CREATE TABLE table_56242 ("Race" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Race Winner" TEXT, "Constructor" TEXT, "Report" TEXT)

What was the date when the location was Zandvoort?
SELECT "Date" FROM table_56242 WHERE "Location" = 'zandvoort'
SELECT "Date" FROM "table_56242" WHERE "Location" = 'zandvoort'