title: Check time since added to a group in Facebook API
body: <p>first of all, I want to say: My english is not good enough to write in a fully comprehensive way but I'll try to explain my problem...</p>
  
  <p>Is it possible to get the date that the user has entered or added in a specific group ?
  Or there's another way to achieve that ?</p>
  
  <p>I've tried to use the Graph API url to find the user groups and parsing the data</p>
  
  <pre><code>https://graph.facebook.com/me/groups?access_token=CLIENT_TOKEN
  </code></pre>
  
  <p>There are another more effective way ? And how I can see the date from entry to the group ?
  Is it possible ?</p>
  
  <p>Thanks in advance</p>