diff --git a/tryton/action/main.py b/tryton/action/main.py
index 7159c0f3c2..c5eb1715df 100644
--- a/tryton/action/main.py
+++ b/tryton/action/main.py
@@ -69,11 +69,6 @@ class Action(object):
     def _exec_action(action, data=None, context=None):
         if context is None:
             context = {}
-        else:
-            context = context.copy()
-        if 'date_format' not in context:
-            context['date_format'] = rpc.CONTEXT.get(
-                'locale', {}).get('date', '%x')
         if data is None:
             data = {}
         else:
diff --git a/tryton/gui/window/view_form/screen/screen.py b/tryton/gui/window/view_form/screen/screen.py
index f7f7492f42..549de46f28 100644
--- a/tryton/gui/window/view_form/screen/screen.py
+++ b/tryton/gui/window/view_form/screen/screen.py
@@ -137,6 +137,8 @@ class Screen(SignalEvent):
         self.search_value = search_value
         self.fields_view_tree = {}
         self.order = self.default_order = order
+        self.__date_format = context.get(
+            'date_format', rpc.CONTEXT.get('locale', {}).get('date', '%x'))
         self.view_to_load = []
         self._domain_parser = {}
         self.pre_validate = False
@@ -328,6 +330,10 @@ class Screen(SignalEvent):
     def context(self):
         return self.group.context
 
+    @property
+    def date_format(self):
+        return self.__date_format
+
     def __get_group(self):
         return self.__group
 
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 7c6af7be85..505522dea7 100644
--- a/tryton/gui/window/view_form/view/form_gtk/calendar.py
+++ b/tryton/gui/window/view_form/view/form_gtk/calendar.py
@@ -64,7 +64,7 @@ class Date(Widget):
         if field and record:
             format_ = field.date_format(record)
         else:
-            format_ = self.view.screen.context.get('date_format', '%x')
+            format_ = self.view.screen.date_format
         self.entry.props.format = format_
 
     def display(self, record, field):
@@ -142,7 +142,7 @@ class DateTime(Date):
             date_format = field.date_format(record)
             time_format = field.time_format(record)
         else:
-            date_format = self.view.screen.context.get('date_format', '%x')
+            date_format = self.view.screen.date_format
             time_format = '%X'
         self.entry.props.date_format = date_format
         self.entry.props.time_format = time_format