diff --git a/ReportImp/KcmGmbH/KcmGmbH.csproj b/ReportImp/KcmGmbH/KcmGmbH.csproj
index 1790b6ed1..d08c6c405 100644
--- a/ReportImp/KcmGmbH/KcmGmbH.csproj
+++ b/ReportImp/KcmGmbH/KcmGmbH.csproj
@@ -85,6 +85,7 @@
     <Compile Include="ServiceInvoiceReport.Designer.cs">
       <DependentUpon>ServiceInvoiceReport.cs</DependentUpon>
     </Compile>
+    <Compile Include="Service\ServiceRecordValidator.cs" />
     <Compile Include="SettlementReport.cs">
       <SubType>Component</SubType>
     </Compile>
diff --git a/ReportImp/KcmGmbH/Service/ServiceRecordValidator.cs b/ReportImp/KcmGmbH/Service/ServiceRecordValidator.cs
new file mode 100644
index 000000000..0a8a5272f
--- /dev/null
+++ b/ReportImp/KcmGmbH/Service/ServiceRecordValidator.cs
@@ -0,0 +1,29 @@
+using BeWo.Service.Plugins;
+using BS.Shared;
+using BS.Shared.DataContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace KcmGmbH.Service
+{
+	public class CustomServiceRecordValidator : ServiceRecordValidator
+	{
+		public override List<ServiceRecordValidationResultDC> ValidateServiceRecord(ServiceRecordDC newServiceRecord, SupportConceptStatisticsDC statistics, int maxDaysEditServiceRecordsAllowed, IList<long> employeeOids, IList<long> cb2scOids)
+		{
+			var list = base.ValidateServiceRecord(newServiceRecord, statistics, maxDaysEditServiceRecordsAllowed, employeeOids, cb2scOids);
+			DateTime start = newServiceRecord.Start.Value;
+			bool noTime = (start.Hour == 0 && start.Minute == 0 && start.Second == 1); //Keine Zeit angegeben
+			var duration = (decimal)newServiceRecord.End.Value.Subtract(newServiceRecord.Start.Value).TotalMinutes;
+			if (noTime && duration != 0 && newServiceRecord.ServiceDescription.Category.IsBillable)
+			{
+				list.Add(new ServiceRecordValidationResultDC
+				{
+					ResultType = ServiceRecordValidationResult.Custom,
+					Message = "Der Zeiterfassungseintrag muss eine Startzeit haben."
+				});
+			}			
+			return list;
+		}
+	}
+}
\ No newline at end of file