diff --git a/django/forms/fields.py b/django/forms/fields.py
index d90b8dbb51..7e4e5df833 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -115,8 +115,6 @@ class Field(object):
         super(Field, self).__init__()
 
     def prepare_value(self, value):
-        if self.widget.is_localized:
-            value = formats.localize_input(value)
         return value
 
     def to_python(self, value):
@@ -468,7 +466,6 @@ class DateTimeField(BaseTemporalField):
     }
 
     def prepare_value(self, value):
-        value = super(DateTimeField, self).prepare_value(value)
         if isinstance(value, datetime.datetime):
             value = to_current_timezone(value)
         return value
diff --git a/django/forms/forms.py b/django/forms/forms.py
index 64d1550066..490d9c2c3b 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -463,6 +463,9 @@ class BoundField(object):
         if not widget:
             widget = self.field.widget
 
+        if self.field.localize:
+            widget.is_localized = True
+
         attrs = attrs or {}
         auto_id = self.auto_id
         if auto_id and 'id' not in attrs and 'id' not in widget.attrs: