Remove TimeZone from REST webservices in C#

See more:

C#

SQL-Server

C#4.0

REST

I am fetching Start Date and End Date from Database by following Query:

var contents = from u in entity.Submit_App
                       where u.EndDate >= currenteDate && u.StartDate < currenteDate
                       select new { u.App_Icon, u.App_ID, u.Actual_Price, u.App_Description, u.App_Title, u.EndDate,u.StartDate, u.iTunes_Link };

when checking the web services its gives the following output

"EndDate":"2013-09-28T19:30:00+05:30","StartDate":"2013-09-26T18:01:00+05:30"

I need to remove +5:30 in both start and End Date or Atleast Add "GMT" in front of +5:30