Samsung Galaxy · One UI

Samsung alarm not going off?

Fifteen fixes for Galaxy phones, most likely first. Tick each one as you check it, then test your alarm in 2 minutes.

Checked against Samsung's guides for One UI 8.5 on 4 and 5 November 2026. Menu names can differ a little on older phones.

Clock and phone settings

Start here. Fixes that open Clock are for Samsung's own Clock app.

  1. Turn on the alarm's sound, and turn it up

    Alarm volume isn't on the phone's Volume screen. Each alarm has its own, at the bottom of the Ringtone screen under Alarm sound. The switch beside Alarm sound must be on too.

    1. Clock
    2. Alarm
    3. your alarm
    4. Alarm sound
    5. Ringtone

    Sources: Samsung (1, 2)

  2. Check Clock's volume setting

    Since One UI 7, Clock can use one volume for every alarm or a different one for each. Check which is on, then set the volume.

    1. Clock
    3. Settings
    4. Volume

    Source: Samsung

  3. Turn off Silence alarms when system sound is off

    With it on, Mute or Vibrate silences your alarms too. Some phones word it as alarms and timers vibrating only.

    1. Clock
    3. Settings

    Sources: Samsung (1, 2)

  4. Let alarms through Do not disturb

    Do not disturb has its own Alarms switch. It's normally on, but check it.

    1. Settings
    2. Notifications
    3. Do not disturb
    4. Alarms and sounds
    5. Alarms

    Sources: Samsung, Verizon

  5. Check your Sleep mode

    Sleep mode can turn on Do not disturb with its own options. Samsung doesn't say if alarms get through, so check, then test.

    1. Settings
    2. Modes and Routines
    3. Modes
    4. Sleep

    Sources: Samsung, Samsung's Galaxy S26 guide

  6. Check the days, and AM or PM

    A one-time alarm switches off after it rings. On One UI 8 and later, switching off an alarm group turns off every alarm in it.

    1. Clock
    2. Alarm
    3. your alarm

    Sources: Samsung, SamMobile

  7. Turn off Mute all sounds

    It silences every sound on the phone, alarms included.

    1. Settings
    2. Accessibility
    3. Hearing enhancements
    4. Mute all sounds

    Sources: Samsung (1, 2)

  8. Disconnect earbuds at night

    Samsung doesn't say where the alarm plays with earbuds connected, and one owner says it skipped the speaker. Turn Bluetooth off at night, or test with them connected but out of your ears.

    1. Settings
    2. Connections
    3. Bluetooth

    Sources: Samsung, Samsung Community

  9. Turn off Mute with gestures

    It's usually on. Covering the screen or turning the phone face down while the alarm rings mutes it, and it rings again after the snooze time.

    1. Settings
    2. Advanced features
    3. Motions and gestures
    4. Mute with gestures

    Source: Samsung

  10. Restart if it only beeps

    Some Galaxy owners say their alarm only beeped, with a note that it can't play during a call, when no call was on. A restart fixed it until their next call. Samsung hasn't said why.

    Source: Samsung Community

  11. Turn off automatic restarts

    Some owners say alarms stayed quiet after an overnight restart until they unlocked the phone. Turn off Restart when needed and Restart on schedule. Samsung says a restart can still happen with both off.

    1. Settings
    2. Device care
    3. Auto optimization
    4. Auto restart

    Sources: Samsung (1, 2), Samsung Community

Alarm apps

Alarmy, Sleep as Android, Bed Quitter and others

Menus look different on your phone? Older versions are covered on dontkillmyapp.com.

  1. Set the app's battery to Unrestricted

    Stops your phone holding the app back to save battery.

    1. Settings
    2. Apps
    3. your alarm app
    4. Battery
    5. Unrestricted

    Sources: SamMobile, Samsung Community

  2. Add it to Never sleeping apps

    Keeps the app awake, even if you haven't opened it for days.

    1. Settings
    2. Battery
    3. Background usage limits
    4. Never sleeping apps

    Sources: Samsung, Samsung's developer docs

  3. Check Alarms and reminders

    If it's off, the app's alarms are cancelled. Some alarm apps get it automatically and may not be listed. If yours is listed, make sure it's on. If it isn't listed, run the 2-minute test. Moved to a new phone? Check again.

    1. Settings
    2. Apps
    4. Special access
    5. Alarms and reminders

    Sources: Android's docs (1, 2), Samsung Community

  4. Check the app's own sound

    Alarm apps have their own sound and volume settings. Open the app and check the alarm you set.

    Sources: Android's docs (1, 2)

5 fixes are for other problems.

Test it in 2 minutes

Set an alarm for

2minutes from now

Pick a time two minutes from now.

  1. 1Set it in the alarm app you wake up with.
  2. 2Turn on what you'll have on tonight, like Do Not Disturb or silent.
  3. 3Lock the phone and put it face down.

Known bugs right now

Bugs that stop or quiet the phone's own alarm, whether they're fixed, and what to do. A lone forum post never makes this list.

  • During a call, the alarm only beeps

    By design

    If a call is on when the alarm goes off, Samsung's Clock shows a pop-up and beeps until you tap Dismiss, even on Vibrate or Silent. A beep may not wake you.

    Which versions
    One UI 6.1.1 and later. Samsung says so for the Galaxy Z Flip6 and Z Fold6.
    Fixed yet?
    Samsung says this is how it works.
    What to do
    Hang up before you sleep.

    Source: Samsung · Checked 5 November 2026

We found no Samsung notice or press report this year of a Clock alarm that doesn't ring or makes no sound on One UI 8 or 8.5. Owners do report problems, so run the 2-minute test.

Known bugs on other phones

Every fix and its sources, as open data

Samsung fixes

An alarm that checks these for you.

Bed Quitter checks your Samsung's battery settings, walks you through the rest, then keeps ringing until you get out of bed and move.

Out December 1 on Android and iPhone. One email at launch, nothing else. Privacy

A woman stretching her arms overhead beside a sunny window, up and out of bed.

Why Samsung phones stop alarm apps

To save battery, One UI can put a background app to sleep when you haven't used it for about 3 days. A sleeping app's alarms are limited. After about 16 days it goes into deep sleep and can't run in the background at all.

Adding an alarm app to Never sleeping apps takes it off those limits, and setting its battery to Unrestricted stops your phone holding it back. Samsung doesn't say whether its own Clock app is ever put to sleep, so check that Clock isn't in Sleeping or Deep sleeping apps either.

Questions people ask

Why is my Samsung alarm not making a sound?

Check three things first: the switch beside Alarm sound on the alarm itself, the Clock setting Silence alarms when system sound is off (on some phones, alarms and timers vibrating only), and Mute all sounds in Accessibility. Any one of them can keep an alarm quiet.

Will my Samsung alarm go off on silent or vibrate?

Yes, unless one Clock setting is on. Mute and Vibrate don't stop alarms by themselves. But with Silence alarms when system sound is off switched on, they silence alarms too. Some phones word it as alarms and timers vibrating only. Find it in Clock, More options (⋮), Settings, and turn it off.

Why does my alarm app work on other phones but not my Samsung?

Samsung adds its own battery limits on top of Android's, like putting unused apps to sleep. Set the app's battery to Unrestricted, add it to Never sleeping apps, and check Alarms and reminders.

Do I need to do this again after an update?

Run the 2-minute test after each One UI update. Updates add and move settings, like the alarm groups in One UI 8, so a quick test is the surest check.

Other phones