https://api.drupal.org/api/drupal/core%21modules%21datetime%21src%21Plugin%21Validation%21Constraint%21DateTimeFormatConstraint.php/class/DateTimeFormatConstraint/10
class DateTimeFormatConstraint | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21datetime%21src%21Plugin%21Validation%21Constraint%21DateTimeFormatConstraint.php/property/DateTimeFormatConstraint%3A%3AbadValue/8.9.x
DateTimeFormatConstraint::$badValue | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21datetime%21src%21Plugin%21Validation%21Constraint%21DateTimeFormatConstraint.php/class/DateTimeFormatConstraint/11.x
class DateTimeFormatConstraint | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21datetime%21src%21Plugin%21Validation%21Constraint%21DateTimeFormatConstraint.php/class/DateTimeFormatConstraint/9
class DateTimeFormatConstraint | Drupal API
classdrupalapi