title: Comparing today's date with another date in moment is returning the wrong date, why?
body: <p>I'm using <a href="http://momentjs.com/" rel="noreferrer">moment.js</a> 1.7.0 to try and compare today's date with another date but the <code>diff</code> function is saying they are 1 day apart for some reason.</p>
  
  <p><strong>code</strong>:</p>
  
  <pre><code>var releaseDate = moment("2012-09-25");
  var now = moment(); //Today is 2012-09-25, same as releaseDate  
  console.log("RELEASE: " + releaseDate.format("YYYY-MM-DD"));
  console.log("NOW: " + now.format("YYYY-MM-DD"));
  console.log("DIFF: " + now.diff(releaseDate, 'days'));
  </code></pre>
  
  <p><strong>console</strong>:</p>
  
  <pre><code>RELEASE: 2012-09-25
  NOW: 2012-09-25
  DIFF: 1 
  </code></pre>
  
  <p>Ideas?</p>