title: Rails - Get the time difference in hours, minutes and seconds
body: <p>I'm looking for an idiomatic way to get the time passed since a given date in hours, minutes and seconds. </p>
  
  <p>If the given date is 2013-10-25 23:55:00 and the current date is 2013-10-27 20:55:09, the returning value should be 45:03:09. The <a href="https://github.com/tmlee/time_difference">time_difference</a> and <a href="https://github.com/abhidsm/time_diff">time_diff</a> gems won't work with this requirement.</p>