UK Parliament — House of Commons

No question shall be taken more than one hour after the House sits, except questions which have not appeared on the order paper but which are in the Speaker's opinion of an urgent character and relate either to matters of public importance or to the arrangement of business.

No Questions shall be taken after five minutes before Three of the clock, except Questions which have not been answered in consequence of the absence of the Minister to whom they are addressed, and Questions which have not appeared on the Paper, but which are of an urgent character, and relate either to matters of public importance or to the arrangement of business.