diff --git a/MP.MONO.DECODER/Program.cs b/MP.MONO.DECODER/Program.cs
index a9b5732..00a03a6 100644
--- a/MP.MONO.DECODER/Program.cs
+++ b/MP.MONO.DECODER/Program.cs
@@ -329,7 +329,7 @@ void AlarmsValPipe_EA_NewMessage(object? sender, EventArgs e)
                                         {
                                             MachineId = MachineId,
                                             DtStart = adesso,
-                                            DtEnd = adesso,
+                                            DtEnd = adesso.AddMinutes(-1),
                                             AlarmId = foundAlarm.AlarmId
                                         };
                                         alarmRecList.Add(newAlarmRec);
diff --git a/MP.MONO.Data/DbModels/AlarmRecModel.cs b/MP.MONO.Data/DbModels/AlarmRecModel.cs
index 15e249e..518e4d7 100644
--- a/MP.MONO.Data/DbModels/AlarmRecModel.cs
+++ b/MP.MONO.Data/DbModels/AlarmRecModel.cs
@@ -26,7 +26,7 @@ namespace MP.MONO.Data.DbModels
         /// <summary>
         /// DataOra fine evento (default 0 sec)
         /// </summary>
-        public DateTime DtEnd { get; set; } = DateTime.Now;
+        public DateTime DtEnd { get; set; } = DateTime.Now.AddMinutes(-1);
 
         [NotMapped]
         /// <summary>