title: Angular 5 - how to make the period field type lowercase in DatePipe
body: <p>Using DatePipe in Angular 5.1, I need to format the period field type (AM/PM) in lowercase. According to the <a href="https://angular.io/api/common/DatePipe" rel="noreferrer">documentation</a>,</p>
  
  <pre><code>Tuesday, December 19, 7:00 am 
  </code></pre>
  
  <p>should be </p>
  
  <pre><code>date:'EEEE, MMMM d, h:mm a'
  </code></pre>
  
  <p>However, the period field type always displays in uppercase, so I see this:</p>
  
  <pre><code>Tuesday, December 19, 7:00 AM
  </code></pre>
  
  <p>Am I doing something wrong or is this a known defect wtih Angular's date formatting?</p>