CREATE TABLE table_1072 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Location" TEXT, "Time  (  ET  ) " TEXT, "TV" TEXT, "Result" TEXT, "Record" TEXT)

How many days were the Kansas City Chiefs the opposing team?
SELECT COUNT("Date") FROM table_1072 WHERE "Opponent" = 'Kansas City Chiefs'
SELECT COUNT("Date") FROM "table_1072" WHERE "Opponent" = 'Kansas City Chiefs'