midnight
From the Casino came the sound of orchestral music . Throngs moved about on the verandas ; couples or little groups strolled through the gardens . Inside , the play had hardly begun . Gambling does not reach its frantic height until midnight . `` We shall feel out of place , '' mused Dave aloud . `` Dan , we really should have known better than to come here in anything but evening dress . You see that every one else is in full regalia . ''