Hi,
The best option is to use a custom code, that is persistent during udpates.
Try adding this custom code to the functions.php in your theme/child theme directory. Before editing, please make sure to have a full site back-up just in case!
add_filter( 'asl_results', 'asl_custom_date_results', 10, 1 );
function asl_custom_date_results( $results ) {
$date_format = get_option( 'date_format' );
foreach ($results as $k=>&$r) {
$r->date = date_i18n( $date_format, strtotime( $r->date ) );
}
return $results;
}
This will change the date format to the WP global format. You can enter a custom format by changing the $date_format variable.
Best regards,
Ernes M.