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Elections in Canada Wiki page
Historically, the Prime Minister could ask the Governor General to call an election at virtually any time, although each Parliament has a maximum term of five years after the return of the writs of the last election under section 4 of the Canadian Charter of Rights and Freedoms. The same provision applies in all provinces and territories, although some provinces have local laws that require elections to be even earlier. However, in 2007 Parliament passed an act fixing federal election dates every four years, unless the government loses the confidence of the House of Commons. Nevertheless, this law is largely symbolic[citation needed] as it does not curtail the power of the Prime Minister to request the dissolution of Parliament at any time, as demonstrated by the same Conservative government's call for elections one year prior to the legislated date without having lost a confidence motion.