title: How to get the difference time of two datetime variables in azure logic app in milliseconds
body: <p>I have created logic app in azure, in that I have created two variables <code>startTime</code> and <code>endTime</code> with this <code>utcNow('yyyy-MM-ddTHH:mm:ss.fffZ')</code> value.</p>
  <p>I want to get the difference time of the above variables in milliseconds.</p>
  <p>So, can anyone suggest me how to do this?</p>