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What to Check When Your Phone Alarm Doesn't Go Off

Tap a step to follow along in order.

  1. Check the mute switch

    Even with your phone's physical mute switch on, alarms generally still ring β€” but if certain volume settings are turned down, you might not hear it, so it's worth checking.

  2. Check the alarm volume

    In Settings β†’ Sound, make sure the ringtone and alert volume isn't turned down too low.

  3. Check Do Not Disturb exceptions

    If Do Not Disturb is on, check whether your alarm app is set as an exception.

  4. Check battery optimization settings (Android)

    On some Android phones, battery-saving features can shut down the alarm app in the background, so you may need to add it to the exception list.

  5. Why this is useful

    Checking these settings ahead of time helps you avoid the frustration of an alarm that doesn't go off before an important appointment or workday.

Don't miss an alarm on a day that matters

If you've ever set an alarm only to have it not ring and made you late, checking these settings in advance can give you peace of mind before an important appointment or the start of a workday.

Managing multiple alarms is worth learning too

Being able to turn several alarms on or off at once, or set which days of the week each one repeats on, makes it much easier to manage a busy schedule without juggling separate alarms manually.

Frequently Asked Questions

Will an alarm still ring if the phone is completely powered off?

Some newer iPhones can ring a scheduled alarm even when powered off, but this varies by Android model, so if you're not sure, it's safer to just leave the phone powered on.

Should I keep my alarm app updated to the latest version?

Yes β€” older app versions can have known bugs, so keeping both your system and your apps up to date is a good habit.