title: How to show last login time as "Logged <sometime> ago" in a toolbar?
body: <p>I want to show the time difference between last login time &amp; current login time. That means, the message should be in the form like "Logged 5 mins ago". This message will be showed in a toolbar which placed in a tableview. How can i do it?</p>
  
  <p>Another question is, even though i show the message, for each a minute, can i refresh the toolbar to get the updated time?</p>