I'd say my high lasts anywhere from an hour to two and a half hours depending on the quality of the weed. I smoke a lot and have done so for about ten years. I have arranged to get five grams each of White Widow and Blueberry for 4/20. The guy I go to seems pretty legit and he hasn't lied thus far, so I'm hopeful. I'd like to blaze with friends but everyone already has plans. I have the day off so I've decided to have a personal stoner filmfest and will lay in a supply of the best munchies.