title: Add 2 times together JavaScript
body: <p>Looking to add time together within javascript. </p>
  
  <p>I have never written any javascript, and as such am struggling with the way to progress. </p>
  
  <p>I have got to add say <code>4:00</code> (4 hours) to <code>12:44</code> (Current Time) Is this possible within javascript?</p>
  
  <p>The answer should report back <code>16:44</code></p>
  
  <p>If so, how would I go about it?</p>
  
  <p>Thanks</p>