Nine o'clock
He seemed more amused than annoyed . ` Say , what time do you think I usually go to bed ? ' ` I know what time you go here . Nine o'clock . ' As if to support my words , the door opened , and Mrs Attwell , the matron , entered . ` I think it 's time he came to bed , Mr Burns . ' ` Just what I was saying , Mrs Attwell . '