The nest learns how long it takes to heat your house so if you wake up at roughly the same time every day it will start heating the house 30 minutes before you

The nest learns how long it takes to heat your house so if you wake up at roughly the same time every day it will start heating the house 30 minutes before you wake up. e.g., you always wake up at 6am on mon-fri and it takes 30 mins to heat the house then it starts heating at 5:30am, but on saturday you sleep in until 9:30, and the sun has already raised your homes temp a few degrees and it only takes 25 then it starts it at 9:05am.