Provides the ability to select a date range and saves it in the database in custom format.
Field::make( 'date_range', 'date', __( 'Select Date Range', 'crb' ) ),
array(
'value' => '2021-02-28 to 2021-03-03',
'from' => '2021-02-28',
'to' => '2021-03-03',
)