Simplified Rules of Order
Limit or Extend Limits of Debate
A motion to limit debate changes the normal rules of debate. It could, for example, limit the time of the whole debate (such as, "I move that debate on this motion be limited to 15 minutes"), or it might limit the time taken by each speaker ("I move that debate on this motion be limited to two minutes per speaker").
A motion to extend debate permits greater participation and time than usual.
A motion to limit or extend the time of debate (on one matter or for the entire meeting) may not interrupt a speaker, must be seconded, is not debatable, can be amended, can be reconsidered, and requires a two-thirds majority vote.