diff -u b/comment_timer.module b/comment_timer.module
--- b/comment_timer.module
+++ b/comment_timer.module
@@ -74,6 +74,11 @@
         'description' => t('Time spent on this comment.'),
         'weight' => 0,
       );
+      $return['comment']['comment_node_' . $type->type]['display']['comment_time_inclusion'] = array(
+        'label' => t('Comment time inclusion'),
+        'description' => t('Link to include/exclude comment time in node time.'),
+        'weight' => 0,
+      );
       $return['node'][$type->type]['display']['comment_timer'] = array(
         'label' => t('Comment timer'),
         'description' => t('Total time spent on this node\'s comments.'),
@@ -296,10 +301,98 @@
       '#prefix' => '<div class="comment-timer-data">',
       '#suffix' => '</div>',
     );
+    $field_view_mode_settings = field_view_mode_settings('comment', $comment->node_type);
+    $real_view_mode = $field_view_mode_settings[$view_mode]['custom_settings'] ? $view_mode : 'default';
+    $field_info_extra_fields = field_info_extra_fields('comment', 'comment_node_issue', 'display');
+    if ($field_info_extra_fields['comment_time_inclusion']['display'][$real_view_mode]['visible']) {
+      if (comment_access('edit', $comment)) {
+        drupal_add_js('misc/ajax.js');
+        $comment->content['links']['comment_timer'] = array(
+          '#theme' => 'links',
+          '#links' => array(
+            'comment-timer-inclusion' => comment_timer_status_link_array($comment),
+          ),
+        );
+      }
+      else {
+        $markup = '<span class="comment-timer-status comment-timer-status-noedit comment-timer-status-' . $comment->comment_timer_status . '">';
+        $markup .= $comment->comment_timer_status ? t('Included in total issue time') : t('Excluded from total issue time');
+        $markup .= '</span>';
+        $comment->content['links']['comment_timer'] = array(
+          '#theme' => 'links',
+          '#links' => array(
+            'comment-timer-inclusion' => array(
+              'title' => $markup,
+              'html' => TRUE,
+            ),
+          ),
+        );
+      }
+    }
   }
 }
 
 /**
+ * Create the ingredients of a comment timer status ajax link.
+ */
+function comment_timer_status_link_array($comment) {
+  return array(
+    'title' => $comment->comment_timer_status ? t('Exclude from issue total time') : t('Include in issue total time'),
+    'href' => 'comment-timer-inclusion-toggle/' . $comment->cid . '/nojs',
+    'attributes' => array(
+      'class' => array('use-ajax'),
+    ),
+  );
+}
+
+/**
+ * Implements hook_menu().
+ */
+function comment_timer_menu() {
+  $items = array();
+  $items['comment-timer-inclusion-toggle/%comment'] = array(
+    'title' => 'Toggle comment timer inclusion',
+    'page callback' => 'comment_timer_inclusion_toggler',
+    'page arguments' => array(1),
+    'access callback' => 'comment_access',
+    'access arguments' => array('edit', 1),
+    'type' => MENU_CALLBACK,
+  );
+  return $items;
+}
+
+/**
+ * Menu callback to toggle the comment time status property.
+ */
+function comment_timer_inclusion_toggler($comment, $type = 'ajax') {
+  if ($comment->comment_timer_status == 0) {
+    $comment->comment_timer_status = 1;
+  }
+  else {
+    $comment->comment_timer_status = 0;
+  }
+  comment_save($comment);
+  if ($type == 'ajax') {
+    $link = comment_timer_status_link_array($comment);
+    $node = node_load($comment->nid, NULL, TRUE);
+    $time = array(
+      '#theme' => 'comment_timer_hhmmss',
+      '#seconds' => isset($node->comment_timer) ? $node->comment_timer : 0,
+      '#label_display' => 'hidden',
+    );
+    $commands = array();
+    $commands[] = ajax_command_html('#comment-' . $comment->cid . '+div .comment-timer-inclusion', l($link['title'], $link['href'], array('attributes' => $link['attributes'])));
+    drupal_alter('comment_timer_commands', $commands, $time);
+    $page = array('#type' => 'ajax', '#commands' => $commands);
+    ajax_deliver($page);
+  }
+  else {
+    drupal_goto('node/' . $comment->nid);
+  }
+}
+
+
+/**
  * Implements hook_comment_delete().
  */
 function comment_timer_comment_delete($comment) {