diff --git a/src/applications/calendar/storage/PhabricatorCalendarEvent.php b/src/applications/calendar/storage/PhabricatorCalendarEvent.php
index 5d4d3cdd5a..6f13d99112 100644
--- a/src/applications/calendar/storage/PhabricatorCalendarEvent.php
+++ b/src/applications/calendar/storage/PhabricatorCalendarEvent.php
@@ -1,415 +1,415 @@
 <?php
 
 final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   implements PhabricatorPolicyInterface,
   PhabricatorMarkupInterface,
   PhabricatorApplicationTransactionInterface,
   PhabricatorSubscribableInterface,
   PhabricatorTokenReceiverInterface,
   PhabricatorDestructibleInterface,
   PhabricatorMentionableInterface,
   PhabricatorFlaggableInterface {
 
   protected $name;
   protected $userPHID;
   protected $dateFrom;
   protected $dateTo;
   protected $status;
   protected $description;
   protected $isCancelled;
   protected $isAllDay;
   protected $mailKey;
 
   protected $viewPolicy;
   protected $editPolicy;
 
   private $invitees = self::ATTACHABLE;
   private $appliedViewer;
 
   const STATUS_AWAY = 1;
   const STATUS_SPORADIC = 2;
 
   public static function initializeNewCalendarEvent(PhabricatorUser $actor) {
     $app = id(new PhabricatorApplicationQuery())
       ->setViewer($actor)
       ->withClasses(array('PhabricatorCalendarApplication'))
       ->executeOne();
 
     return id(new PhabricatorCalendarEvent())
       ->setUserPHID($actor->getPHID())
       ->setIsCancelled(0)
       ->setIsAllDay(0)
       ->setViewPolicy($actor->getPHID())
       ->setEditPolicy($actor->getPHID())
       ->attachInvitees(array())
       ->applyViewerTimezone($actor);
   }
 
   public function applyViewerTimezone(PhabricatorUser $viewer) {
     if ($this->appliedViewer) {
       throw new Exception(pht('Viewer timezone is already applied!'));
     }
 
     $this->appliedViewer = $viewer;
 
     if (!$this->getIsAllDay()) {
       return $this;
     }
 
     $zone = $viewer->getTimeZone();
 
 
     $this->setDateFrom(
       $this->getDateEpochForTimeZone(
         $this->getDateFrom(),
-        new DateTimeZone('GMT+12'),
+        new DateTimeZone('Pacific/Kiritimati'),
         'Y-m-d',
         null,
         $zone));
 
     $this->setDateTo(
       $this->getDateEpochForTimeZone(
         $this->getDateTo(),
-        new DateTimeZone('GMT-12'),
+        new DateTimeZone('Pacific/Midway'),
         'Y-m-d 23:59:59',
         '-1 day',
         $zone));
 
     return $this;
   }
 
 
   public function removeViewerTimezone(PhabricatorUser $viewer) {
     if (!$this->appliedViewer) {
       throw new Exception(pht('Viewer timezone is not applied!'));
     }
 
     if ($viewer->getPHID() != $this->appliedViewer->getPHID()) {
       throw new Exception(pht('Removed viewer must match applied viewer!'));
     }
 
     $this->appliedViewer = null;
 
     if (!$this->getIsAllDay()) {
       return $this;
     }
 
     $zone = $viewer->getTimeZone();
 
     $this->setDateFrom(
       $this->getDateEpochForTimeZone(
         $this->getDateFrom(),
         $zone,
         'Y-m-d',
         null,
-        new DateTimeZone('GMT+12')));
+        new DateTimeZone('Pacific/Kiritimati')));
 
     $this->setDateTo(
       $this->getDateEpochForTimeZone(
         $this->getDateTo(),
         $zone,
         'Y-m-d',
         '+1 day',
-        new DateTimeZone('GMT-12')));
+        new DateTimeZone('Pacific/Midway')));
 
     return $this;
   }
 
   private function getDateEpochForTimeZone(
     $epoch,
     $src_zone,
     $format,
     $adjust,
     $dst_zone) {
 
     $src = new DateTime('@'.$epoch);
     $src->setTimeZone($src_zone);
 
     if (strlen($adjust)) {
       $adjust = ' '.$adjust;
     }
 
     $dst = new DateTime($src->format($format).$adjust, $dst_zone);
     return $dst->format('U');
   }
 
   public function save() {
     if ($this->appliedViewer) {
       throw new Exception(
         pht(
           'Can not save event with viewer timezone still applied!'));
     }
 
     if (!$this->mailKey) {
       $this->mailKey = Filesystem::readRandomCharacters(20);
     }
 
     return parent::save();
   }
 
   private static $statusTexts = array(
     self::STATUS_AWAY => 'away',
     self::STATUS_SPORADIC => 'sporadic',
   );
 
   public function setTextStatus($status) {
     $statuses = array_flip(self::$statusTexts);
     return $this->setStatus($statuses[$status]);
   }
 
   public function getTextStatus() {
     return self::$statusTexts[$this->status];
   }
 
   public function getStatusOptions() {
     return array(
       self::STATUS_AWAY     => pht('Away'),
       self::STATUS_SPORADIC => pht('Sporadic'),
     );
   }
 
