diff --git a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/EntityPropertyPE.java b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/EntityPropertyPE.java
index 26927ee8682362ea717e6979e09fb0bebf2d979a..71b9abbcadf2b29b57d9209cc827d0d20e310fd5 100644
--- a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/EntityPropertyPE.java
+++ b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/EntityPropertyPE.java
@@ -357,7 +357,7 @@ public abstract class EntityPropertyPE extends HibernateAbstractRegistrationHold
     private String convertTimestampArrayToString(Date[] array) {
         if (array == null || array.length == 0)
             return "";
-        DateFormat dateFormat = new SimpleDateFormat(BasicConstant.DATE_HOURS_MINUTES_SECONDS_PATTERN);
+        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss XX");
         return Stream.of(array)
                 .map(dateFormat::format)
                 .reduce((x, y) -> x + ", " + y)