I have a ruby-on-rails server that implements a JSON REST API e.g.
http://my-server.com/end_of_promotion.json
Currently, the answer is:
{
    date: "2013-03-31T14:29:16Z"
}
In my model, date is an attribute of type: datetime.
Now, I would like the client to display this date in the user timezone. How should I design the API and the client code to make it happen?
 
    