seven o'clock
`` No , my lord , '' said Johnny . `` Look you here , now . I shall be up for the Cattle-show before Christmas . You must dine with me at my hotel , on the twenty-second of December , Pawkins 's , in Jermyn Street ; seven o'clock , sharp . Mind you do not forget , now . Put it down in your pocket-book when you get home . Good-by , doctor ; good-by .