diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index 73d4392..d11d242 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -1182,14 +1182,14 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 							if(tMetadata instanceof ExportMetadata){
 								TRExportMetadata trExportMetadata=new TRExportMetadata();
 								trExportMetadata.setDestinationType(((ExportMetadata)tMetadata).getDestinationType());
-								trExportMetadata.setExportDate(((ExportMetadata)tMetadata).getExportDate());
+								trExportMetadata.setExportDate(sdf.format(((ExportMetadata)tMetadata).getExportDate()));
 								trExportMetadata.setUrl(((ExportMetadata)tMetadata).getUri());
 								listTRMetadata.add(trExportMetadata);
 							}else{
 								if(tMetadata instanceof ImportMetadata){
 									TRImportMetadata trImportMetadata=new TRImportMetadata();
 									trImportMetadata.setSourceType(((ImportMetadata)tMetadata).getSourceType());
-									trImportMetadata.setImportDate(((ImportMetadata)tMetadata).getImportDate());
+									trImportMetadata.setImportDate(sdf.format(((ImportMetadata)tMetadata).getImportDate()));
 									trImportMetadata.setUrl(((ImportMetadata)tMetadata).getUri());
 									listTRMetadata.add(trImportMetadata);
 								}else{
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRExportMetadata.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRExportMetadata.java
index 4c69845..e7a4e04 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRExportMetadata.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRExportMetadata.java
@@ -17,7 +17,7 @@ public class TRExportMetadata implements TRMetadata {
 	
 	private String destinationType;
 	private String url;
-	private Date exportDate;
+	private String exportDate;
 	
 	public String getDestinationType() {
 		return destinationType;
@@ -31,10 +31,10 @@ public class TRExportMetadata implements TRMetadata {
 	public void setUrl(String url) {
 		this.url = url;
 	}
-	public Date getExportDate() {
+	public String getExportDate() {
 		return exportDate;
 	}
-	public void setExportDate(Date exportDate) {
+	public void setExportDate(String exportDate) {
 		this.exportDate = exportDate;
 	}
 	@Override
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRImportMetadata.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRImportMetadata.java
index f8d5139..96d508c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRImportMetadata.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/metadata/TRImportMetadata.java
@@ -16,7 +16,7 @@ public class TRImportMetadata implements TRMetadata {
 	
 	private String sourceType;
 	private String url;
-	private Date importDate;
+	private String importDate;
 
 	public String getSourceType() {
 		return sourceType;
@@ -34,11 +34,11 @@ public class TRImportMetadata implements TRMetadata {
 		this.url = url;
 	}
 
-	public Date getImportDate() {
+	public String getImportDate() {
 		return importDate;
 	}
 
-	public void setImportDate(Date importDate) {
+	public void setImportDate(String importDate) {
 		this.importDate = importDate;
 	}