This may be the most important feature on any smartphone
Our phones make a lot of noise. They chirp. Beep. Vibrate. Sing. Howl. And if you're the popular type (or, worse, work with folks across many time zones), your phone can be worse than a newborn at 3 a.m. or a dog in a thunderstorm. Fortunately, smartphone manufacturers are finally baking in "Do Not Disturb" functions.
Here's how to use Do Not Disturb in Sense 6 on the HTC One M8.