UK Parliament — House of Commons

All committees, other than committees of the whole House, shall have leave to sit at any time on any day on which the House sits, but may not otherwise sit during any adjournment of the House, without the leave of the House, and such leave shall not be moved for without notice.

That on Wednesdays and other Morning Sittings of the House, all Committees shall have leave to sit, except while the House is at Prayers, during the sitting, and notwithstanding any adjournment of the House.