KendoUI DataSource timestamp handling

gistfile1.js

transport: {
    parameterMap: function (options, operation) {
        if (operation === "update" || operation === "create") {
            $.each(options, function (key, value) {
                if (value instanceof Date) {
                    options[key] = Math.round(value.getTime() / 1000);
                }
            });
        }
        return options;
    }
},
schema: {
    model: {
        fields: {
            dateField: {
                parse: function (value) {
                    if (value && !(value instanceof Date)) {
                        value = new Date(value * 1000);
                    }
                    return value;
                }
            }
        }
    }
}