- add public attribute to Search form model

public $created_at_range;
public $created_at_start;
public $created_at_end;

- add range attribute to rules as safe attribute

[['created_at_range'], 'safe'],
	
- add to gridview

'filter' => \kartik\daterange\DateRangePicker::widget([
	'model' => $searchModel,
	'attribute' => 'created_at_range',
	'convertFormat' => true,
	'hideInput' => true,
	'pluginOptions' => [
		'locale' => [
			'format' => 'Y-m-d'
		],
		'allowClear' => true
	],
]),

- add behavior to Search form model

[
	'class' => \ant\behaviors\DateTimeRangeBehavior::className(),
	'attribute' => 'created_at_range',
	'dateStartAttribute' => 'created_at_start',
	'dateEndAttribute' => 'created_at_end',
],

- add filter to Search form model's query

$query->andFilterWhere(['between', 'date(payment.created_at)', $this->created_at_start, $this->created_at_end]);