diff --git a/src/datetime-picker/TimePicker.js b/src/datetime-picker/TimePicker.js
index cc26d680d..df04b6290 100644
--- a/src/datetime-picker/TimePicker.js
+++ b/src/datetime-picker/TimePicker.js
@@ -108,6 +108,8 @@ export default createComponent({
 
       this.$nextTick(() => {
         this.$nextTick(() => {
+          // https://github.com/youzan/vant/issues/9775
+          this.updateInnerValue();
           this.$emit('change', picker);
         });
       });