Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
what is the date when the format is cd (limited edition steel-box) from united kingdom?

### Inputs:
table_name: table, columns: ['Country', 'Date', 'Label', 'Format', 'Catalogue No.']

### Response:
SELECT Date FROM table WHERE Format = cd (limited edition steel-box) AND Country = united kingdom