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 69a4325..17fb23c 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
@@ -2708,6 +2708,15 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 					operationDefinition.getOperationId(), map);
 			break;
 		case TIMEDIMENSION:
+			operationDefinition = OperationDefinitionMap.map(
+					OperationsId.ChangeToTimeDimensionColumn.toString(),
+					capabilities);
+
+			map.put(Constants.PARAMETER_PERIOD_FORMAT, changeColumnTypeSession
+					.getTimeDimensionType().toString());
+			invocation = new OperationExecution(changeColumnTypeSession
+					.getColumnData().getColumnId(),
+					operationDefinition.getOperationId(), map);
 			break;
 		default:
 			break;
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/Constants.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/Constants.java
index b825ffc..605d9e2 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/Constants.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/Constants.java
@@ -31,7 +31,7 @@ public class Constants {
 	public static final String PARAMETER_TARGET_DATA_TYPE="targetDataType";
 	
 	public static final String PARAMETER_REFERENCE_COLUMN="refColumn";
-	
+	public static final String PARAMETER_PERIOD_FORMAT="periodFormat";
 	public static final String PARAMETER_EXPRESSION="expression";
 	
 	public static final String PARAMETER_TABLE_TYPE="tableType";