Twig PHP typing (from https://github.com/EasyCorp/EasyAdminBundle/blob/master/src/Resources/views/crud/field/datetime.html.twig )

example.html.twig

  {# @var ea \EasyCorp\Bundle\EasyAdminBundle\Context\AdminContext #}
{# @var field \EasyCorp\Bundle\EasyAdminBundle\Dto\FieldDto #}
{# @var entity \EasyCorp\Bundle\EasyAdminBundle\Dto\EntityDto #}
<time datetime="{{ field.value|date('c') }}" title="{{ field.value|date('r') }}">{{ field.formattedValue }}</time>