I want to add UIlable that represent the time when post created 
I tried 3 different methods without any success
PS: Am using PFQueryTableViewController 
Update :
 var dateFormatter = NSDateFormatter()
        dateFormatter.dateFormat = "MM-dd-yyyy HH:mm"
        var useDate = dateFormatter.stringFromDate
        cell.dateLabel.text = useDate
After above Code I get this error > can't assign of type NSDate -> string to type String? the error is points to cell.dateLabel.text = useDate
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject ? ) - > PFTableViewCell ? 
{
  let cell = tableView.dequeueReusableCellWithIdentifier("cellImg", forIndexPath: indexPath) as!MoreCell
  //Trial 1 
  cell.dateLabel.text = object ? .objectForKey(createdAt)
  //Trial 2
  cell.dateLabel.text = object ? .objectForKey("createdAt") as ? String
  //Trial 3
  cell.dateLabel.text = object ? .createdAt
 //Trial 4
  cell.dateLabel.text = object?.updatedAt >> Error Can't assign value of type NSDate to type string?
}