CREATE TABLE table_79658 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in final" TEXT, "Score" TEXT, "Prize Money" TEXT)

What is the date of the match on clay with score of 6-3 2-6 6-4?
SELECT "Date" FROM table_79658 WHERE "Surface" = 'clay' AND "Score" = '6-3 2-6 6-4'
SELECT "Date" FROM "table_79658" WHERE "Score" = '6-3 2-6 6-4' AND "Surface" = 'clay'