eight o'clock
`` Have you any reason for this opinion aside from the conversation you allege that you heard ? '' `` I do n't know as I have . '' `` At what hour did you reach my office last evening ? '' `` I do n't know , I guess it must ` a ' been after eight o'clock . '' `` Was it dark ? '' `` It was jest dark . '' `` Was there a light in the office when you came in ? ''