Android: trying to make a count down from dec 21 using GregorianCalendar class
<p>I'm trying to make a simple app that will display a count down timer to December 21.</p>

<p>I have the following code</p>

<pre><code> GregorianCalendar gToday = new GregorianCalendar();
         GregorianCalendar gEndOfWorld = new GregorianCalendar();
         gEndOfWorld.set(2012,12,1);
</code></pre>

<p>My idea was to minus the 2 dates. but It seems like there is no method to subtract dates.  Is their a way to accomplish this?</p>
