title: c# time calculations
body: <p>Does someone knows how to calculate the total hours between 2 times?
  For example if a worker clocks in at 8:00 and out at 16:00, I would like to know that in decimal it's 8.0 hours and it's 8:00 hours.</p>
  
  <p>I'm using C# framework 2.0.
  The variables that hold the in and out time are of type string.</p>
  
  <p>TY</p>