Выбор заказов за промежуток времени, Bitrix D7

\Bitrix\Main\Loader::includeModule('sale');

$from = new DateTime('03.10.2017 05:20:20');
$to = new DateTime('11.10.2017 22:00:00');

$arQueryParams = [
    'select' => ['*'],
    'filter' => [
        ['>=DATE_INSERT' => $from->format('d.m.Y H:i:s')],
        ['<=DATE_INSERT' => $to->format('d.m.Y H:i:s')]
    ]
];

$obj =  \Bitrix\Sale\Order::getList($arQueryParams);

$result = [];
while ($r = $obj->fetch()) {
    $result[] = $r;
}

print_r($result);