diff --git a/application/src/main/java/org/thingsboard/server/controller/AlarmController.java b/application/src/main/java/org/thingsboard/server/controller/AlarmController.java
index 09e6dd5d10..140c9ecf86 100644
--- a/application/src/main/java/org/thingsboard/server/controller/AlarmController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/AlarmController.java
@@ -118,7 +118,9 @@ public class AlarmController extends BaseController {
         try {
             AlarmId alarmId = new AlarmId(toUUID(strAlarmId));
             Alarm alarm = checkAlarmId(alarmId, Operation.WRITE);
-            alarmService.ackAlarm(getCurrentUser().getTenantId(), alarmId, System.currentTimeMillis()).get();
+            long ackTs = System.currentTimeMillis();
+            alarmService.ackAlarm(getCurrentUser().getTenantId(), alarmId, ackTs).get();
+            alarm.setAckTs(ackTs);
             logEntityAction(alarmId, alarm, getCurrentUser().getCustomerId(), ActionType.ALARM_ACK, null);
         } catch (Exception e) {
             throw handleException(e);
@@ -133,7 +135,9 @@ public class AlarmController extends BaseController {
         try {
             AlarmId alarmId = new AlarmId(toUUID(strAlarmId));
             Alarm alarm = checkAlarmId(alarmId, Operation.WRITE);
-            alarmService.clearAlarm(getCurrentUser().getTenantId(), alarmId, null, System.currentTimeMillis()).get();
+            long clearTs = System.currentTimeMillis();
+            alarmService.clearAlarm(getCurrentUser().getTenantId(), alarmId, null, clearTs).get();
+            alarm.setClearTs(clearTs);
             logEntityAction(alarmId, alarm, getCurrentUser().getCustomerId(), ActionType.ALARM_CLEAR, null);
         } catch (Exception e) {
             throw handleException(e);
diff --git a/common/dao-api/src/main/java/org/thingsboard/server/dao/alarm/AlarmService.java b/common/dao-api/src/main/java/org/thingsboard/server/dao/alarm/AlarmService.java
index 19cf4bbbb3..e2277497a5 100644
--- a/common/dao-api/src/main/java/org/thingsboard/server/dao/alarm/AlarmService.java
+++ b/common/dao-api/src/main/java/org/thingsboard/server/dao/alarm/AlarmService.java
@@ -39,7 +39,7 @@ public interface AlarmService {
 
     ListenableFuture<Boolean> ackAlarm(TenantId tenantId, AlarmId alarmId, long ackTs);
 
-    ListenableFuture<Boolean> clearAlarm(TenantId tenantId, AlarmId alarmId, JsonNode details, long ackTs);
+    ListenableFuture<Boolean> clearAlarm(TenantId tenantId, AlarmId alarmId, JsonNode details, long clearTs);
 
     ListenableFuture<Alarm> findAlarmByIdAsync(TenantId tenantId, AlarmId alarmId);