Insert date programatically in custom module I am programatically saving values from an array $customer into a content type. The below code works fine and populates the content type customer_profile except for the field date of birth. This field is of type date and date type is set as date only (not date and time). The value in $customer['dob'] is '19/12/1938'. How do I insert this value?

$node_data['type'] = 'customer_profile';
$node_data['title'] = $customer['First Name'].' '.$customer['Last Name'];
$node_data['field_customer_gender']['value'] = $customer['Gender'];
$node_data['field_date_of_birth']['value'] = $customer['dob'];
$node = Node::create($node_data);
$node-&gt;setPublished(TRUE);
$node-&gt;save();
I think correct format is 'yyyy-mm-dd', try to insert '1938-12-19'