Alarm ringing out of nowhere when I open my mac's lid?

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Level 1

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Alarm ringing out of nowhere when I open my mac's lid?

On my mac I have an alarm ringing out of nowhere. It started when I opened the lid just now. There is no notification from the clock app so I can't stop it. I tried turning off my alarms one by one to see if it's one of them but the sound was still playing. I tried quitting the clock app but the sound is still playing. This issue has occurred a few times in the past and I want to settle it for good. If an alarm is ringing out of nowhere, how do I stop it?

MacBook Air 13″, macOS 15.7

Posted on Sep 15, 2026 10:03 PM

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Answer 1

Top-ranking reply

WheelieNick

Level 9

65,746 points

Sep 17, 2026 3:28 AM in response to DrYeet

To stop a ghost or hidden alarm sound immediately when the Clock app or notification fails to show up, force quit the Notification Center via Activity Monitor.

Open Activity Monitor (press Cmd + Space, type "Activity Monitor", and hit Enter).

Type notification into the search bar in the top-right corner.

Select NotificationCenter from the list.

Click the Stop (X) button in the top toolbar.

Choose Force Quit. This restarts the notification process and kills the looping audio instantly.

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