diff --git a/tryton/common/datetime_.py b/tryton/common/datetime_.py
index 8552ad4500..96189db9dc 100644
--- a/tryton/common/datetime_.py
+++ b/tryton/common/datetime_.py
@@ -435,6 +435,22 @@ class DateTime(gtk.HBox):
         elif prop.name == 'time-format':
             return self.__time.props.format
 
+    def modify_bg(self, state, color):
+        self.__date.modify_bg(state, color)
+        self.__time.child.modify_bg(state, color)
+
+    def modify_base(self, state, color):
+        self.__date.modify_base(state, color)
+        self.__time.child.modify_base(state, color)
+
+    def modify_fg(self, state, color):
+        self.__date.modify_fg(state, color)
+        self.__time.child.modify_fg(state, color)
+
+    def modify_text(self, state, color):
+        self.__date.modify_text(state, color)
+        self.__time.child.modify_text(state, color)
+
 gobject.type_register(DateTime)
 
 
diff --git a/tryton/gui/window/view_form/view/form_gtk/calendar.py b/tryton/gui/window/view_form/view/form_gtk/calendar.py
index 246880efbe..dac644beb9 100644
--- a/tryton/gui/window/view_form/view/form_gtk/calendar.py
+++ b/tryton/gui/window/view_form/view/form_gtk/calendar.py
@@ -33,7 +33,8 @@ class Date(Widget):
         return self.entry
 
     def _set_editable(self, value):
-        self.real_entry.set_editable(value)
+        self.entry.set_editable(value)
+        self.entry.set_icon_sensitive(gtk.ENTRY_ICON_SECONDARY, value)
 
     def _readonly_set(self, value):
         self._set_editable(not value)
@@ -79,6 +80,12 @@ class Time(Date):
         super(Time, self).__init__(view, attrs, _entry=TimeEntry)
         self.entry.set_focus_chain([self.entry.get_child()])
 
+    def _color_widget(self):
+        return self.entry.child
+
+    def _set_editable(self, value):
+        self.entry.set_sensitive(value)
+
     @property
     def real_entry(self):
         return self.entry.get_child()
@@ -112,14 +119,13 @@ class DateTime(Date):
             child.connect('focus-out-event', lambda x, y: self._focus_out())
         self.widget.pack_start(self.entry, expand=False, fill=False)
 
-    def _color_widget(self):
-        return self.entry.get_children()[0]  # XXX not always sure to have Date
-
     def _set_editable(self, value):
         for child in self.entry.get_children():
-            if not hasattr(child, 'set_editable'):
-                child = child.child
-            child.set_editable(value)
+            if isinstance(child, gtk.Entry):
+                child.set_editable(value)
+                child.set_icon_sensitive(gtk.ENTRY_ICON_SECONDARY, value)
+            elif isinstance(child, gtk.ComboBoxEntry):
+                child.set_sensitive(value)
 
     def set_format(self, record, field):
         if field and record: