Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_27973624_1 (main_date VARCHAR, round VARCHAR)
### Question:
What is the main date when the round is third round qualifying?
### Answer:
SELECT main_date FROM table_27973624_1 WHERE round = "Third round Qualifying"