title: WCF REST JSON API: DateTime serialization in DataContractJsonSerializer
body: <p>does anyone know why DataContractJsonSerializer serializes DateTime properties to include the timezone?  i.e., I have a .NET DateTime on an object which is being serialized to JSON.  It's serializing to 1303500600000+0000 instead of 1303500600000.</p>
  
  <p>This means that when it's deserialized by DataContractJsonSerializer inside a client app, it will be converted to the "local" time.  In reality, the datetime should remain timezone agnostic.</p>