Hi datetimepicker in kendo i dono abt it,but just a thought if u can get the value from datetimepicker and pass through a function as below which converts to UTC and then send it to server , i believe ur task is complete..sry if i am wrong...
function convertToUtc(str) {
var date = new Date(str);
var year = date.getUTCFullYear();
var month = date.getUTCMonth()+1;
var dd = dategetUTCDate();
var hh = date.getUTCHours();
var mi = date.getUTCMinutes();
var sec = date.getUTCSeconds();
// 2010-11-12T13:14:15Z
theDate = year + "-" + (month [1] ? month : "0" + month [0]) + "-" +
(dd[1] ? dd : "0" + dd[0]);
theTime = (hh[1] ? hh : "0" + hh[0]) + ":" + (mi[1] ? mi : "0" + mi[0]);
return [ theDate, theTime ].join("T");
}