diff --git a/packages/next-admin/src/components/inputs/DateTimeWidget.tsx b/packages/next-admin/src/components/inputs/DateTimeWidget.tsx
index be80e9b2..2e32f181 100644
--- a/packages/next-admin/src/components/inputs/DateTimeWidget.tsx
+++ b/packages/next-admin/src/components/inputs/DateTimeWidget.tsx
@@ -23,7 +23,7 @@ export default function DateTimeWidget<
   const BaseInputTemplate = getTemplate<'BaseInputTemplate', T, S, F>('BaseInputTemplate', registry, options);
 
   const hiddenValue = useMemo(() => {
-    return new Date(value).toISOString()
+    return value ? new Date(value).toISOString() : new Date().toISOString()
   }, [value])
 
   return (