diff --git a/src/main/java/no/bioforsk/vips/model/oatfloweringmodel/OatFloweringModel.java b/src/main/java/no/bioforsk/vips/model/oatfloweringmodel/OatFloweringModel.java
index c27007a1a74748761f0e96f7cb45ad967a51aac9..e6ff1120ca03a7097b7875a513b45498308655c0 100644
--- a/src/main/java/no/bioforsk/vips/model/oatfloweringmodel/OatFloweringModel.java
+++ b/src/main/java/no/bioforsk/vips/model/oatfloweringmodel/OatFloweringModel.java
@@ -19,11 +19,13 @@
 
 package no.bioforsk.vips.model.oatfloweringmodel;
 
+
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
+import java.util.TimeZone;
 import no.bioforsk.vips.entity.ModelConfiguration;
 import no.bioforsk.vips.entity.Result;
 import no.bioforsk.vips.entity.ResultImpl;
@@ -46,6 +48,7 @@ public class OatFloweringModel extends I18nImpl implements Model{
     
     private List<WeatherObservation> TM;
     private Date dateOfSowing;
+    private final static TimeZone DEFAULT_TIME_ZONE = TimeZone.getTimeZone("Europe/Oslo");
     
     private final static ModelId MODEL_ID = new ModelId("OATFLOWERM");
 
@@ -220,7 +223,7 @@ public class OatFloweringModel extends I18nImpl implements Model{
             
             // Must be complete set of daily mean temperatures
             WeatherUtil wUtil = new WeatherUtil();
-            Date potentialHole = wUtil.findFirstHoleInObservationSeries(observations, WeatherObservation.LOG_INTERVAL_ID_1D);
+            Date potentialHole = wUtil.findFirstHoleInObservationSeries(observations, WeatherObservation.LOG_INTERVAL_ID_1D, OatFloweringModel.DEFAULT_TIME_ZONE);
             if(potentialHole != null)
             {
                 throw new ConfigValidationException("Hole found in temperature series at = " + potentialHole);