diff --git a/biscuit/apps/chronos/util.py b/biscuit/apps/chronos/util.py
index fe5f203b31f722ee0e65fe9b115897c0b06705ca..3e5b4ed694234866613fde1648cb336b882bb73c 100644
--- a/biscuit/apps/chronos/util.py
+++ b/biscuit/apps/chronos/util.py
@@ -6,6 +6,7 @@ from typing import Optional, Sequence, Tuple
 
 from django.apps import apps
 from django.db import models
+from django.utils.translation import ugettext as _
 
 
 @dataclass
@@ -29,6 +30,9 @@ class CalendarWeek:
         if not self.week:
             self.week = today.isoweekday()
 
+    def __str__(self) -> str:
+        return '%s (%s %s %s)' % (_('Kalenderwoche'), self[0], _('to'), self[-1])
+
     def __len__(self) -> int:
         return 7