CREATE TABLE table_40224 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What is Date, when Tournament is Alfred Dunhill Championship 1?
SELECT "Date" FROM table_40224 WHERE "Tournament" = 'alfred dunhill championship 1'
SELECT "Date" FROM "table_40224" WHERE "Tournament" = 'alfred dunhill championship 1'