When Android 5.0 introduced the new Read More
convoluted detailed notification and volume settings, it did one thing that annoyed a lot of users: it removed the option and the possibility of having a true silent mode, where the phone wouldn't ring or vibrate, but the notifications would still trigger the LED notification light, and the alarms would ring normally. You had your choice of "None," which didn't blink the LED nor sound the alarm, or "Priority," which still let some things through but required a tedious setup.
File this one in the long list of small but nonetheless significant Android 5.1 improvements. In Lollipop, when you try changing the phone's volume, you get 3 different modes: None, Priority, and All. For better or worse, it's still the case in Android 5.1 with one minor addition: alarms are now integrated as a deadline option.
Left: 5.0 no alarm option. Middle & Right: 5.1 alarm option for None and Priority modes.
On Android 5.0, if you pick no interruptions or only priority ones, you can set an end time when your device will go back to showing all notifications. Read More