diff --git a/api/@ohos.systemTime.d.ts b/api/@ohos.systemTime.d.ts
index ef8856074dcafb4a0be901e19ee73cccc5492e30..594fc69e16feb9b179c70c1992b2aa498d0119c0 100755
--- a/api/@ohos.systemTime.d.ts
+++ b/api/@ohos.systemTime.d.ts
@@ -28,31 +28,24 @@ declare namespace systemTime {
      * @param time Target time stamp (ms)
      * @since 7
      */
-    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
      */
-    function getCurrentTime(isNano: boolean, callback: AsyncCallback<number>): void;
-    function getCurrentTime(callback: AsyncCallback<number>): void;
     function getCurrentTime(isNano?: boolean): Promise<number>;
 
     /**
      * Obtains the number of milliseconds elapsed since the system was booted, not including deep sleep time.
      * @since 8
      */
-    function getRealActiveTime(isNano: boolean, callback: AsyncCallback<number>): void;
-    function getRealActiveTime(callback: AsyncCallback<number>): void;
     function getRealActiveTime(isNano?: boolean): Promise<number>;
 
     /**
      * Obtains the number of milliseconds elapsed since the system was booted, including deep sleep time.
      * @since 8
      */
-    function getRealTime(isNano: boolean, callback: AsyncCallback<number>): void;
-    function getRealTime(callback: AsyncCallback<number>): void;
     function getRealTime(isNano?: boolean): Promise<number>;
 
     /**
@@ -61,14 +54,12 @@ declare namespace systemTime {
      * @param date The target date
      * @since 7
      */
-    function setDate(date: Date, callback: AsyncCallback<void>): void;
     function setDate(date: Date): Promise<void>;
 
     /**
      * Obtains the system date.
      * @since 8
      */
-    function getDate(callback: AsyncCallback<Date>): void;
     function getDate(): Promise<Date>;
 
     /**
@@ -77,14 +68,12 @@ declare namespace systemTime {
      * @param timezone The system time zone
      * @since 7
      */
-    function setTimezone(timezone: string, callback: AsyncCallback<void>): void;
     function setTimezone(timezone: string): Promise<void>;
 
       /**
      * Obtains the system time zone.
      * @since 8
-     */  
-    function getTimezone(callback: AsyncCallback<string>): void;
+     */
     function getTimezone(): Promise<string>;
 }