harmony 鸿蒙@ohos.enterprise.dateTimeManager (System Time Management) (System API)

2025-06-12
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@ohos.enterprise.dateTimeManager (System Time Management) (System API)

The dateTimeManager module provides APIs for system time management.

NOTE

The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.

The APIs of this module can be used only in the stage model.

The APIs of this module can be called only by a device administrator application that is enabled.

The APIs provided by this module are system APIs.

Modules to Import

import { dateTimeManager } from '@kit.MDMKit';

dateTimeManager.setDateTime

setDateTime(admin: Want, time: number, callback: AsyncCallback<void>): void

Sets the system time. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.
time	number	Yes	Timestamp to set, in ms.
callback	AsyncCallback<void>	Yes	Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.setDateTime(wantTemp, 1526003846000, (err) => {
  if (err) {
    console.error(`Failed to set date time. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info('Succeeded in setting date time');
})

dateTimeManager.setDateTime

setDateTime(admin: Want, time: number): Promise<void>

Sets the system time. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.
time	number	Yes	Timestamp to set, in ms.

Return value

Type	Description
Promise<void>	Promise that returns no value.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.setDateTime(wantTemp, 1526003846000).then(() => {
  console.info('Succeeded in setting date time');
}).catch((err: BusinessError) => {
  console.error(`Failed to set date time. Code is ${err.code}, message is ${err.message}`);
})

dateTimeManager.disallowModifyDateTime¹⁰⁺

disallowModifyDateTime(admin: Want, disallow: boolean, callback: AsyncCallback<void>): void

Disallows the device to modify the system time. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.
disallow	boolean	Yes	Whether to disallow modification of the system time. The value true means to disallow modification of the system time, and false means the opposite.
callback	AsyncCallback<void>	Yes	Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.disallowModifyDateTime(wantTemp, true, (err) => {
  if (err) {
    console.error(`Failed to disallow modify date time. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info('Succeeded in disallowing modify date time');
})

dateTimeManager.disallowModifyDateTime¹⁰⁺

disallowModifyDateTime(admin: Want, disallow: boolean): Promise<void>

Disallows the device to modify the system time. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.
disallow	boolean	Yes	Whether to disallow modification of the system time. The value true means to disallow modification of the system time, and false means the opposite.

Return value

Type	Description
Promise<void>	Promise that returns no value. An error object is thrown when the device fails to modify the system time.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.disallowModifyDateTime(wantTemp, true).then(() => {
  console.info('Succeeded in disallowing modify date time');
}).catch((err: BusinessError) => {
  console.error(`Failed to disallow modify date time. Code is ${err.code}, message is ${err.message}`);
})

dateTimeManager.isModifyDateTimeDisallowed¹⁰⁺

isModifyDateTimeDisallowed(admin: Want, callback: AsyncCallback<boolean>): void

Queries whether the system time of a device can be modified. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.
callback	AsyncCallback<boolean>	Yes	Callback invoked to return the result. The value true means the system time modification is disallowed, and false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.isModifyDateTimeDisallowed(wantTemp, (err, result) => {
  if (err) {
    console.error(`Failed to query modify date time is disallowed or not. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info(`Succeeded in querying modify date time is disallowed : ${result}`);
})

dateTimeManager.isModifyDateTimeDisallowed¹⁰⁺

isModifyDateTimeDisallowed(admin: Want): Promise<boolean>

Queries whether the system time of a device can be modified. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME

System capability: SystemCapability.Customization.EnterpriseDeviceManager

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	EnterpriseAdminExtensionAbility.

Return value

Type	Description
Promise<boolean>	Promise used to return the result. The value true means the system time modification is disallowed, and false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes and Universal Error Codes.

ID	Error Message
9200001	The application is not an administrator application of the device.
9200002	The administrator application does not have permission to manage the device.
201	Permission verification failed. The application does not have the permission required to call the API.
202	Permission verification failed. A non-system application calls a system API.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.

Example

import { Want } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';
let wantTemp: Want = {
  bundleName: 'com.example.myapplication',
  abilityName: 'EntryAbility',
};

dateTimeManager.isModifyDateTimeDisallowed(wantTemp).then((result) => {
  console.info(`Succeeded in querying modify date time is disallowed : ${result}`);
}).catch((err: BusinessError) => {
  console.error(`Failed to query modify date time is disallowed or not. Code is ${err.code}, message is ${err.message}`);
})