OnePlus: Silence Alarms Automatically After a Few Minutes

The OnePlus Clock app includes a setting called Silence after that controls how long an alarm keeps ringing before it mutes itself, even if nobody touches the phone. Without a limit, an alarm continues indefinitely, which becomes a problem in shared bedrooms, hotel rooms, or homes with thin walls.

You find the option here: Open the Clock app ➔ Open the Settings ➔ Tap on Silence after ➔ Choose an option.

Available durations are 1 minute, 5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, and Never. A short timer suits light sleepers or households where the noise bothers others quickly. A longer timer or Never fits heavy sleepers who need sustained ringing to actually wake up.

This setting applies globally to every alarm created in the Clock app, not to a single alarm entry. If you pick a short duration and still do not wake up, the alarm stops sounding on its own, which means you can oversleep without noticing anything went wrong. Choosing Never avoids that risk but brings back the original problem of an alarm that never stops until dismissed manually.