The Standing Orders of the House of Commons do not establish any formal time limits for debates. The Speaker may, however, order a member who persists in making a tediously repetitive or irrelevant speech to stop speaking. The time set aside for debate on a particular motion is, however, often limited by informal agreements between the parties. Debate may also be restricted by the passage of "allocation of time motions", which are more commonly known as "guillotine motions". Alternatively, the house may put an immediate end to debate by passing a motion to invoke closure. The Speaker is allowed to deny the motion if she or he believes that it infringes upon the rights of the minority. Today, bills are scheduled according to a timetable motion, which the whole house agrees in advance, negating the use of a guillotine.