title: Difference between two timestamp in hh:mm:ss format
body: <p>I have two timestamp like below format in my database.</p>
  
  <pre><code>$time1 = 4/19/2019 12:21:01 AM
  $time2 = 4/19/2019 12:22:50 AM
  </code></pre>
  
  <p>I want get difference between this two timestamp like</p>
  
  <pre><code>12:21:01
  </code></pre>
  
  <p>Let me know if someone can give me idea/solution for do it using php.</p>