From 428c05f62a2098a698837e528c76ba60daa0077e Mon Sep 17 00:00:00 2001
From: Chris Heinz <chrisi.heinz@web.de>
Date: Thu, 10 Oct 2024 10:20:57 +0200
Subject: [PATCH] fix: change default fallback value to undefined

---
 .../dates/src/components/DateTimePicker/DateTimePicker.tsx      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/@mantine/dates/src/components/DateTimePicker/DateTimePicker.tsx b/packages/@mantine/dates/src/components/DateTimePicker/DateTimePicker.tsx
index 0947faf8a5c..94539e930c5 100644
--- a/packages/@mantine/dates/src/components/DateTimePicker/DateTimePicker.tsx
+++ b/packages/@mantine/dates/src/components/DateTimePicker/DateTimePicker.tsx
@@ -142,7 +142,7 @@ export const DateTimePicker = factory<DateTimePickerFactory>((_props, ref) => {
   });
 
   const formatTime = (dateValue: Date) =>
-    dateValue ? dayjs(dateValue).format(withSeconds ? 'HH:mm:ss' : 'HH:mm') : '';
+    dateValue ? dayjs(dateValue).format(withSeconds ? 'HH:mm:ss' : 'HH:mm') : undefined;
 
   const [timeValue, setTimeValue] = useState(formatTime(_value!));
   const [currentLevel, setCurrentLevel] = useState(level || defaultLevel || 'month');