title: Dates without time in ASP.NET Web API's JSON output
body: <p>Is there a simple way to configure JSON.NET so that <strong>some</strong> <code>DateTime</code> fields will be formatted without time and other <code>DateTime</code> fields will still be formatted with time?</p>
  
  <p>Example: </p>
  
  <pre><code>{ firstName: 'John', lastName : 'Doe', birthday: '1965-09-23' }
  </code></pre>