diff --git a/homeassistant/components/worldclock/config_flow.py b/homeassistant/components/worldclock/config_flow.py
index a9598c049aa..eebf0d59dcb 100644
--- a/homeassistant/components/worldclock/config_flow.py
+++ b/homeassistant/components/worldclock/config_flow.py
@@ -28,11 +28,11 @@ TIME_STR_OPTIONS = [
     SelectOptionDict(
         value=DEFAULT_TIME_STR_FORMAT, label=f"14:05 ({DEFAULT_TIME_STR_FORMAT})"
     ),
-    SelectOptionDict(value="%I:%M %p", label="11:05 am (%I:%M %p)"),
+    SelectOptionDict(value="%I:%M %p", label="11:05 AM (%I:%M %p)"),
     SelectOptionDict(value="%Y-%m-%d %H:%M", label="2024-01-01 14:05 (%Y-%m-%d %H:%M)"),
     SelectOptionDict(
         value="%a, %b %d, %Y %I:%M %p",
-        label="Monday, Jan 01, 2024 11:05 am (%a, %b %d, %Y %I:%M %p)",
+        label="Mon, Jan 01, 2024 11:05 AM (%a, %b %d, %Y %I:%M %p)",
     ),
 ]