title: How to convert SRT file timestamp into milliseconds
body: <p>I am parsing an SRT file into an object and the schema is like this:</p>
  <pre><code>[{
      id: '1',
      startTime: '00:00:11,544',
      endTime: '00:00:12,682',
      text: 'Hello' 
  }]
  </code></pre>
  <p>So, I will need a handy function to convert the timestamps into milliseconds for cross-referencing with my audio file.</p>
  <p>Is this a standard timestamp? Can it be easily converted into a <code>Date</code> object?</p>