If your “iPhone alarm not going off” has been the reason you’ve been late for work, school or an important meeting, you’re not alone. Many times users will wake up to silence, and will swear that the alarm was set. More often than not, the fix is not even drastic – it is usually in a hidden setting, a small glitch in the software, or a simple error in your mind when you created the alarm. This guide covers why your alarm is not working and how to set an iPhone alarm to be louder and how to keep it from not working again.
Common reasons: why is Apple alarm not going off?
Before we dive in fixing the iPhone alarm, it is good to know of the things that would commonly cause the alarm to malfunction.



- Silent or Do Not Disturb modes: If the silent or Do Not Disturb mode is enabled on the side switch, many of the alerts will become quiet.
- Low or muted alarm volume: The Ringer and Alerts volume can be low even if the ringtone volume seems loud, which leads to the iPhone alarm not making sound loud enough to wake you up.
- Attention Aware Features lowering volume: On Face ID-enabled iPhones, this feature means the alarm will quiet down if it thinks you’re already looking at the screen.
- Bluetooth or headphones routing the sound: The alarm might be playing through a distant Bluetooth speaker or forgotten earbuds.
- Software bugs or old iOS: A bug in iOS or within the Clock app can cause alarm stopped working on iPhone unexpectedly.
Use a parental control app to protect your kids’ from online threats.
Practical & quick fix on issues: iPhone alarm not going off
If you are just trying to get your alarm working again quickly then the first step is to go through a short list.
- Confirm that the alarm has been set properly (time, AM/ PM, and repeat).
- Check to make sure the side mute switch is off and the Ringer and Alerts volume is up.
- Switch off Do Not Disturb and Sleep Focus if they are on.
- If the alarm sounded, but it sounded too quiet, adjust the tone and volume as indicated in the next section.
Once you’ve done this basic check, you can go deeper after the precise reason your iPhone alarm is not going off.
Solution 1: Allow time-sensitive alerts: check alarm sound & volume settings
Apple has kept “alerts” separate from “ringtones,” and thus you can have a loud ringtone but a quiet alarm. To make your iPhone alarm louder and make sure it plays out, follow these steps:
- Go to Settings > Sounds & Haptics.
- You need to drag the Ringer and Alerts volume slider to at least 80-100%.
Then, have a look at the alarm sound itself:
- Open Clock > tap Alarm.
- Tap Edit, then select the alarm that you want to change.
- Tap on Sound, select one of the louder tones, played at Ringtones, or select a song, under Songs.
This combo of adjusting the alarm volume usually fixes the “iPhone alarm making sound very quietly” problem.
Solution 2: Disable Silent Mode or Do Not Disturb
Two of the most common causes of the “iPhone alarm not going off when face down” or in the middle of the night” is Silent Mode and Do Not Disturb.
Silent Mode:
- Check the little switch on the side of your iPhone. If it is Orange, the phone is in Silent Mode. Turn it over so that the orange is not visible.
- Then you should go to Settings > Sounds & Haptics > Enable or Disable Change with Button according to your preferences.
Do Not Disturb:
- Open control center, and therein search for the crescent moon icon. Tap if highlighted to turn off Do Not Disturb.
- Or go to Settings – Focus – Do Not Disturb and disable or un-schedule the feature.
With both of these off it is far less likely that your alarm will be silenced or delayed, even when the phone is face down or in a quiet environment.
Solution 3: update iOS or reset the Clock app
Sometimes iPhone alarm not going off since the last update is a result of a bug and not something that is misconfigured. Luckily, an iOS update addresses these issues.
- Open up Settings> General> Software Update.
- If there is an update, then download it and install it.
If the alarm still fails:
- Go to Settings – General – Reset – Reset All Settings (this retains the data but E resets preferences which may have an impact on the Clock app).
- Alternatively, just delete/recreate the alarm in the Clock app to determine if alarm stopped working on iPhone was due to a corrupted alarm entry.
After some sort of an update, have a recheck that Attention aware features, and Do Not Disturb are not interfering.
Solution 4: Restart your iPhone
A simple restart can relieve the iPhone alarm not going off since it is mostly a temporary glitch.
Once the iPhone is booting set a test alarm for a few minutes in the future and make sure that it rings at full volume.
Solution 5: Disable Low Power Mode and ensure sufficient battery
Low Power Mode will sometimes delay or mute the background alerts including alarms even though Apple says that alarms should still work in Low Power Mode. To avoid any risk:
Also:
- If your phone is below 20-30%, make sure to charge it above 30 percent to avoid alarm problems.
- Avoid leaving the iPhone on a very hot or cold surface overnight because it can cause the iPhone to power off unexpectedly when the temperature is very high or low.
