title: Rails Date Format (To match YYYY-MM-DD HH-MM-SS)
body: <p>When I do this:</p>
  
  <pre><code>DateTime.now.to_s
  </code></pre>
  
  <p>I get: 
      2015-07-31T22:22:05+02:00</p>
  
  <p>But I need it in this format:</p>
  
  <pre><code>2015-07-31 22:22:05
  </code></pre>
  
  <p>How can I format it this way?</p>