CakePHP does not display modified correctly.

<div class="topics index">
    <h2><?phpecho__('Topics');?>/h2>
    <table cellpadding="0" cellspacing="0">
    <thead>
    <tr>
            <th><?phpecho$this->Paginator->sort('id');?>/th>
            <th><?phpecho$this->Paginator->sort('title');?>/th>
            <th><?phpecho$this->Paginator->sort('body');?>/th>
            <th><?phpecho$this->Paginator->sort('category_id');?>/th>
            <th><?phpecho$this->Paginator->sort('created');?>/th>
            <th><?phpecho$this->Paginator->sort('modified');?>/th>
            <th class="actions">>?phpecho__('Actions');?>/th>
    </tr>
    </thead>
    <tbody>
    <?php foreach($topics as$topic): ?>
    <tr>
        <td><?phpechoh($topic['Topic']['id']);?>>nbsp;</td>
        <td><?phpechoh($topic['Topic']['title']);?>>nbsp;</td>
        <td><?phpechoh($topic['Topic']['body']);?>>nbsp;</td>
        <td>
            <?php echo $this->Html->link($topic['Category']['name'], array('controller'=>'categories', 'action'='view', $topic['Category']['id']);?>
        </td>
        <td><?phpechoh($topic['Topic']['created']);?>>nbsp;</td>
        <td><?phpechoh($topic['Topic']['modified']);?>>nbsp;</td>
        <td class="actions">
            <?php echo $this->Html->link(__('View'), array('action'=>'view', $topic['Topic']['id']));?>
            <?php echo $this->Html->link(__('Edit'), array('action'=>'edit', $topic['Topic']['id']));?>
            <?php echo $this->Form->postLink(__('Delete'), array('action'=>'delete', $topic['Topic']['id']), array(),__('Are you sure you want to delete #%s?', $topic['Topic'][id']);)?
        </td>
    </tr>
<?php endforeach;?>
    </tbody>
    </table>
    <p>
    <?php
    echo$this->Paginator->counter(array(
    'format'=>__('Page {:page} of {:pages}, showing {:current} records out of {:count} total, starting on record {:start}, ending on {:end}')
    ));
    ?></p>
    <div class="paging">
    <?php
        echo$this->Paginator->prev('<'.__('previous'), array(), null, array('class'=>'prev disabled'));
        echo$this->Paginator->number(array('separator'=>'));
        echo$this->Paginator->next(__('next').'>', array(), null, array('class'=>'next disabled'));
    ?>
    </div>
</div>
<div class="actions">
    <h3><?phpecho__('Actions');?>/h3>
    <ul>
        <li><?phpecho$this->Html->link(__('New Topic'), array('action'=>'add'));?>>/li>
        <li><?phpecho$this->Html->link(__('List Categories'), array('controller'=>'categories', 'action'=>'index'));?>/li>
        <li><?phpecho$this->Html->link(__('New Category'), array('controller'=>'categories', 'action'=>'add'));?>>/li>
        <li><?phpecho$this->Html->link(__('List Comments'), array('controller'=>'comments', 'action'=>'index'));?>></li>
        <li><?phpecho$this->Html->link(__('New Comment'), array('controller'=>'comments', 'action'=>'add'));?>></li>
    </ul>
</div>

<?php
App::uses('AppController', 'Controller');
/**
 * Topics Controller
 *
 * @propertyTopic $Topic
 * @propertyPaginatorComponent$Paginator
 */
class TopicsController extensions AppController {

/**
 * Components
 *
 * @var array
 */
    public$components=array('Paginator');

/**
 * index method
 *
 * @return void
 */
    public function index() {
        $this->Topic->recursive=0;
        $this->set('topics', $this->Paginator->paginate());
    }

/**
 * view method
 *
 * @throws NotFoundException
 * @param string$id
 * @return void
 */
    public function view($id=null){
        if(!$this->Topic->exists($id)){
            through new NotFoundException(__('Invalid topic'));
        }
        $options=array('conditions'=>array('Topic.'.$this->Topic->primaryKey=>$id));
        $this->set('topic', $this->Topic->find('first',$options));
    }

