CREATE TABLE table_4770 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

On what day is geelong the home team?
SELECT "Date" FROM table_4770 WHERE "Home team" = 'geelong'
SELECT "Date" FROM "table_4770" WHERE "Home team" = 'geelong'