title: Convert duration format from float to Month:Days:Hours:Minutes:Seconds in python 3.x
body: <p>I have a float 12634.0 as a duration result.
  I want to convert it to this format: 
  Months:Days:Hours:Minutes:Seconds (00:00:03:30:34)</p>
  
  <p>How can I achieve that? Thanks</p>