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iPhone and iPad alarms not going off or going off late

I own both an iPhone 8 and an iPad Mini. I need to wake up at night sometimes, such as around 2am, but very frequently the alarms do not go off. Especially the phone - although I’ve set it 50% louder than the iPad and with vibration, it very often doesn’t go off. Also, I’ve had some alarms that go off late - usually 9 or 15 minutes later than time set. This is terrible, any way to prevent this?

iPhone 8

Posted on Aug 26, 2019 9:17 PM

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Question marked as Top-ranking reply

Posted on Aug 26, 2019 10:02 PM

Practice on --> How to set and manage alarms on your iPhone - Apple Support



4 replies

Oct 4, 2019 10:15 AM in response to chestershen

I have an Ipad mini2 with IOS 12.3.1. The last two days my clock alarm did not sound. Volume and sound effects volumes were both at medium. The mute switch was not active, and did not have do-not-disturb set. Also bluetooth was off so it was not sending to sound to another device. Tried a countdown alarm and it also made no sound. Finally tried re-setting the IPad, which worked. But how could you ever know that this is needed in advance? I now have to question the reliability of using this as an alarm clock. I guess I can test the countdown alarm every night but hopefully there is another fix.

Oct 29, 2019 6:43 AM in response to chestershen

I also had a similar issue. I had the iPhone 6 and had this issue, then switched to the iPhone 11 in September and had the issue again. I was really hoping going to the iPhone 11 would fix this, but it looks like the only thing that fixes is the battery life..


The alarm shows on the home screen and has the option to snooze or stop, but the sound does not go off. I use a song from my iTunes for my alarm. Everything was set properly, the same as the post before mine (mute was not active, not in do-not-disturb) the alarm setting was correct, the sound was on and loud enough per the Sound and Haptics setting.


I changed the alarm time up a couple minutes twice and the sound was still not working each try. I went into the alarm settings and tried selecting the alarm sound being used and nothing happened, when I selected another song available on this main screen it then started playing the new tune, when I selected my original song again it finally started playing and now the alarm works again.


This has only happened to me twice so I can't recreate the issue, but it is really scary to put my waking up in time for work in the hands of the iPhone anymore, looks like I'll have to by a cheap alarm clock...

iPhone and iPad alarms not going off or going off late

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