diff --git a/AsbCloudInfrastructure/Services/Subsystems/SubsystemOperationTimeService.cs b/AsbCloudInfrastructure/Services/Subsystems/SubsystemOperationTimeService.cs
index ff7a3c23..103adbc8 100644
--- a/AsbCloudInfrastructure/Services/Subsystems/SubsystemOperationTimeService.cs
+++ b/AsbCloudInfrastructure/Services/Subsystems/SubsystemOperationTimeService.cs
@@ -214,6 +214,10 @@ namespace AsbCloudInfrastructure.Services.Subsystems
             {
                 beginUTC = gtDate.Value.ToUtcDateTimeOffset(firstWell.Timezone.Hours);                
             }
+            if (ltDate is not null)
+            {
+                beginUTC = ltDate.Value.ToUtcDateTimeOffset(firstWell.Timezone.Hours);
+            }
             query = query.Where(d => d.DateStart >= beginUTC);           
             query = query.Where(o => o.DateEnd <= endUTC);