diff --git a/src/applications/calendar/controller/PhabricatorCalendarBrowseController.php b/src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
index c382d1ebb0..daa2b37803 100644
--- a/src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
+++ b/src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
@@ -1,95 +1,99 @@
 <?php
 
 final class PhabricatorCalendarBrowseController
   extends PhabricatorCalendarController {
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function processRequest() {
     $now     = time();
     $request = $this->getRequest();
     $user    = $request->getUser();
     $year_d  = phabricator_format_local_time($now, $user, 'Y');
     $year    = $request->getInt('year', $year_d);
     $month_d = phabricator_format_local_time($now, $user, 'm');
     $month   = $request->getInt('month', $month_d);
     $day   = phabricator_format_local_time($now, $user, 'j');
 
 
     $holidays = id(new PhabricatorCalendarHoliday())->loadAllWhere(
       'day BETWEEN %s AND %s',
       "{$year}-{$month}-01",
       "{$year}-{$month}-31");
 
     $statuses = id(new PhabricatorCalendarEventQuery())
       ->setViewer($user)
       ->withDateRange(
         strtotime("{$year}-{$month}-01"),
         strtotime("{$year}-{$month}-01 next month"))
       ->execute();
 
     if ($month == $month_d && $year == $year_d) {
       $month_view = new PHUICalendarMonthView($month, $year, $day);
     } else {
       $month_view = new PHUICalendarMonthView($month, $year);
     }
 
     $month_view->setBrowseURI($request->getRequestURI());
     $month_view->setUser($user);
     $month_view->setHolidays($holidays);
 
     $phids = mpull($statuses, 'getUserPHID');
     $handles = $this->loadViewerHandles($phids);
 
     /* Assign Colors */
     $unique = array_unique($phids);
     $allblue = false;
     $calcolors = CalendarColors::getColors();
     if (count($unique) > count($calcolors)) {
       $allblue = true;
     }
     $i = 0;
     $eventcolor = array();
     foreach ($unique as $phid) {
       if ($allblue) {
         $eventcolor[$phid] = CalendarColors::COLOR_SKY;
       } else {
         $eventcolor[$phid] = $calcolors[$i];
       }
       $i++;
     }
 
     foreach ($statuses as $status) {
       $event = new AphrontCalendarEventView();
       $event->setEpochRange($status->getDateFrom(), $status->getDateTo());
 
       $name_text = $handles[$status->getUserPHID()]->getName();
       $status_text = $status->getHumanStatus();
       $event->setUserPHID($status->getUserPHID());
       $event->setDescription(pht('%s (%s)', $name_text, $status_text));
       $event->setName($status_text);
       $event->setEventID($status->getID());
       $event->setColor($eventcolor[$status->getUserPHID()]);
       $month_view->addEvent($event);
     }
 
     $date = new DateTime("{$year}-{$month}-01");
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb(pht('All Events'));
     $crumbs->addTextCrumb($date->format('F Y'));
 
     $nav = $this->buildSideNavView();
     $nav->selectFilter('all/');
     $nav->appendChild(
       array(
         $crumbs,
         $month_view,
       ));
 
     return $this->buildApplicationPage(
      $nav,
      array(
         'title' => pht('Calendar'),
         'device' => true,
       ));
   }
 
 }
diff --git a/src/applications/calendar/controller/PhabricatorCalendarEventListController.php b/src/applications/calendar/controller/PhabricatorCalendarEventListController.php
index 8a6f1331f9..d7b1019925 100644
--- a/src/applications/calendar/controller/PhabricatorCalendarEventListController.php
+++ b/src/applications/calendar/controller/PhabricatorCalendarEventListController.php
@@ -1,36 +1,40 @@
 <?php
 
 final class PhabricatorCalendarEventListController
   extends PhabricatorCalendarController {
 
   private $queryKey;
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function willProcessRequest(array $data) {
     $this->queryKey = idx($data, 'queryKey');
   }
 
   public function processRequest() {
     $request = $this->getRequest();
     $controller = id(new PhabricatorApplicationSearchController($request))
       ->setQueryKey($this->queryKey)
       ->setSearchEngine(new PhabricatorCalendarEventSearchEngine())
       ->setNavigation($this->buildSideNav());
     return $this->delegateToController($controller);
   }
 
   public function buildSideNav() {
     $user = $this->getRequest()->getUser();
 
     $nav = new AphrontSideNavFilterView();
     $nav->setBaseURI(new PhutilURI($this->getApplicationURI()));
 
     id(new PhabricatorCalendarEventSearchEngine())
       ->setViewer($user)
       ->addNavigationItems($nav->getMenu());
 
     $nav->selectFilter(null);
 
     return $nav;
   }
 
 }
diff --git a/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php b/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
index fded32e162..772b75c3e4 100644
--- a/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
+++ b/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
@@ -1,112 +1,116 @@
 <?php
 
 final class PhabricatorCalendarEventViewController
   extends PhabricatorCalendarController {
 
   private $id;
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function willProcessRequest(array $data) {
     $this->id = $data['id'];
   }
 
   public function processRequest() {
     $request = $this->getRequest();
     $viewer = $request->getUser();
 
     $event = id(new PhabricatorCalendarEventQuery())
       ->setViewer($viewer)
       ->withIDs(array($this->id))
       ->executeOne();
     if (!$event) {
       return new Aphront404Response();
     }
 
     $title = pht('Event %d', $event->getID());
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb($title);
 
     $header = $this->buildHeaderView($event);
     $actions = $this->buildActionView($event);
     $properties = $this->buildPropertyView($event);
 
