CREATE TABLE table_12429 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Partner" TEXT, "Opponents" TEXT, "Score" TEXT)

What Date has Opponents of sun shengnan han xinyun?
SELECT "Date" FROM table_12429 WHERE "Opponents" = 'sun shengnan han xinyun'
SELECT "Date" FROM "table_12429" WHERE "Opponents" = 'sun shengnan han xinyun'