diff --git a/app/src/main/java/io/timelimit/android/integration/platform/PlatformIntegration.kt b/app/src/main/java/io/timelimit/android/integration/platform/PlatformIntegration.kt
index 1884ec9..efc5251 100644
--- a/app/src/main/java/io/timelimit/android/integration/platform/PlatformIntegration.kt
+++ b/app/src/main/java/io/timelimit/android/integration/platform/PlatformIntegration.kt
@@ -1,5 +1,5 @@
 /*
- * TimeLimit Copyright <C> 2019 - 2023 Jonas Lochmann
+ * TimeLimit Copyright <C> 2019 - 2024 Jonas Lochmann
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -56,6 +56,7 @@ abstract class PlatformIntegration(
     abstract fun setShowNotificationToRevokeTemporarilyAllowedApps(show: Boolean)
     abstract fun showRemoteResetNotification()
     abstract fun showTimeWarningNotification(title: String, text: String)
+    abstract fun showExtraTimeStartedNotification(categoryId: String, categoryTitle: String)
     // returns package names for which it was set
     abstract fun setSuspendedApps(packageNames: List<String>, suspend: Boolean): List<String>
     abstract fun stopSuspendingForAllApps()
diff --git a/app/src/main/java/io/timelimit/android/integration/platform/android/AndroidIntegration.kt b/app/src/main/java/io/timelimit/android/integration/platform/android/AndroidIntegration.kt
index a546450..7e40e5b 100644
--- a/app/src/main/java/io/timelimit/android/integration/platform/android/AndroidIntegration.kt
+++ b/app/src/main/java/io/timelimit/android/integration/platform/android/AndroidIntegration.kt
@@ -441,6 +441,26 @@ class AndroidIntegration(context: Context): PlatformIntegration(maximumProtectio
         )
     }
 
+    override fun showExtraTimeStartedNotification(categoryId: String, categoryTitle: String) {
+        NotificationChannels.createNotificationChannels(notificationManager, context)
+
+        notificationManager.notify(
+            categoryId,
+            NotificationIds.EXTRA_TIME_STARTED,
+            NotificationCompat.Builder(context, NotificationChannels.EXTRA_TIME_STARTED)
+                .setSmallIcon(R.drawable.ic_stat_timelapse)
+                .setContentTitle(context.getString(R.string.notification_extra_time_started))
+                .setContentText(categoryTitle)
+                .setWhen(System.currentTimeMillis())
+                .setShowWhen(true)
+                .setLocalOnly(true)
+                .setAutoCancel(false)
+                .setOngoing(false)
+                .setPriority(NotificationCompat.PRIORITY_HIGH)
+                .build()
+        )
+    }
+
     override fun disableDeviceAdmin() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             if (policyManager.isDeviceOwnerApp(context.packageName)) {
diff --git a/app/src/main/java/io/timelimit/android/integration/platform/android/Notification.kt b/app/src/main/java/io/timelimit/android/integration/platform/android/Notification.kt
index 6595b0a..f979373 100644
--- a/app/src/main/java/io/timelimit/android/integration/platform/android/Notification.kt
+++ b/app/src/main/java/io/timelimit/android/integration/platform/android/Notification.kt
@@ -1,5 +1,5 @@
 /*
- * TimeLimit Copyright <C> 2019 - 2022 Jonas Lochmann
+ * TimeLimit Copyright <C> 2019 - 2024 Jonas Lochmann
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,6 +34,7 @@ object NotificationIds {
     const val WORKER_REPORT_UNINSTALL = 8
     const val WORKER_SYNC_BACKGROUND = 9
     const val NEW_DEVICE = 10
+    const val EXTRA_TIME_STARTED = 11
 }
 
 object NotificationChannels {
@@ -47,6 +48,7 @@ object NotificationChannels {
     const val TEMP_ALLOWED_APP = "temporarily allowed App"
     const val APP_RESET = "app reset"
     const val NEW_DEVICE = "new device"
+    const val EXTRA_TIME_STARTED = "extra time started"
 
     private fun createAppStatusChannel(notificationManager: NotificationManager, context: Context) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@@ -214,6 +216,20 @@ object NotificationChannels {
         }
     }
 
+    private fun createExtraTimeStartedNotificationChannel(notificationManager: NotificationManager, context: Context) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            notificationManager.createNotificationChannel(
+                NotificationChannel(
+                    EXTRA_TIME_STARTED,
+                    context.getString(R.string.notification_channel_extra_time_started_title),
+                    NotificationManager.IMPORTANCE_HIGH
+                ).apply {
+                    description = context.getString(R.string.notification_channel_extra_time_started_description)
+                }
+            )
+        }
+    }
+
     fun createNotificationChannels(notificationManager: NotificationManager, context: Context) {
         createAppStatusChannel(notificationManager, context)
         createBlockedNotificationChannel(notificationManager, context)
@@ -225,6 +241,7 @@ object NotificationChannels {
         createTempAllowedAppChannel(notificationManager, context)
         createAppResetChannel(notificationManager, context)
         createNewDeviceChannel(notificationManager, context)
+        createExtraTimeStartedNotificationChannel(notificationManager, context)
     }
 }
 
