diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/common/MPPQueryContext.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/common/MPPQueryContext.java
index 13773c150906c..cc9ad82d01aa5 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/common/MPPQueryContext.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/common/MPPQueryContext.java
@@ -189,7 +189,10 @@ public QueryType getQueryType() {
     return queryType;
   }
 
-  /** the max executing time of query in ms. Unit: millisecond */
+  /**
+   * Returns the total query timeout in milliseconds, measured from {@link #getStartTime()}. This
+   * value never represents the remaining timeout.
+   */
   public long getTimeOut() {
     return timeOut;
   }
diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/QueryExecution.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/QueryExecution.java
index 5af143bfca83f..918538b06d2dc 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/QueryExecution.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/QueryExecution.java
@@ -176,10 +176,6 @@ public void start() {
     doLogicalPlan();
     doDistributedPlan();
 
-    // update timeout after finishing plan stage
-    context.setTimeOut(
-        context.getTimeOut() - (System.currentTimeMillis() - context.getStartTime()));
-
     stateMachine.transitionToPlanned();
     if (context.getQueryType() == QueryType.READ) {
       initResultHandle();