laravel execl导入时间变数字

use Carbon\Carbon;
use PhpOffice\PhpSpreadsheet\Shared\Date;

...

public static function transformDateTime(string $value, string $format = 'Y-m-d')
{
    try {
        return Carbon::instance(Date::excelToDateTimeObject($value))->format($format);
    } catch (\ErrorException $e) {
        return Carbon::createFromFormat($format, $value);
    }
}