CREATE TABLE table_57646 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

On what day did a home team score 8.18 (66)?
SELECT "Date" FROM table_57646 WHERE "Home team score" = '8.18 (66)'
SELECT "Date" FROM "table_57646" WHERE "Home team score" = '8.18 (66)'