six o'clock
`` Hallo , youngster ! '' said Mr. Parsons cheerfully . `` You 'll have to get up earlier than this if you 're going to strike a gold mine . Why , it must be close on to six o'clock . '' `` I was awfully tired last night , and the wolves kept me awake , '' said Tom . `` I do n't see how anybody can sleep with such a din in his ears . '' `` The time may come when you will be glad to hear them .