about nine o'clock
`` It has lasted us some three and a half hours . It is now close on eight o'clock . We shall get through the night comfortably . I should expect the end about nine o'clock to-morrow morning . We shall see one sunrise , which shall be all our own . '' He turned on his second tube and opened for half a minute the fanlight over the door . Then as the air became perceptibly better , but our own symptoms more acute , he closed it once again .