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The snooze feature lets you temporarily delay your alarm when you need a few more minutes of sleep. Simple Alarm Clock offers flexible snooze options including a configurable default duration and the ability to snooze to a specific time.

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Default snooze behavior

When you tap the snooze button on an alarm:
  1. The alarm sound and vibration stop immediately
  2. A notification appears showing when the alarm will ring again
  3. The alarm will ring again after the configured snooze duration (10 minutes by default)
  4. You can snooze multiple times if needed
Snooze can be disabled entirely by setting the snooze duration to -1 in settings. When disabled, only the dismiss button will appear on the alarm screen.

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Configuring snooze

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Global snooze duration

Preference key: snooze_duration
Default value: 10 minutes
1

Open Settings

Navigate to the Settings screen from the main menu
2

Find snooze duration

Look for the “Snooze duration” option
3

Select duration

Choose your preferred snooze duration:
  • -1 to disable snooze
  • Any positive integer for the number of minutes
Setting snooze duration to -1 will hide the snooze button on the alarm screen, preventing accidental snoozing.

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Snooze to specific time

Instead of using the default snooze duration, you can snooze to a specific time:
  1. When an alarm is ringing, long-press the snooze button
  2. A time picker appears
  3. Select the exact time you want the alarm to ring again
  4. The alarm will ring at that specific time
When you open the snooze time picker:
  • The alarm is muted for the first 10 seconds while you pick a time
  • This prevents the alarm from playing loudly while you’re selecting a time
  • The muting happens automatically when the picker opens
Source: AlarmAlertFullScreen.kt:168-172

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Snooze with pre-alarm

Pre-alarm and snooze interact in specific ways:

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Snoozing a pre-alarm

  • Regular snooze: The pre-alarm snoozes and will ring again after the snooze duration
  • Snooze to time: The alarm transitions to the regular snoozed state (skipping pre-alarm snoozed state)

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Snoozing the main alarm

When you snooze a main alarm after a pre-alarm has already played:
  • The next snooze will be a regular alarm (not a pre-alarm)
  • Pre-alarm only plays before the originally scheduled time
If a pre-alarm is snoozed, the main alarm will still fire at its originally scheduled time if you don’t acknowledge the snoozed pre-alarm.

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Snooze notifications

When an alarm is snoozed:

Notification appears

Shows the alarm label and the time it will ring again

Reschedule option

Tap the notification to reschedule the snooze time

Cancel option

Dismiss the notification to cancel the snoozed alarm

Time display

Shows formatted time string: “Alarm snoozed until [time]“

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Multiple snoozes

You can snooze an alarm as many times as you want:
  1. Each snooze resets the timer
  2. The alarm state remains “snoozed” between snooze activations
  3. Snoozing a snoozed alarm simply reschedules it
  4. You can mix regular snooze and snooze-to-time
Internally, snoozed alarms maintain their state:
  • The alarm transitions to SnoozedState when snoozed (source: AlarmCore.kt:551)
  • Re-snoozing simply updates the next fire time
  • The alarm remains enabled but in a snoozed state
  • Snooze survives app restarts and reboots

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Snooze and repeating alarms

For repeating alarms:
  • Snoozing delays only the current occurrence
  • After dismissing (not snoozing), the alarm reschedules for the next day/week
  • Snoozed alarms can be rescheduled while in snoozed state

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Technical details

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Snooze calculation

The next snooze time is calculated as: 
val snoozeMinutes = snoozeDuration.blockingFirst()
nextTime.add(Calendar.MINUTE, snoozeMinutes)
Source: AlarmCore.kt:554-557

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Snooze events

  • SnoozedEvent: Fired when an alarm is snoozed (source: AlertService.kt:49)
  • CancelSnoozedEvent: Fired when a snoozed alarm is cancelled (source: AlertService.kt:59)

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Intent actions

  • ACTION_SNOOZE: Snooze the alarm (source: Intents.kt:30)
  • ACTION_CANCEL_SNOOZE: Cancel a snoozed alarm
Developers can trigger snooze programmatically using alarm.snooze() or alarm.snooze(hour, minute) for time-specific snoozing.

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