two o’clock
`` Let 's go up stairs and tell Mrs. Blyth about it directly . '' `` Stop a minute , Zack , '' interposed Mr. Blyth . `` What time ought you to be back in the City ? it 's close on two o'clock now . '' `` Oh ! three o'clock will do . I 've got lots of time , yet -- I can walk it in half-an-hour . ''