diff --git a/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/HistoryService.java b/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/HistoryService.java
index ecf38bd6c6a85e6d0f1431708a69f3431aff4730..a57c85cbf53c49f316a37b1cd68f340130f62f6a 100644
--- a/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/HistoryService.java
+++ b/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/HistoryService.java
@@ -22,8 +22,8 @@ public class HistoryService {
   private static final String KAFKA_OUTPUT_TOPIC_DEFAULT = "output";
   
   // UC3 specific (default)
-  private static final String WINDOW_SIZE_IN_SECONDS_DEFAULT = "2629800";
-  private static final String HOPSIZE_IN_SEC_DEFAULT = "86400";
+  private static final String WINDOW_SIZE_IN_SECONDS_DEFAULT = "30";
+  private static final String HOPSIZE_IN_SEC_DEFAULT = "1";
 
   // Job name (default)
   private static final String JOB_NAME = "uc3-hazelcastjet";
diff --git a/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/Uc3PipelineBuilder.java b/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/Uc3PipelineBuilder.java
index c8427de60742c2923d4ec17703592f5b8310de0c..5df6a7bb14f89a684b893600140aa094067ea983 100644
--- a/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/Uc3PipelineBuilder.java
+++ b/theodolite-benchmarks/uc3-hazelcastjet/src/main/java/rocks/theodolite/benchmarks/uc3/hazelcastjet/Uc3PipelineBuilder.java
@@ -109,8 +109,8 @@ public class Uc3PipelineBuilder {
         // group by new keys
         .groupingKey(Entry::getKey)
         // Sliding/Hopping Window
-        .window(WindowDefinition.sliding(TimeUnit.SECONDS.toMillis(windowSizeInSeconds),
-            TimeUnit.SECONDS.toMillis(hoppingSizeInSeconds)))
+        .window(WindowDefinition.sliding(TimeUnit.DAYS.toMillis(windowSizeInSeconds),
+            TimeUnit.DAYS.toMillis(hoppingSizeInSeconds)))
         // get average value of group (sensoreId,hourOfDay)
         .aggregate(
             AggregateOperations.averagingDouble(record -> record.getValue().getValueInW()))