Why is my alarm not snoozing/ working on IOS 11

Similar situation here. Recently, when I hit snooze, the alarm hasn't been going off again. It happened this morning, and when I finally woke up (an hour late) and looked at my phone, the snooze countdown timer started counting down from 9 minutes as if I had just hit snooze. It was nice to sleep an extra hour but not so nice to be an hour late for work.

I have been having this issue as well. Just this morning my alarm went off just fine the first time. I clicked snooze and then IT NEVER WENT OFF AGAIN. I woke up an hour and a half later and saw your above screen on my phone but it was not playing anything, it was just silent. I clicked Stop and it went away...why is it not playing the sound after I click Snooze the first time??

I’ve noticed that the Snooze count down is running in negative value; it doesn’t ring when the time ends but continues to count as minus (- 00:01). Then it rings when the screen turn on, after having pressed the home button.

Yes, I had this issue, too. It’s infuriating! Also, several times my alarm has not made a sound until I click the home button. Then it goes off as though it was the correct time, when in fact it should’ve gone off a long time before. For example, this morning it was set for 5:45am, but the alarm didn’t sound until I clicked the home button to check the time at 5:48am. This has caused me to oversleep more than once now! How do I prevent this?

Hey there! I posted my concern as a question, and Apple Support replied here: https://discussions.apple.com/thread/8223148?answerId=32813685022#32813685022&ac_cid=op123456#32813685

I haven’t gotten around to trying out their troubleshooting tips yet, partly because I’m hesitant to update my iOS given the recent news about it slowing down your phone. Please let me know if you try it & it works for you.

Reality is, it is a stop timer with IRQ to trigger an alarm. They have set the IRQ for absolute 0 instead of =< 0 (you know, a very basic failsafe in coding math).

Its not the only place they have "dumb" logic.

Example, I have 1000 unread emails in one inbox, yet my overall unread count is 1002...

Whoever is checking the logic behind these functions needs to be thumped...

I haven't installed any new apps on my phone for a very long time, nor am I doing anything different with my phone that hasn't already been performed so I can safely rule out any app interaction or hanging issues. All the tips provided by the Apple community member is essentially just restarting your phone and hoping for the best rather than finding the bug and squashing it.

I'd also like to point out (and read into this what you will) that I have not been able to sustain an iPhone for longer than 3 years past manufacture date (note NOT PURCHASE DATE) without these "bugs" popping up. If I had time I'd reverse engineer the kernel...

Snooze stopped working for me too. Why did I pay 1000k for a phone if it’s f##king buggy. Wake up apple!!!!!