title: How do you find what week in a month a day is on?
body: <p>I can't seem to wrap my head around what might be an easy question..</p>
  
  <p>Suppose I have the date..</p>
  
  <pre><code>Fri, 14 Sep 2012 18:37:50 +0200
  </code></pre>
  
  <p>How do I find out what week this date is on for this month? Is it the 1st, the 2nd..? The third?</p>
  
  <p>Thanks!</p>