title: Python: print the time zone from strftime
body: <p>I want to print the time zone. I used <code>%Z</code> but it doesn't print:</p>
  
  <pre><code>import datetime
  now = datetime.datetime.now()
  print now.strftime("%d-%m-%Y")
  print now.strftime("%d-%b-%Y")
  print now.strftime("%a,%d-%b-%Y %I:%M:%S %Z") # %Z doesn't work
  </code></pre>
  
  <p>Do I perhaps need to import <code>pytz</code>?</p>