title: Azure Mobile App losing TimeZone of DateTimeOffset
body: <p>When I send a <code>DateTimeOffset</code> value to an Azure Mobile App inside an object property it changes it to UTC, but I want to keep the <code>TimeZone</code>. </p>
  
  <p>Both client and server <code>JsonSerializerSettings</code> are set to <code>RoundtripKind</code> by default but seems that this is not working.</p>
  
  <p>How can I keep the <code>TimeZone</code>when working with <code>DateTimeOffset</code> properties?</p>