user: ### NOW ANSWER:
Question: What day was the circuit Isle of Man?
Columns: ['Name', 'Circuit', 'Date', 'Winning driver', 'Winning constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Targa Florio', 'Madonie', '2 April', 'Giulio Masetti', 'Mercedes', 'Report']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Circuit" = 'Isle of Man';