CREATE TABLE table_16692 ("Rd." FLOAT, "Grand Prix" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Driver" TEXT, "Constructor" TEXT, "Report" TEXT)

What day was the grand prix in jerez?
SELECT "Date" FROM table_16692 WHERE "Location" = 'Jerez'
SELECT "Date" FROM "table_16692" WHERE "Location" = 'Jerez'