The member may remember that the former practice used to be that the first three members had 40 minutes, notwithstanding that the Prime Minister or the leader of the official opposition had unlimited time. The practice has been changed. Each member in the first round, including the government party and the four opposition parties, has 20 minutes plus 10 minutes of questions and comments. These are the new rules that have been put in place.
In the House of Commons on October 31st, 2003. See this statement in context.