nine o’clock
_ Does _ it do you any good ? '' `` I am afraid it has not , as yet , '' confessed Jenkins . `` And never will , so long as you give your body and brains no rest . Out you go by nine o'clock , in all weathers , ill or well , and there you are at your business till evening ; stooping yourself double over the writing , dancing abroad on errands , wearing out your lungs with answers to callers ! There 's no sense in it . '' `` But , my dear , the office must be attended to , '' said Jenkins , with much deference . `` There 's no ` must ' in the case , as far as you are concerned .