public DateTimePlus::hasErrors() Detects

The value of the format passed to the constructor. File core/lib/Drupal/Component/Datetime/DateTimePlus

File core/lib/Drupal/Component/Datetime/DateTimePlus.php, line 30 Class

Defines the format that date and time should be stored in. File core/modules/datetime/

Provides views data for the datetime module. File core/modules/datetime/datetime.views.inc

public DateFormatterInterface::format($timestamp,

public FormattedDateDiff::getMaxAge()

public DateFormatInterface::getPattern()

Wraps DateTime(). This class wraps the PHP DateTime class with more flexible initialization parameters, allowing a date to be created from an

protected static Datetime::getHtml5TimeFormat($element)