### Attributes:
- empty - If true, the empty select option is shown. If a string,
that string is displayed as the empty element.
- value The selected value of the input.
- format Set to 12 or 24 to use 12 or 24 hour formatting. Defaults to 24.
public function hour($fieldName, array $options = []) { $options = $this->_injectStyles($options, 'form-control'); return parent::hour($fieldName, $options); }