Open Settings and find the Clock app alarms

To change an alarm sound on your iPhone, open the Settings app, then tap Sounds & Haptics. Scroll down and tap Alarm. The sound you choose here becomes the default for all new alarms you create. If you want to change the sound for an alarm you've already set, you'll need to edit that specific alarm in the Clock app instead — the Settings menu only controls what plays when you create a fresh one.

The difference matters because you might want different alarms to sound different ways. Your 6 a.m. alarm might need to be loud and jarring, while a midday reminder could be gentler. Changing the default in Settings affects only future alarms, not ones already on your phone.

Key Takeaways

  • The default alarm sound is set in Settings > Sounds & Haptics > Alarm, and applies only to new alarms you create after that point.
  • To change the sound of an alarm you've already set, open the Clock app, tap Edit, select the alarm, and tap Sound.
  • iPhone comes with about a dozen built-in alarm sounds, ranging from gentle chimes to loud electronic tones.
  • You cannot use songs from your music library as alarm sounds on iPhone — only the built-in options are available.

Change the sound for an alarm you already have

Open the Clock app on your home screen. Tap the Alarm tab at the bottom. Find the alarm you want to change and tap Edit in the top left corner. Tap the alarm you're editing, then tap Sound. A list of available alarm sounds appears — tap the one you want to hear, and it will play a preview. Tap Back to return to the alarm details, then tap Save in the top right.

Each alarm can have its own sound, so you can set up multiple alarms with different tones. This is useful if you have a work alarm and a personal alarm, or if you want some alarms to be louder than others. The preview plays at full volume, so you'll hear exactly what the alarm will sound like when it goes off.

What alarm sounds are available on iPhone

iPhone includes about 12 to 15 built-in alarm sounds depending on your iOS version. Common options include Alarm, Beacon, Bells, Chime, Digital, Echo, Fanfare, Glass, Harp, Marimba, Mechanical, Neon, Radar, Sci-Fi, and Strum. Each one plays a short loop when the alarm triggers. You can preview any sound before you save it by tapping it in the Sound menu.

The loudest and most attention-grabbing sounds are usually Alarm, Beacon, and Radar. The gentlest options tend to be Chime, Glass, and Harp. If you're a light sleeper, pick one of the louder tones. If you're easily startled or share a bed, a gentler sound might work better for you.

Why you can't use your own music as an alarm

iPhone does not let you set songs from your music library, podcasts, or voice memos as alarm sounds. You're limited to the built-in tones that come with the Clock app. This is a deliberate design choice by Apple — the built-in sounds are optimized to wake you reliably, while music files can behave unpredictably when used as alarms (they might not loop properly, might not play at full volume, or might stop if you receive a call).

If you want a custom alarm sound, your options are limited. Some people use a timer with a specific song instead, though timers work differently than alarms and won't repeat on future days. Others create a shortcut using the Shortcuts app that plays a specific song at a set time, though this requires more setup and doesn't work if your phone is locked or in Do Not Disturb mode.

How to silence an alarm without turning it off

When an alarm goes off, you can tap Snooze to silence it for 9 minutes, or tap the X to dismiss it entirely. Swiping up from the bottom of the lock screen also snoozes the alarm. If you want the alarm to stop making noise but stay active for tomorrow, tap the X. If you want it to go off again in a few minutes, tap Snooze.

You can also change how long the snooze lasts. Open the Clock app, tap Edit, select the alarm, and tap the snooze duration. The default is 9 minutes, but you can change it to 1, 5, 10, or 20 minutes. This setting applies to all your alarms, not individual ones.

Troubleshooting: alarm sound not working

If your alarm goes off silently or you can't hear it, check your iPhone's volume. The alarm uses the Ringer and Alerts volume, not the media volume. Press the volume up button on the side of your phone to increase it. You can also go to Settings > Sounds & Haptics and drag the Ringer and Alerts slider to the right.

If your phone is in Do Not Disturb mode, the alarm will still sound — alarms override Do Not Disturb. However, if your phone is completely silent (the mute switch on the side is flipped to silent), the alarm will vibrate but not make noise. Flip the switch back to unmute your phone if you want to hear the alarm sound. Check that you've actually saved the alarm after changing its sound — if you tap Sound but don't tap Save, your changes won't stick.

Frequently Asked Questions

Can I use a song from Apple Music as my alarm sound?

No. iPhone alarms only work with the built-in sounds that come with the Clock app. You cannot use songs from Apple Music, your music library, or any other audio file as an alarm sound. This is a limitation of how iOS handles alarms for reliability reasons.

Will my alarm still go off if my phone is on silent?

Your alarm will vibrate, but it won't make a sound if the mute switch on the side of your iPhone is flipped to silent. To hear the alarm sound, flip the switch back to unmute. Alarms do override Do Not Disturb mode, so they will sound even if that feature is on.

How do I change the snooze time?

Open the Clock app, tap Edit, select the alarm you want to adjust, and tap the snooze duration shown below the alarm time. You can choose 1, 5, 9, 10, or 20 minutes. This setting applies to all your alarms at once — you can't set different snooze times for different alarms.

What's the difference between changing the alarm in Settings versus the Clock app?

Settings > Sounds & Haptics > Alarm sets the default sound for any new alarms you create from that point forward. The Clock app lets you edit individual alarms you've already set and change their sounds one at a time. If you want to change an existing alarm's sound, use the Clock app.