Hey Bertie if you post your latitude it can be worked out fairly easily.
Working out how long each plant takes to flower outside is another question altogether.
Mr Nice has a strain called Critical Haze that you can buy at the auctions and the breeder recommends this as a suitable outdoor plant for Spain, Canada, US and Australia. It is 25% haze, 25% Skunk, 50% Afghani.
You may need to put them in a Greenhouse to protect them from an early autumn but otherwise all good.