Date format in SAP Netweaver Gateway

Hi All,

         I am new to SAP Netweaver Gateway. When i tired to do the Create Operation in the Gateway. I found that the date should be given in the below format. ( 2014-04-06T00:00:00 ).

My question is from the front end UI5 screen if we are passing the Contract Start date how can we pass the date with timestamp. Is it necessary should be pass the date only in the above said format. If so, in which format the date will go to the backend RFC. Currently the date field is of 8 chars. kindly suggest

Thanks in Advance.