CREATE TABLE table_204_621 (id DECIMAL, "no." DECIMAL, "date" TEXT, "tournament" TEXT, "winning score" TEXT, "margin\ of victory" TEXT, "runner ( s ) -up" TEXT)

don january won the tucson open invitational twice , in 1960 and which year ?
SELECT "date" FROM table_204_621 WHERE "tournament" = 'tucson open invitational' AND "date" <> 1960
SELECT "date" FROM "table_204_621" WHERE "date" <> 1960 AND "tournament" = 'tucson open invitational'