310 was approved for inclusion in Java JDK 8. For more information, see the ThreeTen home page.