title: Convert string to TimeSpan
body: <p>I need to convert this into a timespan:</p>
  
  <ul>
  <li>8</li>
  <li>8.3</li>
  <li>8.15</li>
  </ul>
  
  <p>When I do it like so:</p>
  
  <pre><code>DateTime s = booking.TourStartDate.Add(TimeSpan.Parse(booking.TourStartTime.Replace(".", ":")));
  </code></pre>
  
  <p>It will end up adding say '10' (10am) into days rather than the time that it is, albeit in a stupid format that it is.</p>