Turn off ringer for 15 minutes. Or 20. Or 30 minutes.

Re. forgetting to turn your ringer back on after a meeting. We need an app for meetings that are not necessarily on our calendar. AutoSilent app and using the Do Not Disturb setting are too cumbersome.

Say someone stops you in a hallway with an important question. You want to tap on an app and set your phone's ringer to "silent for 15 minutes," then focus on the person in front of you without the distraction of having to remember to turn your ringer back on.

Is there such an app?