diff --git a/core/core-frontend/src/custom-component/v-query/Time.vue b/core/core-frontend/src/custom-component/v-query/Time.vue
index 5322378bf8..5a9dbe9561 100644
--- a/core/core-frontend/src/custom-component/v-query/Time.vue
+++ b/core/core-frontend/src/custom-component/v-query/Time.vue
@@ -345,7 +345,10 @@ const disabledDate = val => {
   const startValue = regularOrTrends === 'fixed' ? regularOrTrendsValue : startTime
 
   if (intervalType === 'start') {
-    return timeStamp < +new Date(startValue) || isDynamicWindowTime
+    return (
+      timeStamp < +new Date(dayjs(startValue).startOf('day').format('YYYY/MM/DD HH:mm:ss')) ||
+      isDynamicWindowTime
+    )
   }
 
   if (intervalType === 'end') {