four o'clock
Toward morning he grew more wakeful . The whistling of the fog-signal , which had now become almost constant , vanquished at length his inclination toward slumber . He found his watch , but it was too dark to tell the time . He raised himself up in his berth , and , pulling open the window blind , was able with difficulty to make out that it was almost four o'clock . Outside , he saw a bank of fog , as impenetrable to the eye as a wall . He pulled the blind to , with an impatient sigh . `` This confounded fog , '' he thought , `` will make us late , and I sha 'n' t have time to see those pictures at the Academy . ''