title: Is there a class that holds both dateTime and Timespan together?
body: <p>I'm looking for a class that represents an concurrent event,
  for example: 
  On every work day, meeting from 10:00 that takes 2 hours. etc..</p>
  
  <p>I know how to implement it my self, i wondered if there is a predifined class.</p>
  
  <p>tnx!</p>