what happens at a quiet hour?
How to Use Quiet Hours in Windows 10 Mobile. You all must be using Cortana on your Windows 10 Mobile, Windows Phone 8.1 and PC. Cortana can do plethora of things like telling you jokes, finding a cheaper restaurant, sing you a song. However, along with all this, Cortana also comes with a very nice feature, called Quiet Hours. Quiet hours on Windows 10 allows you to get rid of unwanted calls and messages during a certain time period. When itâs on, any phone calls you get will go straight to voicemail, and all notifications will be silent (unless youâve told Cortana youâd like to hear from the people you have in your breakthrough list).