Solution 6: check for background app refresh issues
Background app refresh has little to do with the Clock app, but if there is a lot of background activity, sometimes glitches or battery drain can occur, which could affect the timeliness of alerts.
If you experience issues with the alarm not working after gaming or streaming, disabling background refresh for unnecessary apps can help solve the problem.
Solution 7: turn off Bluetooth
If the alarm on your phone is not working when you are using a Bluetooth device, it might be due to the fact that the sound is connected to a speaker or headphones in another room.
Test the alarm again; it should now sound through the built-in speaker of your iPhone.
Solution 8: Disable ‘Attention Aware Features’
On Face ID-enabled iPhones, Attention Aware Features will be able to reduce the volume of the alarm, if it believes you’re already awake and looking at the screen, quietly. This is a major cause of the iPhone alarm not making a sound, even though it’s technically “ringing.”
To disable it:
- Go to Settings – Face ID & Attention (or Settings – Accessibility – Face ID & Attention, depending on iOS version).
- Disabled Attention Aware Features.
After this, your alarm ought to have full set volume and won’t dim down when you look at the phone.
Specific iPhone alarm problem & how to solve?
Beyond the basic “alarm not going off,” there are a number of annoying bugs that plague iPhone users. The good thing is that most of these issues can be resolved by making a few small changes.
Why is my alarm so quiet on iPhone?
If you have an alarm and it goes off, but it is too soft, then there are two main culprits.
- First, the Ringer and Alerts volume is simply too low (even if the ringtone appears to be loud).
- Second, Attention Aware Features may be calming the alarm down when you are sleeping or staring at the screen.
To fix this:
- In Settings > Sounds & Haptics > Maximize Ringer and Alerts volume.
- Pick a more aggressive tone, on Clock > Alarm > Edit > Sound.
- As described above Turn off Attention Aware Features.
Why alarm going off late on iPhone?
If your alarm went off minutes after the set time, then it is not normally a hardware problem. Possible causes include:
- A bug or an improper alarm. Delete the alarm and recreate the alarm.
- The phone going into the Low Power Mode for a while or having a lot of background heavy applications running can make notifications take a long time.
As a check, try to make a completely new alarm for a short-term test and see if it hits exactly the right time.
Alarm doesn’t stop ringing
If you get your alarm, but you can’t make it stop, then that is a problem with touch or a UI glitch.
- Keep pressing the Power or Volume button in order to snooze or dismiss.
- If the screen is not responding, then force restart the iPhone as mentioned earlier.
If this occurs repeatedly, delete and recreate the alarm in the Clock app, or put an update on the iOS.
Family-friendly alarm tools for screen time management
Parents can creatively use iPhone alarms to manage screen time for kids, after fixing minor issues with iPhone alarm not going off. These alarms can help:
- Establish morning and evening times like ‘Homework time,’ ‘Bedtime,’ or ‘Screen-off time’ as an alarm to prompt kids towards a schedule.
- Combine the alarms with Screen Time limits and have devices lock after a certain time after bedtime.
For more rigid control, applications such as FlashGet Kids or apps of similar nature can sync with your child’s iPhone and apply parental controls. These include setting screen time limits, blocking apps at night, and alerting you when kids break time limits. These tools augment your existing routine, which is alarm-based, but does not replace it.
Final thought
The majority of cases of “iPhone alarm not going off” are not serious, and you can fix them with a few quick tweaks. The important ones being: Making sure the alarm is set properly, time-sensitive alarms, turning off Silent Mode and Do Not Disturb, turning off Attention Aware Features and keeping iOS up-to-date.
If you are ever in the dilemma of how to change alarm sound on iPhone or how to make an alarm on iPhone have more volume, the built-in Clock and Sounds and Haptics settings take care of everything in a few taps. In this way, by following these steps, you can greatly reduce the risk of having your alarm stop working on iPhone on an important day.
FAQs
Yes. If Do Not Disturb or Silent Mode is on, then the phone may silence or reduce the volume of the alarm, although it still technically goes off.
Open the Clock > Alarm > Edit, tap the alarm, tap Sound and then choose a new tone/song from the list.
No. If the iPhone has been completely powered off, the alarm cannot go off. Make sure the phone has a sufficient battery and is not shut down.
Yes. The alarm still sounds during a call, but you may need to end or put the call on hold in order to silence it completely.
Common reasons are low Ringer and Alerts, Attention Aware Features reducing volume or sound going to a Bluetooth device. To rectify this, turn off Bluetooth, disable Attention Aware Features and increase Ringer and Alerts volume.

