diff --git a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationEngine.kt b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationEngine.kt
index 64b1875..1a0c980 100644
--- a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationEngine.kt
+++ b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationEngine.kt
@@ -38,6 +38,7 @@ data class ScheduledAutomationOccurrence(
     val sceneId: String,
     val triggerId: String,
     val occurrenceKey: String,
+    val triggerDefinition: String,
     val scheduledAtEpochMillis: Long,
     val expiresAtEpochMillis: Long,
 )
@@ -57,23 +58,37 @@ class DefaultAutomationEngine(
     override suspend fun evaluate(
         profileId: ProviderProfileId,
         scheduledOccurrence: ScheduledAutomationOccurrence?,
-    ): DomainResult<Int> = evaluationMutex.withLock {
-        evaluateLocked(profileId, scheduledOccurrence)
+    ): DomainResult<Int> {
+        val scenesToExecute = when (val prepared = evaluationMutex.withLock { prepareExecutions(profileId, scheduledOccurrence) }) {
+            is DomainResult.Failure -> return prepared
+            is DomainResult.Success -> prepared.value
+        }
+        var executed = 0
+        for (scene in scenesToExecute) {
+            sceneExecutor.execute(
+                scene = scene,
+                executionId = SceneExecutionId("auto-${UUID.randomUUID()}"),
+                source = SceneExecutionSource.AUTOMATION,
+            ).collect { update ->
+                if (update is com.flagship.abox.manager.domain.SceneExecutionUpdate.Completed) executed++
+            }
+        }
+        return DomainResult.Success(executed)
     }
 
-    private suspend fun evaluateLocked(
+    private suspend fun prepareExecutions(
         profileId: ProviderProfileId,
         scheduledOccurrence: ScheduledAutomationOccurrence?,
-    ): DomainResult<Int> {
+    ): DomainResult<List<Scene>> {
         val scenes = when (val result = sceneRepository.observeScenes(profileId).first()) {
             is DomainResult.Failure -> return result
             is DomainResult.Success -> result.value.filter { it.enabled && it.type == AutomationType.AUTOMATIC }
         }
-        if (scenes.isEmpty()) return DomainResult.Success(0)
+        if (scenes.isEmpty()) return DomainResult.Success(emptyList())
 
         val snapshot = collectSnapshot(profileId, scenes)
         val now = LocalDateTime.ofInstant(Instant.ofEpochMilli(snapshot.observedAtEpochMillis), ZoneId.systemDefault())
-        var executed = 0
+        val executions = mutableListOf<Scene>()
         for (scene in scenes) {
             var newlyMatched = false
             val newlyMatchedStateTriggers = mutableListOf<SceneTrigger>()
@@ -91,6 +106,7 @@ class DefaultAutomationEngine(
                     trigger is SceneTrigger.Time &&
                     scheduledOccurrence?.sceneId == scene.id.value &&
                     scheduledOccurrence.triggerId == trigger.id.value &&
+                    scheduledOccurrence.triggerDefinition == trigger.automationDefinition() &&
                     snapshot.observedAtEpochMillis in scheduledOccurrence.scheduledAtEpochMillis..scheduledOccurrence.expiresAtEpochMillis
                 ) {
                     TriggerEvaluation.Matched(scheduledOccurrence.occurrenceKey)
@@ -143,16 +159,10 @@ class DefaultAutomationEngine(
             if (executionCount == 0) continue
 
             repeat(executionCount) {
-                sceneExecutor.execute(
-                    scene = scene,
-                    executionId = SceneExecutionId("auto-${UUID.randomUUID()}"),
-                    source = SceneExecutionSource.AUTOMATION,
-                ).collect { update ->
-                    if (update is com.flagship.abox.manager.domain.SceneExecutionUpdate.Completed) executed++
-                }
+                executions += scene
             }
         }
-        return DomainResult.Success(executed)
+        return DomainResult.Success(executions)
     }
 
     private suspend fun collectSnapshot(profileId: ProviderProfileId, scenes: List<Scene>): AutomationSnapshot {
@@ -184,3 +194,6 @@ class DefaultAutomationEngine(
     }
 
