diff --git a/specification/esql/async_query/AsyncQueryRequest.ts b/specification/esql/async_query/AsyncQueryRequest.ts
index 55c74a676f..daff6fdfee 100644
--- a/specification/esql/async_query/AsyncQueryRequest.ts
+++ b/specification/esql/async_query/AsyncQueryRequest.ts
@@ -91,8 +91,8 @@ export interface Request extends RequestBase {
     filter?: QueryContainer
     /**
      * Sets the default timezone of the query.
-     * @availability stack since=9.4.0 stability=experimental
-     * @availability serverless stability=experimental
+     * @availability stack since=9.4.0 stability=stable
+     * @availability serverless stability=stable
      * @doc_id esql-timezones
      */
     time_zone?: string
diff --git a/specification/esql/query/QueryRequest.ts b/specification/esql/query/QueryRequest.ts
index 0fbeb355c1..84a6c47366 100644
--- a/specification/esql/query/QueryRequest.ts
+++ b/specification/esql/query/QueryRequest.ts
@@ -85,8 +85,8 @@ export interface Request extends RequestBase {
     filter?: QueryContainer
     /**
      * Sets the default timezone of the query.
-     * @availability stack since=9.4.0 stability=experimental
-     * @availability serverless stability=experimental
+     * @availability stack since=9.4.0 stability=stable
+     * @availability serverless stability=stable
      * @doc_id esql-timezones
      */
     time_zone?: string