six o'clock
One evening , two weeks before the close of the season , Ivy put on her hat and announced that she was going downtown to mail her letters . `` Mail your letters in the daytime , '' growled Papa Keller . `` I did n't have time to-day , '' answered Ivy . `` It was a thirteen inning game , and it lasted until six o'clock . '' It was then that Papa Keller banged the heavy fist of decision down on the library table . `` This thing 's got to stop ! '' he thundered .