title: How to get the time since post published on praw
body: <p>I'm writing a bot using <code>praw</code> and I want to know how time has past since a post have been published. The naive solution is to use <code>datetime</code></p>
  
  <pre><code>import datetime
  import praw
  
  ... """read a list of submission"""
  
  date = datetime.datetime.fromtimestamp(submission.created)
  dif = datetime.datetime.now() - date
  </code></pre>
  
  <p>But I get negative time stamps. I guess I need to take into account reddit's time zone, how do I do that? </p>