aibol,
var prepareModel = function (ModelToPrepare) {
ModelToPrepare.StartDate = getDateFromJsonModel(ModelToPrepare.StartDateJson);
*!*
ModelToPrepare.CurrentServerDateJson.Hour += 5;
ModelToPrepare.CurrentServerDateJson.Minute += 15;
*/!*
ModelToPrepare.CurrentServerDate = getDateFromJsonModel(ModelToPrepare.CurrentServerDateJson);
ModelToPrepare.StepEndDate = getDateFromJsonModel(ModelToPrepare.StepEndDateJson);
};