diff --git a/packages/angular/standalone/src/directives/datetime.ts b/packages/angular/standalone/src/directives/datetime.ts
index 94af3a1090..ee35d079e6 100644
--- a/packages/angular/standalone/src/directives/datetime.ts
+++ b/packages/angular/standalone/src/directives/datetime.ts
@@ -24,6 +24,7 @@ const DATETIME_INPUTS = [
   'disabled',
   'doneText',
   'firstDayOfWeek',
+  'formatOptions',
   'highlightedDates',
   'hourCycle',
   'hourValues',