diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 0d86575126..bfad24494a 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -3794,6 +3794,7 @@ phutil_register_library_map(array(
     'PhragmentZIPController' => 'applications/phragment/controller/PhragmentZIPController.php',
     'PhrequentConduitAPIMethod' => 'applications/phrequent/conduit/PhrequentConduitAPIMethod.php',
     'PhrequentController' => 'applications/phrequent/controller/PhrequentController.php',
+    'PhrequentCurtainExtension' => 'applications/phrequent/engineextension/PhrequentCurtainExtension.php',
     'PhrequentDAO' => 'applications/phrequent/storage/PhrequentDAO.php',
     'PhrequentListController' => 'applications/phrequent/controller/PhrequentListController.php',
     'PhrequentPopConduitAPIMethod' => 'applications/phrequent/conduit/PhrequentPopConduitAPIMethod.php',
@@ -8498,6 +8499,7 @@ phutil_register_library_map(array(
     'PhragmentZIPController' => 'PhragmentController',
     'PhrequentConduitAPIMethod' => 'ConduitAPIMethod',
     'PhrequentController' => 'PhabricatorController',
+    'PhrequentCurtainExtension' => 'PHUICurtainExtension',
     'PhrequentDAO' => 'PhabricatorLiskDAO',
     'PhrequentListController' => 'PhrequentController',
     'PhrequentPopConduitAPIMethod' => 'PhrequentConduitAPIMethod',
diff --git a/src/applications/phrequent/engineextension/PhrequentCurtainExtension.php b/src/applications/phrequent/engineextension/PhrequentCurtainExtension.php
new file mode 100644
index 0000000000..25d0e424a6
--- /dev/null
+++ b/src/applications/phrequent/engineextension/PhrequentCurtainExtension.php
@@ -0,0 +1,87 @@
+<?php
+
+final class PhrequentCurtainExtension
+  extends PHUICurtainExtension {
+
+  const EXTENSIONKEY = 'phrequent.time';
+
+  public function shouldEnableForObject($object) {
+    return ($object instanceof PhrequentTrackableInterface);
+  }
+
+  public function getExtensionApplication() {
+    return new PhabricatorPhrequentApplication();
+  }
+
+  public function buildCurtainPanel($object) {
+    $viewer = $this->getViewer();
+
+    $events = id(new PhrequentUserTimeQuery())
+      ->setViewer($viewer)
+      ->withObjectPHIDs(array($object->getPHID()))
+      ->needPreemptingEvents(true)
+      ->execute();
+    $event_groups = mgroup($events, 'getUserPHID');
+
+    if (!$events) {
+      return;
+    }
+
+    $handles = $viewer->loadHandles(array_keys($event_groups));
+    $status_view = new PHUIStatusListView();
+
+    foreach ($event_groups as $user_phid => $event_group) {
+      $item = new PHUIStatusItemView();
+      $item->setTarget($handles[$user_phid]->renderLink());
+
+      $state = 'stopped';
+      foreach ($event_group as $event) {
+        if ($event->getDateEnded() === null) {
+          if ($event->isPreempted()) {
+            $state = 'suspended';
+          } else {
+            $state = 'active';
+            break;
+          }
+        }
+      }
+
+      switch ($state) {
+        case 'active':
+          $item->setIcon(
+            PHUIStatusItemView::ICON_CLOCK,
+            'green',
+            pht('Working Now'));
+          break;
+        case 'suspended':
+          $item->setIcon(
+            PHUIStatusItemView::ICON_CLOCK,
+            'yellow',
+            pht('Interrupted'));
+          break;
+        case 'stopped':
+          $item->setIcon(
+            PHUIStatusItemView::ICON_CLOCK,
+            'bluegrey',
+            pht('Not Working Now'));
+          break;
+      }
+
+      $block = new PhrequentTimeBlock($event_group);
+      $item->setNote(
+        phutil_format_relative_time(
+          $block->getTimeSpentOnObject(
+            $object->getPHID(),
+            time())));
+
+      $status_view->addItem($item);
+    }
+
+
+    return $this->newPanel()
+      ->setHeaderText(pht('Time Spent'))
+      ->setOrder(40000)
+      ->appendChild($status_view);
+  }
+
+}