diff --git a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchivingFinalizer.java b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchivingFinalizer.java
index af4e02f586daf49ba35105d3c9e15e0be8f4b7c7..a1f2471ffea97413cc054bff686a09b715dc1dba 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchivingFinalizer.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchivingFinalizer.java
@@ -65,7 +65,7 @@ class MultiDataSetArchivingFinalizer implements IProcessingPluginTask
     public static final String START_TIME_KEY = "start-time";
     public static final String STATUS_KEY = "status";
     
-    public static final String TIME_STAMP_FORMAT = "yyyy-MM-dd HH:mm:ss";
+    public static final String TIME_STAMP_FORMAT = "yyyyMMdd-HHmmss";
     
     private static final Logger operationLog = LogFactory.getLogger(LogCategory.OPERATION,
             MultiDataSetArchivingFinalizer.class);
diff --git a/datastore_server/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchiverTest.java b/datastore_server/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchiverTest.java
index 1277cb4da4dd0575bc398cc881f962d203ff93c3..bb5d7448aab787a6a7fbbf069fb5de57817db943 100644
--- a/datastore_server/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchiverTest.java
+++ b/datastore_server/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/standard/archiver/MultiDataSetArchiverTest.java
@@ -738,7 +738,8 @@ public class MultiDataSetArchiverTest extends AbstractFileSystemTestCase
         assertEquals(1, freeSpaceRecorder.getRecordedObjects().size());
         assertEquals("{original-file-path=" + archive.getAbsolutePath() + "/ds2-yyyyMMdd-HHmmss.tar, "
                 + "replicated-file-path=" + replicate.getAbsolutePath() + "/ds2-yyyyMMdd-HHmmss.tar, "
-                + "finalizer-polling-time=300000, finalizer-max-waiting-time=172800000, status=ARCHIVED}",
+                + "finalizer-polling-time=300000, start-time=yyyyMMdd-HHmmss, "
+                + "finalizer-max-waiting-time=172800000, status=ARCHIVED}",
                 removeTimeInformationFromContent(parametersRecorder.recordedObject().toString()));
         assertEquals("", dataSetDeleter.toString());
         assertEquals("[" + staging.getAbsolutePath() + "/ds2-yyyyMMdd-HHmmss.tar]", 
@@ -1463,7 +1464,7 @@ public class MultiDataSetArchiverTest extends AbstractFileSystemTestCase
     private String removeTimeInformationFromContent(String content)
     {
         return content.replaceAll("0:\\d{2}:\\d{2}\\.\\d{3}", "0:??:??.???")
-                .replaceAll("\\d{8}-\\d{6}\\.tar", "yyyyMMdd-HHmmss.tar");
+                .replaceAll("\\d{8}-\\d{6}", "yyyyMMdd-HHmmss");
     }
 
 }