Delete Entries based on Payment Status & Entry Time

/*
 * Check all of our Entries that have been created.
 * If they are 24 hours old & Payment Status is
 * processing then we will delete them, and automatically
 * re-open our Gravity Form.
 *
 * Dan Gavin
 */

function gf_published_entry_time( $entry, $form ) {

    global $wpdb;

    // Get all Entries for our form ID 1
    $entries =  RGFormsModel::get_leads(1, '', 'DESC', '', '0', '99999999');
    foreach ($entries as $entry){

        // Check to see if the User has paid or not

        // Created on
        $time = strtotime($entry['date_created']);
        // Time on Day Ago
        $sub_time = '-24 hour';
        $add_time = '+24 hour';
        $one_day_ago = strtotime($sub_time);

        if(
            $entry['payment_status'] == 'Processing' &&
            $time >= $one_day_ago
        ){

        // This is here because I am showing the exact time of creation, is there a workaround?
        if ( function_exists( 'date_default_timezone_set' ) )
            date_default_timezone_set('America/Chicago'); //this overwrite all settings!!

        // It's sooner than 24 hours, so let's show a counter and expiration date
        $time_left = $time - $one_day_ago;
        $days_left = floor($time_left / 86400); // 86400 = seconds per day
        $hours_left = floor(($time_left - $days_left * 86400) / 3600); // 3600 = seconds per hour
        $mins_left = floor(($time_left - $days_left - $hours_left * 3600) / 60); // 60 = seconds per min
        echo '<b>'.$entry["6.3"].' '.$entry["6.6"].'</b>';
        echo '<br/>Created on: '.date_i18n('M d, Y h:i a', $time);
        $total_time = strtotime($add_time, $time);
        echo "<br/>$hours_left hours & $mins_left min remaining";
        echo '<br/><i>This entry will be deleted on '.date_i18n('M d, Y h:i a', $total_time).'</i><br/><br/>';

        // This is here because I am showing the exact time of creation, is there a workaround?
        // This resets the timezone, without this it messes up the counters...
        if ( function_exists( 'date_default_timezone_set' ) )
            date_default_timezone_set('UTC'); //this overwrite all settings!!

        } else {

            echo '<p><b>'.$entry["6.3"].' '.$entry["6.6"].'</b> hase been deleted.</p>';
            // Get our Leads
            $lead_id                = $entry['id'];
            $lead_table             = RGFormsModel::get_lead_table_name();
            $lead_notes_table       = RGFormsModel::get_lead_notes_table_name();
            $lead_detail_table      = RGFormsModel::get_lead_details_table_name();
            $lead_detail_long_table = RGFormsModel::get_lead_details_long_table_name();

            // Delete from detail long
            $sql = $wpdb->prepare( " DELETE FROM $lead_detail_long_table
                                    WHERE lead_detail_id IN(
                                    SELECT id FROM $lead_detail_table WHERE lead_id=%d
                                    )", $lead_id );
            $wpdb->query( $sql );

            // Delete from lead details
            $sql = $wpdb->prepare( "DELETE FROM $lead_detail_table WHERE lead_id=%d", $lead_id );
            $wpdb->query( $sql );

            // Delete from lead notes
            $sql = $wpdb->prepare( "DELETE FROM $lead_notes_table WHERE lead_id=%d", $lead_id );
            $wpdb->query( $sql );

            // Delete from lead
            $sql = $wpdb->prepare( "DELETE FROM $lead_table WHERE id=%d", $lead_id );
            $wpdb->query( $sql );

        }
    }

}