diff --git a/biscuit/apps/chronos/locale/ar/LC_MESSAGES/django.po b/biscuit/apps/chronos/locale/ar/LC_MESSAGES/django.po
index efae3f420eb639e7e3abe41af0e7ddbb3cdb99d7..70e7fb6594be36569a883e584ea99187d7f3df34 100644
--- a/biscuit/apps/chronos/locale/ar/LC_MESSAGES/django.po
+++ b/biscuit/apps/chronos/locale/ar/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-09-15 14:11+0200\n"
+"POT-Creation-Date: 2019-09-17 15:42+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -148,7 +148,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: templates/chronos/lessons_day.html:7 views.py:130
+#: templates/chronos/lessons_day.html:7
 msgid "Lessons"
 msgstr ""
 
@@ -160,18 +160,23 @@ msgstr ""
 msgid "Times"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "Kalenderwoche"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "to"
 msgstr ""
 
-#: views.py:164
+#: views.py:130
+#, python-format
+msgid "Lessons %s"
+msgstr ""
+
+#: views.py:166
 msgid "The substitution has been saved."
 msgstr ""
 
-#: views.py:183
+#: views.py:185
 msgid "The substitution has been deleted."
 msgstr ""
diff --git a/biscuit/apps/chronos/locale/de_DE/LC_MESSAGES/django.po b/biscuit/apps/chronos/locale/de_DE/LC_MESSAGES/django.po
index 84dae7d91e08b1bd8a455c28cdc55dc370b1b360..af3ca54ddd169b070e94153ddb43ce4c90589d15 100644
--- a/biscuit/apps/chronos/locale/de_DE/LC_MESSAGES/django.po
+++ b/biscuit/apps/chronos/locale/de_DE/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-09-15 14:11+0200\n"
+"POT-Creation-Date: 2019-09-17 15:42+0200\n"
 "PO-Revision-Date: 2019-09-07 22:04+0000\n"
 "Last-Translator: Tom Teichler <tom.teichler@teckids.org>\n"
 "Language-Team: German <https://translate.edugit.org/projects/biscuit-sis/"
@@ -149,7 +149,7 @@ msgstr "Vertretung bearbeiten"
 msgid "Save"
 msgstr "Speichern"
 
-#: templates/chronos/lessons_day.html:7 views.py:130
+#: templates/chronos/lessons_day.html:7
 msgid "Lessons"
 msgstr "Unterrichtsstunden"
 
@@ -161,19 +161,25 @@ msgstr "Auswählen"
 msgid "Times"
 msgstr "Zeiten"
 
-#: util.py:40
+#: util.py:55
 msgid "Kalenderwoche"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "to"
 msgstr ""
 
-#: views.py:164
+#: views.py:130
+#, fuzzy, python-format
+#| msgid "Lessons"
+msgid "Lessons %s"
+msgstr "Unterrichtsstunden"
+
+#: views.py:166
 msgid "The substitution has been saved."
 msgstr "Die Vertretung wurde gespeichert."
 
-#: views.py:183
+#: views.py:185
 msgid "The substitution has been deleted."
 msgstr "Die Vertretung wurde gelöscht."
 
diff --git a/biscuit/apps/chronos/locale/fr/LC_MESSAGES/django.po b/biscuit/apps/chronos/locale/fr/LC_MESSAGES/django.po
index b14c086bedd3741b8816cd04d109e2363dd99d71..4180d70040a3bc360e97f14fcfcac8f3f85b4d51 100644
--- a/biscuit/apps/chronos/locale/fr/LC_MESSAGES/django.po
+++ b/biscuit/apps/chronos/locale/fr/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-09-15 14:11+0200\n"
+"POT-Creation-Date: 2019-09-17 15:42+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -147,7 +147,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: templates/chronos/lessons_day.html:7 views.py:130
+#: templates/chronos/lessons_day.html:7
 msgid "Lessons"
 msgstr ""
 
@@ -159,18 +159,23 @@ msgstr ""
 msgid "Times"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "Kalenderwoche"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "to"
 msgstr ""
 
-#: views.py:164
+#: views.py:130
+#, python-format
+msgid "Lessons %s"
+msgstr ""
+
+#: views.py:166
 msgid "The substitution has been saved."
 msgstr ""
 
-#: views.py:183
+#: views.py:185
 msgid "The substitution has been deleted."
 msgstr ""
diff --git a/biscuit/apps/chronos/locale/nb_NO/LC_MESSAGES/django.po b/biscuit/apps/chronos/locale/nb_NO/LC_MESSAGES/django.po
index f4f2f09b0e28326b127c90b48bb85411408f0aad..82f1020b0933da1b966a83538497b0fe0c397f50 100644
--- a/biscuit/apps/chronos/locale/nb_NO/LC_MESSAGES/django.po
+++ b/biscuit/apps/chronos/locale/nb_NO/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-09-15 14:11+0200\n"
+"POT-Creation-Date: 2019-09-17 15:42+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -146,7 +146,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: templates/chronos/lessons_day.html:7 views.py:130
+#: templates/chronos/lessons_day.html:7
 msgid "Lessons"
 msgstr ""
 
@@ -158,18 +158,23 @@ msgstr ""
 msgid "Times"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "Kalenderwoche"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "to"
 msgstr ""
 
-#: views.py:164
+#: views.py:130
+#, python-format
+msgid "Lessons %s"
+msgstr ""
+
+#: views.py:166
 msgid "The substitution has been saved."
 msgstr ""
 
-#: views.py:183
+#: views.py:185
 msgid "The substitution has been deleted."
 msgstr ""
diff --git a/biscuit/apps/chronos/locale/tr_TR/LC_MESSAGES/django.po b/biscuit/apps/chronos/locale/tr_TR/LC_MESSAGES/django.po
index f4f2f09b0e28326b127c90b48bb85411408f0aad..82f1020b0933da1b966a83538497b0fe0c397f50 100644
--- a/biscuit/apps/chronos/locale/tr_TR/LC_MESSAGES/django.po
+++ b/biscuit/apps/chronos/locale/tr_TR/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-09-15 14:11+0200\n"
+"POT-Creation-Date: 2019-09-17 15:42+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -146,7 +146,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: templates/chronos/lessons_day.html:7 views.py:130
+#: templates/chronos/lessons_day.html:7
 msgid "Lessons"
 msgstr ""
 
@@ -158,18 +158,23 @@ msgstr ""
 msgid "Times"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "Kalenderwoche"
 msgstr ""
 
-#: util.py:40
+#: util.py:55
 msgid "to"
 msgstr ""
 
-#: views.py:164
+#: views.py:130
+#, python-format
+msgid "Lessons %s"
+msgstr ""
+
+#: views.py:166
 msgid "The substitution has been saved."
 msgstr ""
 
-#: views.py:183
+#: views.py:185
 msgid "The substitution has been deleted."
 msgstr ""