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_29442 ( "Episode" text, "Date" text, "Official ITV rating (millions)" text, "Weekly rank" real, "Share (%)" text, "Official ITV HD rating (millions)" text, "Total ITV viewers (millions)" text )

### Question ###
What date was the show's weekly ranking 12?

### Accurate SQL ###

SELECT "Date" FROM table_29442 WHERE "Weekly rank" = '12'