Magento 2: How to get current date, date time with format in .phtml file?

protected $_date;
 public function __construct(\Magento\Framework\Stdlib\DateTime\TimezoneInterface $date)
{
  $this->_date =  $date;
}

then use like this

$this->_date->date()->format('Y-m-d H:i:s');

You can use this in phtml file :

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$objDate = $objectManager->create('Magento\Framework\Stdlib\DateTime\DateTime');
$date = $objDate->gmtDate();

But using directly object manager in phtml file is not a good practice.