public function getActiveTimers()
    {
        $result = $this->getActiveUsers( );
        if ( $result->isSuccess() ) {
            $data = array();
            foreach ($result->data as $user) {
                $subResult = $this->getUserEntries( $user->id, Range::today( $this->_timeZone ) );
                if ( $subResult->isSuccess() ) {
                    foreach ($subResult->data as $entry) {
                        if ($entry->timer_started_at != null || $entry->timer_started_at != "") {
                            $data[$user->id] = $entry;
                            break;
                        }
                    }
                }
            }
            $result->data = $data;
        }

        return $result;
    }