diff -rbup xfce4-datetime-plugin-0.5.0.orig/panel-plugin/datetime.c xfce4-datetime-plugin-0.5.0/panel-plugin/datetime.c
--- xfce4-datetime-plugin-0.5.0.orig/panel-plugin/datetime.c	2007-01-21 16:41:48.000000000 +0100
+++ xfce4-datetime-plugin-0.5.0/panel-plugin/datetime.c	2007-03-28 19:50:21.000000000 +0200
@@ -116,6 +116,24 @@ gboolean datetime_update(gpointer data)
       gtk_box_reorder_child(GTK_BOX(datetime->vbox), datetime->time_label, 0);
       gtk_box_reorder_child(GTK_BOX(datetime->vbox), datetime->date_label, 1);
   }
+
+  /* update tooltip */
+  switch(datetime->layout)
+  {
+    case LAYOUT_DATE:
+      gtk_tooltips_set_tip(GTK_TOOLTIPS(datetime->tips), datetime->eventbox,
+          gtk_label_get_text(GTK_LABEL(datetime->time_label)), NULL);
+      break;
+    case LAYOUT_TIME:
+      gtk_tooltips_set_tip(GTK_TOOLTIPS(datetime->tips), datetime->eventbox,
+          gtk_label_get_text(GTK_LABEL(datetime->date_label)), NULL);
+      break;
+    default:
+      gtk_tooltips_set_tip(GTK_TOOLTIPS(datetime->tips), datetime->eventbox,
+          NULL, NULL);
+      break;
+  }
+
   return TRUE;
 }
 
@@ -555,6 +573,9 @@ static void datetime_create_widget(t_dat
   gtk_box_reorder_child(GTK_BOX(datetime->vbox), datetime->time_label, 0);
   gtk_box_reorder_child(GTK_BOX(datetime->vbox), datetime->date_label, 1);
 
+  /* create tooltips */
+  datetime->tips = gtk_tooltips_new ();
+
   /* connect widget signals to functions */
   g_signal_connect(datetime->eventbox, "button-press-event",
       G_CALLBACK(datetime_clicked), datetime);
diff -rbup xfce4-datetime-plugin-0.5.0.orig/panel-plugin/datetime.h xfce4-datetime-plugin-0.5.0/panel-plugin/datetime.h
--- xfce4-datetime-plugin-0.5.0.orig/panel-plugin/datetime.h	2007-01-15 10:16:02.000000000 +0100
+++ xfce4-datetime-plugin-0.5.0/panel-plugin/datetime.h	2007-03-28 19:50:24.000000000 +0200
@@ -44,6 +44,7 @@ typedef struct {
   GtkWidget *vbox;
   GtkWidget *date_label;
   GtkWidget *time_label;
+  GtkWidget *tips;
   guint timeout_id;
 
   /* settings */