   public function getHumanStatus() {
     $options = $this->getStatusOptions();
     return $options[$this->status];
   }
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_COLUMN_SCHEMA => array(
         'name' => 'text',
         'dateFrom' => 'epoch',
         'dateTo' => 'epoch',
         'status' => 'uint32',
         'description' => 'text',
         'isCancelled' => 'bool',
         'isAllDay' => 'bool',
         'mailKey' => 'bytes20',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'userPHID_dateFrom' => array(
           'columns' => array('userPHID', 'dateTo'),
         ),
       ),
     ) + parent::getConfiguration();
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(
       PhabricatorCalendarEventPHIDType::TYPECONST);
   }
 
   public function getMonogram() {
     return 'E'.$this->getID();
   }
 
   public function getTerseSummary(PhabricatorUser $viewer) {
     $until = phabricator_date($this->dateTo, $viewer);
     if ($this->status == PhabricatorCalendarEvent::STATUS_SPORADIC) {
       return pht('Sporadic until %s', $until);
     } else {
       return pht('Away until %s', $until);
     }
   }
 
   public static function getNameForStatus($value) {
     switch ($value) {
       case self::STATUS_AWAY:
         return pht('Away');
       case self::STATUS_SPORADIC:
         return pht('Sporadic');
       default:
         return pht('Unknown');
     }
   }
 
   public function loadCurrentStatuses($user_phids) {
     if (!$user_phids) {
       return array();
     }
 
     $statuses = $this->loadAllWhere(
       'userPHID IN (%Ls) AND UNIX_TIMESTAMP() BETWEEN dateFrom AND dateTo',
       $user_phids);
 
     return mpull($statuses, null, 'getUserPHID');
   }
 
   public function getInvitees() {
     return $this->assertAttached($this->invitees);
   }
 
   public function attachInvitees(array $invitees) {
     $this->invitees = $invitees;
     return $this;
   }
 
   public function getUserInviteStatus($phid) {
     $invitees = $this->getInvitees();
     $invitees = mpull($invitees, null, 'getInviteePHID');
 
     $invited = idx($invitees, $phid);
     if (!$invited) {
       return PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
     }
     $invited = $invited->getStatus();
     return $invited;
   }
 
   public function getIsUserAttending($phid) {
     $attending_status = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
 
     $old_status = $this->getUserInviteStatus($phid);
     $is_attending = ($old_status == $attending_status);
 
     return $is_attending;
   }
 
 /* -(  Markup Interface  )--------------------------------------------------- */
 
 
   /**
    * @task markup
    */
   public function getMarkupFieldKey($field) {
     $hash = PhabricatorHash::digest($this->getMarkupText($field));
     $id = $this->getID();
     return "calendar:T{$id}:{$field}:{$hash}";
   }
 
 
   /**
    * @task markup
    */
   public function getMarkupText($field) {
     return $this->getDescription();
   }
 
 
   /**
    * @task markup
    */
   public function newMarkupEngine($field) {
     return PhabricatorMarkupEngine::newCalendarMarkupEngine();
   }
 
 
   /**
    * @task markup
    */
   public function didMarkupText(
     $field,
     $output,
     PhutilMarkupEngine $engine) {
     return $output;
   }
 
 
   /**
    * @task markup
    */
   public function shouldUseMarkupCache($field) {
     return (bool)$this->getID();
   }
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     switch ($capability) {
       case PhabricatorPolicyCapability::CAN_VIEW:
         return $this->getViewPolicy();
       case PhabricatorPolicyCapability::CAN_EDIT:
         return $this->getEditPolicy();
     }
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     // The owner of a task can always view and edit it.
     $user_phid = $this->getUserPHID();
     if ($user_phid) {
       $viewer_phid = $viewer->getPHID();
       if ($viewer_phid == $user_phid) {
         return true;
       }
     }
 
     if ($capability == PhabricatorPolicyCapability::CAN_VIEW) {
       $status = $this->getUserInviteStatus($viewer->getPHID());
       if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED ||
         $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING ||
         $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED) {
         return true;
       }
     }
 
     return false;
   }
 
   public function describeAutomaticCapability($capability) {
     return pht('The owner of an event can always view and edit it,
       and invitees can always view it.');
   }
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
 
   public function getApplicationTransactionEditor() {
     return new PhabricatorCalendarEventEditor();
   }
 
   public function getApplicationTransactionObject() {
     return $this;
   }
 
   public function getApplicationTransactionTemplate() {
     return new PhabricatorCalendarEventTransaction();
   }
 
   public function willRenderTimeline(
     PhabricatorApplicationTransactionView $timeline,
     AphrontRequest $request) {
 
     return $timeline;
   }
 
 /* -(  PhabricatorSubscribableInterface  )----------------------------------- */
 
 
   public function isAutomaticallySubscribed($phid) {
     return ($phid == $this->getUserPHID());
   }
 
   public function shouldShowSubscribersProperty() {
     return true;
   }
 
   public function shouldAllowSubscription($phid) {
     return true;
   }
 
 /* -(  PhabricatorTokenReceiverInterface  )---------------------------------- */
 
 
   public function getUsersToNotifyOfTokenGiven() {
     return array($this->getUserPHID());
   }
 
 /* -(  PhabricatorDestructibleInterface  )----------------------------------- */
 
 
   public function destroyObjectPermanently(
     PhabricatorDestructionEngine $engine) {
 
     $this->openTransaction();
     $this->delete();
     $this->saveTransaction();
   }
 }