title: How to convert the firebase timestamp using angular date pipe
body: <p>I am trying to display some firebase timestamp in the template view, Unfortunately no luck with the angular datePipe.</p>
  
  <pre><code>&lt;p&gt;Seen {{user.updatedAt | date: 'yyyy/MM/dd h:mm:ss a'}}&lt;/p&gt;
  </code></pre>
  
  <p>I do get this error:</p>
  
  <pre><code>     ERROR Error: InvalidPipeArgument: 
  'Unable to convert "Timestamp(seconds=1528515928, nanoseconds=105000000)" 
  into a date' for pipe 'DatePipe
  </code></pre>