diff --git a/AsbCloudInfrastructure/Services/WellCompositeOperationService.cs b/AsbCloudInfrastructure/Services/WellCompositeOperationService.cs
index d1312e6e..fe1f4880 100644
--- a/AsbCloudInfrastructure/Services/WellCompositeOperationService.cs
+++ b/AsbCloudInfrastructure/Services/WellCompositeOperationService.cs
@@ -199,7 +199,7 @@ public class WellCompositeOperationService : IWellCompositeOperationService
             compositeDepth = compositeOperation.DepthStart;
 
             compositeDay += compositeOperation.DurationHours;
-            compositeOperation.Day = compositeDay;
+            compositeOperation.Day = compositeDay / 24;
 
             compositeOperations.Add(compositeOperation);
         }