Random question. I went there in june visiting family. During the summer those bastards have daylight for almost 18 hours, plus they have more lax laws on weed. If I could move over there and grow I would!!
I've been to England a couple of times myself... From what I gather, mj seeds are legal to have as a "novelty item", however, cultivation, other posession and use of MJ can get ya nicked fast. As far as the days being longer... I didn't notice anything except the usually crappy UK weather.