CREATE TABLE table_35844 ("Event Circuit" TEXT, "City / State" TEXT, "Date" TEXT, "Format" TEXT, "Winner" TEXT, "Team" TEXT)

what is the date of barbagallo raceway?
SELECT "Date" FROM table_35844 WHERE "Event Circuit" = 'barbagallo raceway'
SELECT "Date" FROM "table_35844" WHERE "Event Circuit" = 'barbagallo raceway'