I am trying to get the time value from the a DateTime field in SharePoint 2013 online.

When I try to retrieve the value of the field, it is showing only my browser time value. I am using the following code,


var ListItem;

function GetValue(){

   var SPContext = new SP.ClientContext(siteUrl);

   var list= SPContext.get_web().get_lists().getByTitle(listName);

   ListItem = list.getItemById(12345);

   SPContext.load(ListItem); 

   SPContext.executeQueryAsync(GetListItemById_Success, GetListItemById_Fail);
}

function GetListItemById_Success()
{

   var dateTimeValue = ListItem.get_item("DateTimeColumnName");

   alert(dateTimeValue);


}


Let me know how to get the stored DateTime Value. I'm unable to set the property set_datesInUtc(false).