diff --git a/AsbCloudInfrastructure/Services/TelemetryTracker.cs b/AsbCloudInfrastructure/Services/TelemetryTracker.cs
index b3d65769..801d687f 100644
--- a/AsbCloudInfrastructure/Services/TelemetryTracker.cs
+++ b/AsbCloudInfrastructure/Services/TelemetryTracker.cs
@@ -88,9 +88,15 @@ namespace AsbCloudInfrastructure.Services
                 foreach (var oldReq in oldRequests)
                 {
                     var telemetryStat = telemetriesStats.GetOrAdd(oldReq.Uid, (uid) => new TrackerStat { RemoteUid = uid });
-                    telemetryStat.TelemetryDateMin = oldReq.DateMin;
-                    telemetryStat.TelemetryDateMax = oldReq.DateMax;
-                    telemetryStat.LastTimeServer = oldReq.DateMax;
+                    var dateMin = oldReq.DateMin.Kind == DateTimeKind.Local
+                        ? oldReq.DateMin.ToUniversalTime()
+                        : oldReq.DateMin;
+                    var dateMax = oldReq.DateMax.Kind == DateTimeKind.Local
+                        ? oldReq.DateMax.ToUniversalTime()
+                        : oldReq.DateMax;
+                    telemetryStat.TelemetryDateMin = dateMin;
+                    telemetryStat.TelemetryDateMax = dateMax;
+                    telemetryStat.LastTimeServer = dateMax;
                 }
             }).ContinueWith((t) =>
             {
@@ -123,7 +129,7 @@ namespace AsbCloudInfrastructure.Services
             
             stat.LastTimeServer = DateTime.Now;
 
-            if(stat.TelemetryDateMax < remoteDate)
+            if(stat.TelemetryDateMax.ToUniversalTime() < remoteDate.ToUniversalTime())
                 stat.TelemetryDateMax = remoteDate;
         }