Different countries have different rules. US stock market regulation rules don't apply in Canada or other countries.
Most US brokerages clear money same day if you got a margin account with $2,000+ and are allowed 3 day trades within 5 business day period. The 3 day wait or T+2 rule is usually for cash accounts only.
Unfortunately I don't think Canadian brokerages allow US citizens to open accounts mainly due to tax complexity. It would be a nice work around for US citizens that want to day trade but don't have $25,000+ minimum to satisfy pattern day trading rules.
There are options though. suretrader.com which is based out of Bahamas and run by same people that run US based brokerage speedtrader allows day trading with $500+ and gives 6x margin for listed stocks. Some of their trading fees are a little steep. 10,000 share max for $4.95 so trading really cheap stocks not really an option. And some routing fees add up too if you over trade but there are definitely viable options for people with small accounts.