updatedAt and createdAt does not have timezone information

While getting lead information via any of the "GET" REST APIs, I see that both createdAt and updatedAt does not contain any timezone information as described in the API example.  For instance, "Get Lead By ID" says to return:

1. {
2. "requestId":"e42b#14272d07d78",
3. "success":true,
4. "result":[
5. {
6. "id":60,
7. "email":"kjashaedd@klooblept.com",
8. "firstName":"Kataldar",
9. "updatedAt":"2013-11-21T11:47:30-08:00"
10. }
11. ]
12. }

However, I get the following:

{
  "requestId": "3eae#14ce8b9cffd",
  "result": [
    {
      "id": 1,
      "updatedAt": "2015-04-09 21:20:15",
      "lastName": "xxxx",
      "email": "xxx.xxx@xxxxx.com",
      "createdAt": "2015-04-09 21:14:03",
      "firstName": "xxxx"
    }
  ],
  "success": true
}

As you can see my results have no timezone.  So, the problem for me is that when requesting "Lead Changes", the API needs the time with timezone when using the Paging Token API:
 

Parameters	Required/Optional	Description
sinceDatetime	Required	Supported datetime format: 2014-10-06T13:22:17-08:00 2014-10-06T13:22-07:00 2014-10-06

Is there anyway to get the timezone from a lead object?