diff --git a/app/src/main/java/io/timelimit/android/integration/platform/dummy/DummyIntegration.kt b/app/src/main/java/io/timelimit/android/integration/platform/dummy/DummyIntegration.kt
index 65cc4c2..4c86606 100644
--- a/app/src/main/java/io/timelimit/android/integration/platform/dummy/DummyIntegration.kt
+++ b/app/src/main/java/io/timelimit/android/integration/platform/dummy/DummyIntegration.kt
@@ -1,5 +1,5 @@
 /*
- * TimeLimit Copyright <C> 2019 - 2023 Jonas Lochmann
+ * TimeLimit Copyright <C> 2019 - 2024 Jonas Lochmann
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -153,6 +153,10 @@ class DummyIntegration(
         // nothing to do
     }
 
+    override fun showExtraTimeStartedNotification(categoryId: String, categoryTitle: String) {
+        // nothing to do
+    }
+
     override fun disableDeviceAdmin() {
         // nothing to do
     }
diff --git a/app/src/main/java/io/timelimit/android/logic/BackgroundTaskLogic.kt b/app/src/main/java/io/timelimit/android/logic/BackgroundTaskLogic.kt
index e209331..e8e07ed 100644
--- a/app/src/main/java/io/timelimit/android/logic/BackgroundTaskLogic.kt
+++ b/app/src/main/java/io/timelimit/android/logic/BackgroundTaskLogic.kt
@@ -1,5 +1,5 @@
 /*
- * TimeLimit Copyright <C> 2019 - 2023 Jonas Lochmann
+ * TimeLimit Copyright <C> 2019 - 2024 Jonas Lochmann
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -436,6 +436,9 @@ class BackgroundTaskLogic(val appLogic: AppLogic) {
                         val oldRemainingTime = nowRemaining.includingExtraTime - timeToSubtractForCategory
                         val newRemainingTime = oldRemainingTime - timeToSubtract
 
+                        val oldRemainingNonExtraTime = nowRemaining.default - timeToSubtractForCategory
+                        val newRemainingNonExtraTime = oldRemainingNonExtraTime - timeToSubtract
+
                         val commitedSessionDuration = handling.remainingSessionDuration
                         val oldSessionDuration = handling.remainingSessionDuration?.let { it - timeToSubtractForCategory }
 
@@ -476,6 +479,10 @@ class BackgroundTaskLogic(val appLogic: AppLogic) {
                             )
                         }
 
+                        if (oldRemainingNonExtraTime > 0 && newRemainingNonExtraTime <= 0) {
+                            appLogic.platformIntegration.showExtraTimeStartedNotification(categoryId, category.title)
+                        }
+
                         if (oldSessionDuration != null) {
                             val newSessionDuration = oldSessionDuration - timeToSubtract
 
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 32db0bc..881f9d4 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -1207,6 +1207,9 @@
     <string name="notification_channel_new_device_title">neue Geräte</string>
     <string name="notification_channel_new_device_description">Zeigt eine Benachrichtigung an, wenn TimeLimit mit Vernetzung verwendet wird und ein neues Gerät verknüpft wurde</string>
 
+    <string name="notification_channel_extra_time_started_title">Extrazeit beginnt</string>
+    <string name="notification_channel_extra_time_started_description">Informiert, wenn des reguläre Zeitkontingent verbraucht ist und nun Extrazeit verwendet wird</string>
+
     <string name="notification_filter_not_blocked_title">TimeLimit hat eine Benachrichtigung blockiert</string>
     <string name="notification_filter_blocking_failed_title">TimeLimit konnte eine Benachrichtigung nicht blockieren</string>
 
@@ -1222,6 +1225,8 @@
 
     <string name="notification_new_device_title">Gerät hinzugefügt</string>
 
+    <string name="notification_extra_time_started">Extrazeit beginnt</string>
+
     <string name="obsolete_message">Sie verwenden TimeLimit auf einer älteren Android-Version.
         Das kann funktionieren, aber es wird nicht empfohlen.
     </string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 38fbfbb..79a5e6b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1256,6 +1256,9 @@
     <string name="notification_channel_new_device_title">New Device</string>
     <string name="notification_channel_new_device_description">Shows a notification if the connected mode is used and a new device was linked</string>
 
+    <string name="notification_channel_extra_time_started_title">Extra time starts</string>
+    <string name="notification_channel_extra_time_started_description">Informs when the regular time contingent was consumed and the extra time starts</string>
+
     <string name="notification_filter_not_blocked_title">TimeLimit has blocked a notification</string>
     <string name="notification_filter_blocking_failed_title">TimeLimit could not block a notification</string>
 
@@ -1271,6 +1274,8 @@
 
     <string name="notification_new_device_title">Device added</string>
 
+    <string name="notification_extra_time_started">Extra time starts</string>
+
     <string name="obsolete_message">You are using TimeLimit at a obsolete Android version.
         Although this can work, it is not recommend.
     </string>