I know it's a silly question but i'm curios about this quiet hour features and i want to use it too i couldnt find it on my own.So this features only works in Cortana ? if its not could you guys show me the way to use it.İf it's really work only with Cortana its a shame for MS because the only US can use the Cortana but nothing for the rest of the world ? İt seems the MS thinks we bought this phones for free.such a shame.