nine o'clock
`` Nae doubt ; an ' they would see it was the wisest thing they could do . He would be careful o ' their health , an ' send them early to bed as weel as hae them up at eight sharp . Geniuses ' healths is always breakin ' doon because of late hours , as in the case o ' the lad wha used often to begin his immortal writin 's at twal o'clock at nicht , a thing ` at would ruin ony constitootion . But the superintendent would see as they had a tasty supper at nine o'clock -- something as agreed wi ' them . Then for half an hour they would quiet their brains readin ' oot aloud , time about , frae sic a book as the ` Pilgrim 's Progress , ' an ' the gas would be turned aff at ten precisely . '' `` When would you have them up in the morning ? '' `` At sax in summer an ' seven in winter .