title: How I can get the difference by time string and Datetime now?
body: <p>i want to calculate a checktime to the time now and get the hours. </p>
  
  <p>I have a string "time" for example...</p>
  
  <pre>
  Jun 06 2013 07:23:06
  </pre>
  
  <p>and with DateTime.Now I get the Time now. The Problem is now that i can't calculate the difference :( </p>
  
  <p>I need them in my Project where I get from the License Server the time from a user and I want to show the difference to now. I want show this in hours.</p>