Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_17969 ( "Round" real, "Circuit" text, "Date" text, "Length" text, "Pole Position" text, "GT3 Winner" text, "GTC Winner" text )

### Question ###
what are all the date for gt3 winner oliver bryant matt harris

### Accurate SQL ###

SELECT "Date" FROM table_17969 WHERE "GT3 Winner" = 'Oliver Bryant Matt Harris'