CREATE TABLE table_51314 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Partner" TEXT, "Opponents" TEXT, "Score" TEXT)

Name the date for clay surface and score of 0 6, 0 6
SELECT "Date" FROM table_51314 WHERE "Surface" = 'clay' AND "Score" = '0–6, 0–6'
SELECT "Date" FROM "table_51314" WHERE "Score" = '0–6, 0–6' AND "Surface" = 'clay'