title: How can I calculate a time span in Java and format the output?
body: <p>I want to take two times (in seconds since epoch) and show the difference between the two in formats like:</p>
  
  <ul>
  <li>2 minutes </li>
  <li>1 hour, 15 minutes </li>
  <li>3 hours, 9 minutes </li>
  <li>1 minute ago </li>
  <li>1 hour, 2 minutes ago</li>
  </ul>
  
  <p>How can I accomplish this??</p>