diff --git a/AsbCloudInfrastructure/Repository/DetectedOperationRepository.cs b/AsbCloudInfrastructure/Repository/DetectedOperationRepository.cs
index 3cbb9c07..21db64ba 100644
--- a/AsbCloudInfrastructure/Repository/DetectedOperationRepository.cs
+++ b/AsbCloudInfrastructure/Repository/DetectedOperationRepository.cs
@@ -60,7 +60,8 @@ public class DetectedOperationRepository : CrudRepositoryBase<DetectedOperationD
         var query = BuildQuery(request)
             .Include(o => o.OperationCategory);
         var entities = await query.ToArrayAsync(token);
-        var dtos = entities.Select(Convert);
+        var offset = telemetryService.GetTimezone(request.IdTelemetry).Offset;
+        var dtos = entities.Select(o => Convert(o, offset));
 
         return dtos;
     }
@@ -181,13 +182,11 @@ public class DetectedOperationRepository : CrudRepositoryBase<DetectedOperationD
         return query;
     }
 
-    protected override DetectedOperationDto Convert(DetectedOperation src)
+    protected virtual DetectedOperationDto Convert(DetectedOperation src, TimeSpan offset)
     {
-        var timezone = telemetryService.GetTimezone(src.IdTelemetry);
-        
         var dto = src.Adapt<DetectedOperationDto>();
-        dto.DateStart = src.DateStart.ToOffset(timezone.Offset);
-        dto.DateEnd = src.DateEnd.ToOffset(timezone.Offset);
+        dto.DateStart = src.DateStart.ToOffset(offset);
+        dto.DateEnd = src.DateEnd.ToOffset(offset);
         return dto;
     }