diff --git a/interfaces/kits/js/declaration/api/@ohos.systemTime.d.ts b/interfaces/kits/js/declaration/api/@ohos.systemTime.d.ts
index 70037ed..9071438 100644
--- a/interfaces/kits/js/declaration/api/@ohos.systemTime.d.ts
+++ b/interfaces/kits/js/declaration/api/@ohos.systemTime.d.ts
@@ -31,6 +31,7 @@ declare namespace systemTime {
      */
     function setTime(time : number, callback : AsyncCallback<void>) : void;
     function setTime(time : number) : Promise<void>;
+
     /**
      * Obtains the number of milliseconds that have elapsed since the Unix epoch.
      * @since 8
diff --git a/interfaces/kits/js/declaration/api/@ohos.systemtimer.d.ts b/interfaces/kits/js/declaration/api/@ohos.systemtimer.d.ts
index 3246cb4..987f906 100644
--- a/interfaces/kits/js/declaration/api/@ohos.systemtimer.d.ts
+++ b/interfaces/kits/js/declaration/api/@ohos.systemtimer.d.ts
@@ -12,6 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 import { AsyncCallback, ErrorCallback } from './basic';
 import { WantAgent } from './@ohos.wantAgent';
 
@@ -45,51 +46,48 @@ declare namespace systemTimer {
 
   /**
    * Creates a timer.
-   * @since 7
    * @Param options Indicates the timer options.
    * @Return timer ID.
-   * 
-   * @systemapi Hide this for inner system use.
    */
   function createTimer(options: TimerOptions, callback: AsyncCallback<number>): void;
   function createTimer(options: TimerOptions): Promise<number>;
 
   /**
    * Starts a timer.
-   *@since 7
+   *
    * @Param timer The timer ID.
    * @Param triggerTime Indicates the time at which the timer is triggered for the first time, in milliseconds.
-   * The time will be automatically set to 5000 milliseconds after the current time if the passed
-   * value is smaller than the current time plus 5000 milliseconds.
-   * @systemapi Hide this for inner system use.
+   *                    The time will be automatically set to 5000 milliseconds after the current time if the passed
+   *                    value is smaller than the current time plus 5000 milliseconds.
    */
   function startTimer(timer: number, triggerTime: number, callback: AsyncCallback<void>): void;
   function startTimer(timer: number, triggerTime: number): Promise<void>;
 
   /**
    * Stops a timer.
-   * @since 7
    * @Param timer The timer ID.
-   * @systemapi Hide this for inner system use.
    */
-  function stopTimer(timer: number, callback: AsyncCallback<void>):  void;
+  function stopTimer(timer: number, callback: AsyncCallback<void>): void;
   function stopTimer(timer: number): Promise<void>;
 
   /**
-   * Clears a timer.
-   * @since 7
+   * Destroy a timer.
    * @Param timer The timer ID.
-   * @systemapi Hide this for inner system use.
    */
   function destroyTimer(timer: number, callback: AsyncCallback<void>): void;
   function destroyTimer(timer: number): Promise<void>;
 
+    /**
+     * When the repeat is false,the interval is not needed, choose one of wantAgent and callback.
+     * When the repeat is true,the interval is required, the wantAgent is required, and the callback can be left blank.
+     *
+     */
   interface TimerOptions {
     /**
      * timer type.
      */
     type: number;
-    
+
     /**
      * Indicates a repeating timer
      */
diff --git a/interfaces/kits/js/napi/system_time/src/js_systemtime.cpp b/interfaces/kits/js/napi/system_time/src/js_systemtime.cpp
index 97ae0dc..cbeda24 100644
--- a/interfaces/kits/js/napi/system_time/src/js_systemtime.cpp
+++ b/interfaces/kits/js/napi/system_time/src/js_systemtime.cpp
@@ -732,7 +732,7 @@ napi_value SystemTimeExport(napi_env env, napi_value exports)
         DECLARE_NAPI_FUNCTION("getRealTime", JSSystemTimeGetRealTime),
         DECLARE_NAPI_FUNCTION("getRealTimeNs", JSSystemTimeGetRealTimeNs),
         DECLARE_NAPI_FUNCTION("getDate", JSSystemTimeGetDate),
-        DECLARE_NAPI_FUNCTION("getTimeZone", JSSystemTimeGetTimeZone),
+        DECLARE_NAPI_FUNCTION("getTimezone", JSSystemTimeGetTimeZone),
     };
     NAPI_CALL(env, napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc));
     return exports;