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iOS 17 iPhone Alarm Turns Off with StandBy Mode

When StandBy Mode is turned on and active while the phone is in the landscape position, if the alarm goes off and the phone is disturbed (taken off the charger/ slightly bumped off the charger, or taken out of StandBy Mode the alarm will actually completely turn off.


The reason I hope this is just a setting I can disable without disabling STandBy mode is I like to check the time throughout the night, however, when i wake up in the morning I'd rather press a physical button as I've accidentally pressed the wrong one. But now every time I barely touch my phone it will stop the alarm and not snooze it.

iPhone 12 Pro Max

Posted on Sep 29, 2023 8:21 AM

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Question marked as Best reply

Posted on Oct 3, 2023 4:20 AM

I thought I was crazy. I love the alarm clock look but I have been late since installing the latest update. I’m turning this off so I can be on time. I thought I was accidentally turning it off until I made sure I pressed snooze but like everyone else there was no snooze

75 replies

Oct 3, 2023 5:42 AM in response to SlimSim14

I ran some tests on this issue because I was having it too. I found that background apps, air pods, music didn’t affect the alarms in standby mode.. but notifications definitely did. If I have a text on the screen in standby mode then the alarm won’t sound. That’s the only way I’ve been able to replicate a failed alarm so far.

Oct 3, 2023 6:31 AM in response to gdpasteur

gdpasteur wrote:

I ran some tests on this issue because I was having it too. I found that background apps, air pods, music didn’t affect the alarms in standby mode.. but notifications definitely did. If I have a text on the screen in standby mode then the alarm won’t sound. That’s the only way I’ve been able to replicate a failed alarm so far.

You should definitely pass that information on to Apple:


Product Feedback - Apple

Jan 14, 2024 1:32 AM in response to SlimSim14

Has anyone from Apple commented on the snooze issue on iOS 17 - updated to iOS 17.2.1 and issue is still there.

  • Turns off if phone picked up
  • Sometimes turns off after one ring (and not touched)
  • Sometimes turns off all subsequent alarms.
  • Sometimes works (if alarm screen is open).


started new job a week ago and have to use an old-school alarm clock as I don’t trust it at all - travelling soon and very worried about over sleeping with jet lag.

Apple -please fix the basics please

Oct 3, 2023 6:19 AM in response to gdpasteur

Oh that’s interesting. I have a DND setting for sleep but my girlfriend has the permission to come through silently and she did message me after I had gone to bed. That would explain it. Decided to set an alarm on my iPad for 15 minutes later than my iPhone so I can safely experiment as well. Thanks for the taking the time to test and report back!

Oct 3, 2023 9:28 AM in response to SlimSim14

Same here, first night with a 3 in 1 magnetic charger for iphone, airpod, watch. Set the alarm at 6 (I use silent alarm, just vibration) and leaved the phone horizontal and standby was activated, I wake up to bathoom 3am without touching the phone and I noticed that screen was black by the time I came back and seems to detected my movement and started the standby mode again with clock in night mode. Alarm didnt started at 6

Oct 7, 2023 4:19 AM in response to SlimSim14

Last week I thought I put my alarm on snooze while on Standby. I overslept twice, not quite understanding. My IPhone 14 is plugged in and the phone cover has a small ‘kickstand’ which allows it to stand in portrait or landscape mode. This morning the alarm went off and I made sure I tapped Sleep. When it was supposed to ring the second time..I saw the options Sleep or Off (whatever the other choice is) appears from the top and then it went away..the alarm no longer in Sleep Mode..

Oct 16, 2023 3:04 PM in response to Livwild3

Livwild3 wrote:

I set around 15 alarms to go off in the morning to wake me up. (I’m awful at making myself get up). So I give myself time to snooze. Ever since I’ve updated the newest one, anytime I snooze, the other Alarms aren’t going off or something?

It has been true for years that, if you snooze an alarm and the snooze overlaps with a subsequent alarm, the subsequent alarm will not fire. So, either set your alarms to be more than nine minutes apart (and only snooze once) or diable this snooze function and just rely on the multiple alarms.

Oct 17, 2023 12:02 AM in response to SlimSim14

I have had this happen once. Iphone Xs (my 15 isn’t here yet) in landscape for the first time overnight. It was the first time I used standby mode overnight. Missed getting up by 30 mins, woke to find a prompt on the phone that indicates the alarm is going off. But its actually completely silent.


Completely beyond me how this gets through a beta to public release.


Disabled Standby and put the phone back in portrait overnight. Worked. Getting some trust back. I won’t be using standby until I have seen positive news on this one, shocking stuff, alarms are basic.



iOS 17 iPhone Alarm Turns Off with StandBy Mode

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