Update docs (21645)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/apis/js-apis-base.md

@@ -40,7 +40,7 @@ ErrorCallback\<T extends Error = BusinessError> {
 
 Defines a common callback that carries an error parameter.
 
-The error parameter is of the [BusinessError](#businesserror) type.
+The information returned by the callback is of the [BusinessError](#businesserror) type.
 
 **System capability**: SystemCapability.Base
 
@@ -68,7 +68,7 @@ The type of the asynchronous return value is defined by the developer.
 
 | Name| Type                                                        | Mandatory| Description                        |
 | ---- | ------------------------------------------------------------ | ---- | ---------------------------- |
-| err  | [BusinessError](https://gitee.com/openharmony/docs/pulls/20172/files#businesserror) | Yes  | Common error information about the API invoking failure.|
+| err  | [BusinessError](#businesserror) | Yes  | Common error information about the API invoking failure.|
 | data | T                                                            | Yes  | Common callback information.  |
 
 ## BusinessError

en/application-dev/reference/apis/js-apis-system-date-time.md

@@ -22,6 +22,8 @@ Sets the system time. This API uses an asynchronous callback to return the resul
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME
+
 **Parameters**
 
 | Name  | Type           | Mandatory| Description                                      |
@@ -57,6 +59,8 @@ Sets the system time. This API uses a promise to return the result.
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME
+
 **Parameters**
 
 | Name| Type  | Mandatory| Description              |
@@ -158,7 +162,7 @@ Obtains the time elapsed since the Unix epoch. This API uses a promise to return
 
 | Name| Type   | Mandatory| Description                    |
 | ------ | ------- | ---- | ------------------------- |
-| isNano | boolean | No  | Whether the time to return is in nanoseconds.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
+| isNano | boolean | No  | Whether the time to return is in nanoseconds. The default value is **false**.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
 
 **Return value**
 
@@ -253,7 +257,7 @@ Obtains the time elapsed since system startup, excluding the deep sleep time. Th
 
 | Name| Type   | Mandatory| Description                             |
 | ------ | ------- | ---- | ----------------------------------- |
-| isNano | boolean | No  | Whether the time to return is in nanoseconds.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
+| isNano | boolean | No  | Whether the time to return is in nanoseconds. The default value is **false**.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
 
 **Return value**
 
@@ -348,7 +352,7 @@ Obtains the time elapsed since system startup, including the deep sleep time. Th
 
 | Name| Type   | Mandatory| Description                              |
 | ------ | ------- | ---- | ------------------------------- |
-| isNano | boolean | No  | Whether the time to return is in nanoseconds.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
+| isNano | boolean | No  | Whether the time to return is in nanoseconds. The default value is **false**.<br>- **true**: The time to return is in nanoseconds.<br>- **false**: The time to return is in milliseconds.|
 
 **Return value**
 
@@ -380,6 +384,8 @@ Sets the system date. This API uses an asynchronous callback to return the resul
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME
+
 **Parameters**
 
 | Name  | Type                     | Mandatory| Description            |
@@ -414,6 +420,8 @@ Sets the system date. This API uses a promise to return the result.
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME
+
 **Parameters**
 
 | Name| Type| Mandatory| Description      |
@@ -509,6 +517,8 @@ Sets the system time zone. This API uses an asynchronous callback to return the
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME_ZONE
+
 **Parameters**
 
 | Name  | Type             | Mandatory| Description                 |
@@ -542,6 +552,8 @@ Sets the system time zone. This API uses a promise to return the result.
 
 **System capability**: SystemCapability.MiscServices.Time
 
+**Required permissions**: ohos.permission.SET_TIME_ZONE
+
 **Parameters**
 
 | Name  | Type  | Mandatory| Description      |

en/application-dev/reference/apis/js-apis-system-timer.md

@@ -36,8 +36,8 @@ Defines the initialization options for **createTimer**.
 | Name     | Type                                         | Mandatory| Description                                                        |
 | --------- | --------------------------------------------- | ---- | ------------------------------------------------------------ |
 | type      | number                                        | Yes  | Timer type.<br>**1**: CPU time type. (The start time of the timer cannot be later than the current system time.)<br>**2**: wakeup type.<br>**4**: exact type.<br>**8**: idle type (not supported currently).|
-| repeat    | boolean                                       | Yes  | Whether the timer is a repeating timer. The value **true** means that the timer is a repeating timer, and **false** means that the timer is a one-shot timer.                       |
-| interval  | number                                        | No  | Repeat interval. For a repeating timer, the value must be greater than 5000 ms. For a one-shot timer, the value is **0**.|
+| repeat    | boolean                                       | Yes  | Whether the timer is a repeating timer.<br>The value **true** means that the timer is a repeating timer, and **false** means that the timer is a one-shot timer.                       |
+| interval  | number                                        | No  | Repeat interval.<br>For a repeating timer, the value must be greater than 5000 ms. For a one-shot timer, the value is **0**.|
 | wantAgent | [WantAgent](js-apis-app-ability-wantAgent.md) | No  | **WantAgent** object of the notification to be sent when the timer expires. (An application MainAbility can be started, but not a Service ability.)|
 | callback  | number                                        | Yes  | Callback used to return the timer ID.                            |
 
@@ -48,8 +48,6 @@ createTimer(options: TimerOptions, callback: AsyncCallback&lt;number&gt;): void
 
 Creates a timer. This API uses an asynchronous callback to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -89,7 +87,6 @@ createTimer(options: TimerOptions): Promise&lt;number&gt;
 
 Creates a timer. This API uses a promise to return the result.
 
-**System API**: This is a system API.
 
 **System capability**: SystemCapability.MiscServices.Time
 
@@ -133,8 +130,6 @@ startTimer(timer: number, triggerTime: number, callback: AsyncCallback&lt;void&g
 
 Starts a timer. This API uses an asynchronous callback to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -178,8 +173,6 @@ startTimer(timer: number, triggerTime: number): Promise&lt;void&gt;
 
 Starts a timer. This API uses a promise to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -226,8 +219,6 @@ stopTimer(timer: number, callback: AsyncCallback&lt;void&gt;): void
 
 Stops a timer. This API uses an asynchronous callback to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -271,8 +262,6 @@ stopTimer(timer: number): Promise&lt;void&gt;
 
 Stops a timer. This API uses a promise to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -319,8 +308,6 @@ destroyTimer(timer: number, callback: AsyncCallback&lt;void&gt;): void
 
 Destroys a timer. This API uses an asynchronous callback to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**
@@ -365,8 +352,6 @@ destroyTimer(timer: number): Promise&lt;void&gt;
 
 Destroys a timer. This API uses a promise to return the result.
 
-**System API**: This is a system API.
-
 **System capability**: SystemCapability.MiscServices.Time
 
 **Parameters**