Since I live in Spain, where most people smoke (like I do), there are no set rules about breaks. I am salaried at a multinational company and I am not sure how it would be in countries with less smokers, but here, anytime I want to smoke, I just take a 5-10 minute break. Probably 7-8 times a day. Add lunch to that, which is usually between 1:30-3:00pm, and of course some other breaks where we just go to our snack room and chat, I think I probably spend more than 1 hour not working except lunch. I work from 9am till 7:30pm though.