CREATE TABLE table_11213 ("Week" CLOB, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Kickoff [a ]" CLOB, "Game site" CLOB, "Attendance" CLOB, "Record" CLOB)

When was the date that week 9 started?
SELECT "Date" FROM table_11213 WHERE "Week" = '9'
SELECT "Date" FROM "table_11213" WHERE "Week" = '9'