title: Unix time stamp or string with time zone?
body: <p>I my web REST API service I've decided to return a dateTime data as a string with a timezone which looks like this: <code>"someDate":"2012-01-23T22:52:37.039+02:00"</code> I wonder, how idiomatic is it? If I returned it as Unix time stamp, would it be more sensible?</p>