diff --git a/kosmorro/exceptions.py b/kosmorro/exceptions.py
index c5e5ca3..1a5e46d 100644
--- a/kosmorro/exceptions.py
+++ b/kosmorro/exceptions.py
@@ -18,7 +18,7 @@
 
 from datetime import date
 from babel.dates import format_date
-from kosmorro.i18n.utils import _, SHORT_DATE_FORMAT
+from kosmorro.i18n.utils import _
 
 
 class UnavailableFeatureError(RuntimeError):
diff --git a/kosmorro/i18n/utils.py b/kosmorro/i18n/utils.py
index b65d525..a1a3f47 100644
--- a/kosmorro/i18n/utils.py
+++ b/kosmorro/i18n/utils.py
@@ -24,17 +24,6 @@ _TRANSLATION = gettext.translation("messages", localedir=_LOCALE_DIR, fallback=T
 
 _ = _TRANSLATION.gettext
 
-FULL_DATE_FORMAT = _("{day_of_week} {month} {day_number}, {year}").format(
-    day_of_week="%A", month="%B", day_number="%d", year="%Y"
-)
-SHORT_DATETIME_FORMAT = _("{month} {day_number}, {hours}:{minutes}").format(
-    month="%b", day_number="%d", hours="%H", minutes="%M"
-)
-SHORT_DATE_FORMAT = _("{month} {day_number}, {year}").format(
-    month="%b", day_number="%d", year="%Y"
-)
-TIME_FORMAT = _("{hours}:{minutes}").format(hours="%H", minutes="%M")
-
 
 def ngettext(msgid1, msgid2, number):
     # Not using ngettext = _TRANSLATION.ngettext because the linter will give an invalid-name error otherwise
diff --git a/kosmorro/locales/messages.pot b/kosmorro/locales/messages.pot
index 9eedb9b..fca0dbf 100644
--- a/kosmorro/locales/messages.pot
+++ b/kosmorro/locales/messages.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2025-10-19 16:46+0200\n"
+"POT-Creation-Date: 2025-11-03 18:23+0100\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"
@@ -391,23 +391,3 @@ msgstr ""
 msgid "Pluto"
 msgstr ""
 
-#: kosmorro/i18n/utils.py:27
-#, python-brace-format
-msgid "{day_of_week} {month} {day_number}, {year}"
-msgstr ""
-
-#: kosmorro/i18n/utils.py:30
-#, python-brace-format
-msgid "{month} {day_number}, {hours}:{minutes}"
-msgstr ""
-
-#: kosmorro/i18n/utils.py:33
-#, python-brace-format
-msgid "{month} {day_number}, {year}"
-msgstr ""
-
-#: kosmorro/i18n/utils.py:36
-#, python-brace-format
-msgid "{hours}:{minutes}"
-msgstr ""
-