I can't give you a categoric number, but we do have a policy in place in the Canadian Forces that if an individual is required for operations, we have the option of extending. Normally for most people who request a voluntary release, we try to get them out within thirty days. If that's not possible because they are required for an operational commitment, then they are required for an operational commitment, and they signed on for that.
On October 17th, 2006. See this statement in context.