title: C# convert dates to Timestamp
body: <p>I got a date in the below format:
  2014-07-18</p>
  
  <p>I need the unixTimeStamp of this date like PHP gives. I want to store those in a msAccess table which I can later sort on this timestamp value.</p>
  
  <p>PHP returns this timestamp for the above date:
  1405641600</p>
  
  <p>How can I do this?</p>
  
  <p>Thanks</p>