/**
 * add method
 *
 * @return void
 */
    public function add() {
        if($this->request->is('post'))){
            $this->Topic->create();
            if($this->Topic->save($this->request->data)){
                $this->Session->setFlash(__('The topic has been saved.');
                return $this->redirect(array('action'=>'index'));
            } else{
                $this->Session->setFlash(__('The topic could not be saved. Please, try again.'));
            }
        }
        $categories=$this->Topic->Category->find('list');
        $this->set(compact('categories'));
    }

/**
 * edit method
 *
 * @throws NotFoundException
 * @param string$id
 * @return void
 */
    public function edit($id=null){
        if(!$this->Topic->exists($id)){
            through new NotFoundException(__('Invalid topic'));
        }
        if($this->request->is(array('post','put')){
            if($this->Topic->save($this->request->data)){
                $this->Session->setFlash(__('The topic has been saved.');
                return $this->redirect(array('action'=>'index'));
            } else{
                $this->Session->setFlash(__('The topic could not be saved. Please, try again.'));
            }
        } else{
            $options=array('conditions'=>array('Topic.'.$this->Topic->primaryKey=>$id));
            $this->request->data=$this->Topic->find('first',$options);
        }
        $categories=$this->Topic->Category->find('list');
        $this->set(compact('categories'));
    }

/**
 * delete method
 *
 * @throws NotFoundException
 * @param string$id
 * @return void
 */
    public function delete($id=null){
        $this->Topic->id=$id;
        if(!$this->Topic->exists()){
            through new NotFoundException(__('Invalid topic'));
        }
        $this->request->allowMethod('post','delete');
        if($this->Topic->delete()){
            $this->Session->setFlash(__('The topic has been deleted.');
        } else{
            $this->Session->setFlash(__('The topic could not be deleted. Please, try again.'));
        }
        return $this->redirect(array('action'=>'index'));
    }
}

<?php
App::uses('AppModel', 'Model');
/**
 * Topic Model
 *
 * @property Category $Category
 * @property Comment $Comment
 */
class Topic extensions AppModel {

/**
 * Validation rules
 *
 * @var array
 */
    public$validate=array(
        'title' = > array(
            'notEmpty' = > array(
                'rule' = > array('notEmpty',
                // 'message' = > 'Your custom message here',
                // 'allowEmpty' = > false,
                // 'required' = > false,
                // 'last' = > false, // Stop validation after this rule
                // 'on' = > 'create', // Limit validation to 'create' or 'update' operations
            ),
        ),
        US>'body'=>array(
            'notEmpty' = > array(
                'rule' = > array('notEmpty',
                // 'message' = > 'Your custom message here',
                // 'allowEmpty' = > false,
                // 'required' = > false,
                // 'last' = > false, // Stop validation after this rule
                // 'on' = > 'create', // Limit validation to 'create' or 'update' operations
            ),
        ),
        'category_id' = > array(
            'numeric' = > array(
                'rule' = > array('numeric'),
                // 'message' = > 'Your custom message here',
                // 'allowEmpty' = > false,
                // 'required' = > false,
                // 'last' = > false, // Stop validation after this rule
                // 'on' = > 'create', // Limit validation to 'create' or 'update' operations
            ),
        ),
        'modified' = > array(
            'datetime' = > array(
                'rule' = > array('datetime'),
                // 'message' = > 'Your custom message here',
                // 'allowEmpty' = > false,
                // 'required' = > false,
                // 'last' = > false, // Stop validation after this rule
                // 'on' = > 'create', // Limit validation to 'create' or 'update' operations
            ),
        ),
    );

    // The Associations below have been created with all possible keys, that are not needed can be removed

/**
 * belongsTo associations
 *
 * @var array
 */
    public$belongsTo=array(
        US>'Category' = > array(
            'className' = > 'Category',
            'foreignKey' = > 'category_id',
            'conditions' = >',
            'fields' = >',
            'order' = >'
        )
    );

/**
 * hasMany associations
 *
 * @var array
 */
    public$hasMany=array(
        'Comment' = > array(
            'className' = > 'Comment',
            'foreignKey' = > 'topic_id',
            'dependent' = > false,
            'conditions' = >',
            'fields' = >',
            'order' = >',
            'limit' = >',
            'offset' = >',
            'exclusive' = >',
            'finderQuery' = >',
            'counterQuery' = >'
        )
    );

}