three o'clock
Before Albert could speak the captain answered his own question . `` I 'll tell you what it is , '' he went on . `` It 's one of the latest samples of your smartness as a business man . I presume likely you know that Laban worked here in this office until three o'clock this mornin ' , did n't you ? '' Albert did not know it . Mr. Keeler had told him nothing of the sort . `` Why , no , '' he replied .