The thing is Canada is a large piece of land. Where do you plan on going? In Whistler? In Whistler the skiing ends at 4 pm. The park is awesome, the mountain is awesome, and the town is even more awesome. There are many many many many resorts in Canada, most of the ones on the east coast will have night skiing, with some average park and the mountains are usually shitty. I would reccomend going to Whistler, if you go at Whistler I swear that by 4pm you will be exhausted.