 }
+
+internal fun SceneTrigger.Time.automationDefinition(): String =
+    listOf(timeOfDay, daysOfWeek.sorted().joinToString(",")).joinToString("|")
diff --git a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationPollWorker.kt b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationPollWorker.kt
index 5d10e42..9348b2b 100644
--- a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationPollWorker.kt
+++ b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/AutomationPollWorker.kt
@@ -37,10 +37,11 @@ class AutomationPollWorker @AssistedInject constructor(
                 val scheduledOccurrence = inputData.getString(WorkManagerAutomationScheduleStore.KEY_OCCURRENCE_KEY)?.let { key ->
                     val sceneId = inputData.getString(WorkManagerAutomationScheduleStore.KEY_SCENE_ID)
                     val triggerId = inputData.getString(WorkManagerAutomationScheduleStore.KEY_TRIGGER_ID)
+                    val triggerDefinition = inputData.getString(WorkManagerAutomationScheduleStore.KEY_TRIGGER_DEFINITION)
                     val scheduledAt = inputData.getLong(WorkManagerAutomationScheduleStore.KEY_SCHEDULED_AT_EPOCH_MILLIS, -1L)
                     val expiresAt = inputData.getLong(WorkManagerAutomationScheduleStore.KEY_EXPIRES_AT_EPOCH_MILLIS, -1L)
-                    if (sceneId != null && triggerId != null && scheduledAt >= 0L && expiresAt >= scheduledAt) {
-                        ScheduledAutomationOccurrence(sceneId, triggerId, key, scheduledAt, expiresAt)
+                    if (sceneId != null && triggerId != null && triggerDefinition != null && scheduledAt >= 0L && expiresAt >= scheduledAt) {
+                        ScheduledAutomationOccurrence(sceneId, triggerId, key, triggerDefinition, scheduledAt, expiresAt)
                     } else null
                 }
                 when (automationEngine.evaluate(profileId, scheduledOccurrence)) {
diff --git a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/WorkManagerAutomationScheduleStore.kt b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/WorkManagerAutomationScheduleStore.kt
index 798be10..1318c3c 100644
--- a/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/WorkManagerAutomationScheduleStore.kt
+++ b/android/feature/automation/src/main/kotlin/com/flagship/abox/manager/automation/runtime/WorkManagerAutomationScheduleStore.kt
@@ -24,7 +24,6 @@ class WorkManagerAutomationScheduleStore(context: Context) : AutomationScheduleS
             .setInputData(androidx.work.Data.Builder().putString(KEY_PROFILE_ID, profileId.value).build())
             .build()
         workManager.enqueueUniquePeriodicWork(workName(profileId), ExistingPeriodicWorkPolicy.UPDATE, request)
-        workManager.cancelAllWorkByTag(timeWorkTag(profileId))
         scenes.forEach { scene ->
             scene.triggers.filterIsInstance<SceneTrigger.Time>().forEach { trigger ->
                 scheduleNextTimeTrigger(profileId, scene, trigger)
@@ -40,8 +39,8 @@ class WorkManagerAutomationScheduleStore(context: Context) : AutomationScheduleS
     }
 
     private fun workName(profileId: ProviderProfileId) = "automation:${profileId.value}"
-    private fun timeWorkName(profileId: ProviderProfileId, scene: Scene, trigger: SceneTrigger.Time) =
-        "automation-time:${profileId.value}:${scene.id.value}:${trigger.id.value}"
+    private fun timeWorkName(profileId: ProviderProfileId, scene: Scene, trigger: SceneTrigger.Time, occurrenceKey: String) =
+        "automation-time:${profileId.value}:${scene.id.value}:${trigger.id.value}:$occurrenceKey"
     private fun timeWorkTag(profileId: ProviderProfileId) = "automation-time:${profileId.value}"
 
     private fun scheduleNextTimeTrigger(profileId: ProviderProfileId, scene: Scene, trigger: SceneTrigger.Time) {
@@ -55,6 +54,7 @@ class WorkManagerAutomationScheduleStore(context: Context) : AutomationScheduleS
             ?.toInstant()
             ?.minusMillis(1)
         val expiresAt = listOfNotNull(maximumExpiry, followingOccurrence).minOrNull() ?: maximumExpiry
+        val occurrenceKey = "${scheduledAt.toLocalDate()}:${trigger.timeOfDay}:${trigger.id.value}"
         val request = OneTimeWorkRequestBuilder<AutomationPollWorker>()
             .setInitialDelay(delay.toMillis().coerceAtLeast(0), TimeUnit.MILLISECONDS)
             .addTag(timeWorkTag(profileId))
@@ -63,15 +63,16 @@ class WorkManagerAutomationScheduleStore(context: Context) : AutomationScheduleS
                     .putString(KEY_PROFILE_ID, profileId.value)
                     .putString(KEY_SCENE_ID, scene.id.value)
                     .putString(KEY_TRIGGER_ID, trigger.id.value)
-                    .putString(KEY_OCCURRENCE_KEY, "${scheduledAt.toLocalDate()}:${trigger.timeOfDay}:${trigger.id.value}")
+                    .putString(KEY_OCCURRENCE_KEY, occurrenceKey)
+                    .putString(KEY_TRIGGER_DEFINITION, trigger.automationDefinition())
                     .putLong(KEY_SCHEDULED_AT_EPOCH_MILLIS, scheduledAtInstant.toEpochMilli())
                     .putLong(KEY_EXPIRES_AT_EPOCH_MILLIS, expiresAt.toEpochMilli())
                     .build(),
             )
             .build()
         workManager.enqueueUniqueWork(
-            timeWorkName(profileId, scene, trigger),
-            androidx.work.ExistingWorkPolicy.REPLACE,
+            timeWorkName(profileId, scene, trigger, occurrenceKey),
+            androidx.work.ExistingWorkPolicy.KEEP,
             request,
         )
     }
@@ -92,6 +93,7 @@ class WorkManagerAutomationScheduleStore(context: Context) : AutomationScheduleS
         const val KEY_SCENE_ID = "scene_id"
         const val KEY_TRIGGER_ID = "trigger_id"
         const val KEY_OCCURRENCE_KEY = "occurrence_key"
+        const val KEY_TRIGGER_DEFINITION = "trigger_definition"
         const val KEY_SCHEDULED_AT_EPOCH_MILLIS = "scheduled_at_epoch_millis"
         const val KEY_EXPIRES_AT_EPOCH_MILLIS = "expires_at_epoch_millis"