You could give us something more to go on with your question. If you look in the shop there are different hour glasses that will help you do the. You can work on your alchemy Giant's Strength (Lv. )Each upgrade increases your construction speed by 10%. Then up to 10 friend can click your job giving you up to 10 mins off your building time. If you get 10 friends to click on one build then you also accomplish a quest. I hope one of these answers your question.