title: Django get months from models.DateTimeField
body: <p>Is it possible to filter a models.DateTimeField but only get the month in the filter object?</p>
  
  <p>The field is:</p>
  
  <pre><code>time_stamp = models.DateTimeField(
              default=timezone.now)
  </code></pre>
  
  <p>When I filter it, this is what I get:</p>
  
  <blockquote>
    <p>[datetime.datetime(2016, 9, 22, 15, 2, 48, 867473, tzinfo=),
    datetime.datetime(2016, 9, 22, 15, 4, 22, 618675, tzinfo=),
    datetime.datetime(2016, 9, 22, 15, 5, 20, 939593, tzinfo=)]</p>
  </blockquote>
  
  <p>The filter returns 3 rows, but clearly there is too much information. I only require the months, and maybe the year.</p>
  
  <p>How can I achieve this?</p>
  
  <p>Any help or direction would be appreciated,</p>
  
  <p>Thanks</p>