title: Hour difference between two times(HH:MM:SS a)in momentjs
body: <p>I have two time without date</p>
  
  <pre><code>var startTime="12:16:59 am";
  var endTime="06:12:07 pm";
  </code></pre>
  
  <p>I want to show the total hours in between the above times by using <code>moment.js.</code></p>
  
  <p>If it's not possible in  <code>moment.js</code> then please let me know using by <code>javascript</code>.</p>
  
  <p><strong>Inputs:</strong></p>
  
  <pre><code>var startTime="01:30:00 am";
  var endTime="2:45:07 pm";
  </code></pre>
  
  <p><strong>Expected Output:</strong> </p>
  
  <pre><code>1 hour and 15 minutes
  </code></pre>