Takashi-kun is planning to buy 4 apples costing 70 yen each and 8 oranges costing 20 yen each, but he was then approached by his next-door neighbour, Mrs. Tanaka, who said "Out on an errand? How reliable". Please answer at what time is Takashi-kun going home today. However, do note that Mrs. Tanaka hasn't been in contact with her husband for half a year.