CREATE TABLE table_41657 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score" TEXT)

What date was the match on a hard surface with a score of 6 4, 2 6, 3 6?
SELECT "Date" FROM table_41657 WHERE "Surface" = 'hard' AND "Score" = '6–4, 2–6, 3–6'
SELECT "Date" FROM "table_41657" WHERE "Score" = '6–4, 2–6, 3–6' AND "Surface" = 'hard'