CREATE TABLE table_32820 ("Week" TEXT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Kickoff" TEXT, "Game site" TEXT, "Record" TEXT)

What date has a Game site of bye?
SELECT "Date" FROM table_32820 WHERE "Game site" = 'bye'
SELECT "Date" FROM "table_32820" WHERE "Game site" = 'bye'