It doesn't specify either of those in the documentation, which is the only authority you should be relying on. However it shouldn't be too onerous for you to write a method which finds the absolute value of the difference between the internal long values.
Joined: Oct 01, 2010
good point. the long values are the seconds since "epoch" right? What is the easiest way to get the long values? I don't see a method on the Date Class to retrieve it.