title: Difference between timestamps in Arrow
body: <p>How would I get Arrow to return the difference in hours between two timestamps?</p>
  
  <p>Here's what I have:</p>
  
  <pre><code>difference = arrow.now() - arrow.get(p.create_time())
  print(difference.hour)
  </code></pre>
  
  <p><code>p.create_time()</code> being the timestamp of the create time of a currently running process.</p>
  
  <p>Returns:</p>
  
  <pre><code>AttributeError: 'datetime.timedelta' object has no attribute 'hour'
  </code></pre>
  
  <p>Edit: I don't want the total time in all three formats, I want it as a remainder eg. "3 days, 4 hours, 36 minutes" not "3 days, 72 hours, 4596 minutes"</p>