twelve o'clock
I 'll explain it all to father in the morning . Perhaps he can help us out . '' `` Gee whiz ! almost twelve o'clock , '' exclaimed Hiram Nelson , looking up at the clock from the dining-room table in Paul Perkins ' house . The chamber was strewn with text books on model aeroplane construction and littered with figures and plans of the boys ' own devising . `` How time flies when you 're on a subject that interests you . '' `` Yes , it 's a good thing it 's vacation time , '' agreed Paul .