title: moment.preciseDiff() not working properly
body: <p>I am using momentjs precise difference to calculate the time difference between two moment objects but each time it returns 6 hours, however the difference should be less then 2 hours. Below is my code.</p>
  
  <p>The first object contains US date which I converted using moment.tz('Asia/Karachi').</p>
  
  <p><a href="https://i.stack.imgur.com/mWi80.png" rel="nofollow noreferrer">Check this image</a>:
  <img src="https://i.stack.imgur.com/mWi80.png" alt="Check this image"></p>