diff --git a/src/DateHandler/_DateUtils.py b/src/DateHandler/_DateUtils.py
index 9bd4ec5fe..3bc026101 100644
--- a/src/DateHandler/_DateUtils.py
+++ b/src/DateHandler/_DateUtils.py
@@ -85,7 +85,9 @@ def get_calendar_formats():
     """
     Return the list of supported calendars.
     """
-    try:
-        return LANG_TO_DISPLAY[LANG].calendar
-    except:
-        return LANG_TO_DISPLAY["C"].calendar
+    cal = []
+
+    for calendar in gen.lib.date.Date.ui_calendar_names:
+        cal.append(calendar)
+        
+    return cal