     $properties->setActionList($actions);
     $box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->addPropertyList($properties);
 
     return $this->buildApplicationPage(
       array(
         $crumbs,
         $box,
       ),
       array(
         'title' => $title,
         'device' => true,
       ));
   }
 
   private function buildHeaderView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
 
     return id(new PHUIHeaderView())
       ->setUser($viewer)
       ->setHeader($event->getTerseSummary($viewer))
       ->setPolicyObject($event);
   }
 
   private function buildActionView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
     $id = $event->getID();
 
     $actions = id(new PhabricatorActionListView())
       ->setObjectURI($this->getApplicationURI('event/'.$id.'/'))
       ->setUser($viewer);
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $event,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $actions->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Edit Event'))
         ->setIcon('fa-pencil')
         ->setHref($this->getApplicationURI("event/edit/{$id}/"))
         ->setDisabled(!$can_edit)
         ->setWorkflow(!$can_edit));
 
     $actions->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Cancel Event'))
         ->setIcon('fa-times')
         ->setHref($this->getApplicationURI("event/delete/{$id}/"))
         ->setDisabled(!$can_edit)
         ->setWorkflow(true));
 
     return $actions;
   }
 
   private function buildPropertyView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
 
     $properties = id(new PHUIPropertyListView())
       ->setUser($viewer)
       ->setObject($event);
 
     $properties->addProperty(
       pht('Starts'),
       phabricator_datetime($event->getDateFrom(), $viewer));
 
     $properties->addProperty(
       pht('Ends'),
       phabricator_datetime($event->getDateTo(), $viewer));
 
     $properties->addSectionHeader(
       pht('Description'),
       PHUIPropertyListView::ICON_SUMMARY);
     $properties->addTextContent($event->getDescription());
 
     return $properties;
   }
 
 }
diff --git a/src/applications/calendar/controller/PhabricatorCalendarViewController.php b/src/applications/calendar/controller/PhabricatorCalendarViewController.php
index 16cd41dffa..e14dc7073a 100644
--- a/src/applications/calendar/controller/PhabricatorCalendarViewController.php
+++ b/src/applications/calendar/controller/PhabricatorCalendarViewController.php
@@ -1,97 +1,114 @@
 <?php
 
 final class PhabricatorCalendarViewController
   extends PhabricatorCalendarController {
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function processRequest() {
     $user = $this->getRequest()->getUser();
 
     $now     = time();
     $request = $this->getRequest();
     $year_d  = phabricator_format_local_time($now, $user, 'Y');
     $year    = $request->getInt('year', $year_d);
     $month_d = phabricator_format_local_time($now, $user, 'm');
     $month   = $request->getInt('month', $month_d);
     $day   = phabricator_format_local_time($now, $user, 'j');
 
 
     $holidays = id(new PhabricatorCalendarHoliday())->loadAllWhere(
       'day BETWEEN %s AND %s',
       "{$year}-{$month}-01",
       "{$year}-{$month}-31");
 
     $statuses = id(new PhabricatorCalendarEventQuery())
       ->setViewer($user)
       ->withInvitedPHIDs(array($user->getPHID()))
       ->withDateRange(
         strtotime("{$year}-{$month}-01"),
         strtotime("{$year}-{$month}-01 next month"))
       ->execute();
 
     if ($month == $month_d && $year == $year_d) {
       $month_view = new PHUICalendarMonthView($month, $year, $day);
     } else {
       $month_view = new PHUICalendarMonthView($month, $year);
     }
 
     $month_view->setBrowseURI($request->getRequestURI());
     $month_view->setUser($user);
     $month_view->setHolidays($holidays);
 
     $phids = mpull($statuses, 'getUserPHID');
     $handles = $this->loadViewerHandles($phids);
 
     foreach ($statuses as $status) {
       $event = new AphrontCalendarEventView();
       $event->setEpochRange($status->getDateFrom(), $status->getDateTo());
       $event->setUserPHID($status->getUserPHID());
       $event->setName($status->getHumanStatus());
       $event->setDescription($status->getDescription());
       $event->setEventID($status->getID());
       $month_view->addEvent($event);
     }
 
     $date = new DateTime("{$year}-{$month}-01");
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb(pht('My Events'));
     $crumbs->addTextCrumb($date->format('F Y'));
 
     $nav = $this->buildSideNavView();
     $nav->selectFilter('/');
     $nav->appendChild(
       array(
         $crumbs,
         $this->getNoticeView(),
         $month_view,
       ));
 
     return $this->buildApplicationPage(
      $nav,
      array(
         'title' => pht('Calendar'),
         'device' => true,
       ));
   }
 
   private function getNoticeView() {
     $request = $this->getRequest();
     $view    = null;
 
     if ($request->getExists('created')) {
       $view = id(new AphrontErrorView())
         ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
         ->setTitle(pht('Successfully created your status.'));
     } else if ($request->getExists('updated')) {
       $view = id(new AphrontErrorView())
         ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
         ->setTitle(pht('Successfully updated your status.'));
     } else if ($request->getExists('deleted')) {
       $view = id(new AphrontErrorView())
         ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
         ->setTitle(pht('Successfully deleted your status.'));
+    } else if (!$request->getUser()->isLoggedIn()) {
+      $login_uri = id(new PhutilURI('/auth/start/'))
+        ->setQueryParam('next', '/calendar/');
+      $view = id(new AphrontErrorView())
+        ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
+        ->setTitle(
+          pht(
+            'You are not logged in. %s to see your calendar events.',
+            phutil_tag(
+              'a',
+              array(
+                'href' => $login_uri),
+              pht('Log in'))));
     }
 
     return $view;
   }
 
 }