diff --git a/openslides/agenda/forms.py b/openslides/agenda/forms.py
index e4cb375d9..b0c72f58f 100644
--- a/openslides/agenda/forms.py
+++ b/openslides/agenda/forms.py
@@ -27,7 +27,8 @@ class ItemForm(CleanHtmlFormMixin, CssClassMixin, forms.ModelForm):
         error_message=ugettext_lazy("Invalid format. Hours from 0 to 99 and minutes from 00 to 59"),
         max_length=5,
         required=False,
-        label=ugettext_lazy("Duration (hh:mm)"))
+        label=ugettext_lazy("Duration"),
+        help_text=ugettext_lazy('Input format: HH:MM or MM'))
 
     class Meta:
         model = Item
diff --git a/openslides/agenda/models.py b/openslides/agenda/models.py
index 41d922627..1e59cf963 100644
--- a/openslides/agenda/models.py
+++ b/openslides/agenda/models.py
@@ -63,8 +63,7 @@ class Item(SlideMixin, MPTTModel):
     See Item.ITEM_TYPE for more information.
     """
 
-    duration = models.CharField(null=True, blank=True, max_length=5,
-                                verbose_name=ugettext_lazy("Duration (hh:mm)"))
+    duration = models.CharField(null=True, blank=True, max_length=5)
     """
     The intended duration for the topic.
     """