title: How to get current timestamp
body: <p>I am connecting to an API and one of the parameters is Long <em>(13 digits)</em> to hold the current <code>timestamp</code> in VB.Net which represents milliseconds passed from <code>0:00:00 01.01.1970 in GMT</code> until 
  the current time.</p>
  
  <p>The format should be like this <code>1290932238757</code></p>
  
  <p>I tried this syntex :</p>
  
  <pre><code>DirectCast((Datetime.Now - New DateTime(1970, 1, 1)).TotalMilliseconds, Int64)
  </code></pre>
  
  <p>But the output was : </p>
  
  <pre><code>01/12/2013 02:06:24
  </code></pre>