harmony 鸿蒙TimeService

2025-06-12
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TimeService

Overview

Enables the application to obtain the time and time zone information.

Since: 12

Summary

File

Name	Description
time_service.h	Declares the API for obtaining the time and time zone information.

Types

Name	Description
typedef enum TimeService_ErrCode TimeService_ErrCode	Enumerates the error codes.

Enums

Name	Description
TimeService_ErrCode { TIMESERVICE_ERR_OK = 0, TIMESERVICE_ERR_INTERNAL_ERROR = 13000001, TIMESERVICE_ERR_INVALID_PARAMETER = 13000002 }	Enumerates the error codes.

Functions

Name	Description
TimeService_ErrCode OH_TimeService_GetTimeZone (char *timeZone, uint32_t len)	Returns the current system time zone.

Type Description

TimeService_ErrCode

typedef enum TimeService_ErrCode TimeService_ErrCode

Description

Enumerates the error codes.

Since: 12

Enum Description

TimeService_ErrCode

enum TimeService_ErrCode

Description

Enumerates the error codes.

Since: 12

Value	Description
TIMESERVICE_ERR_OK	Obtains system parameters.
TIMESERVICE_ERR_INTERNAL_ERROR	Fails to obtain system parameters.
TIMESERVICE_ERR_INVALID_PARAMETER	Invalid parameter.

Function Description

OH_TimeService_GetTimeZone()

TimeService_ErrCode OH_TimeService_GetTimeZone (char * timeZone, uint32_t len )

Description

Returns the current system time zone.

System capability: SystemCapability.MiscServices.Time

Since: 12

Parameters

Name	Description
timeZone	A character array of time zone ID. If the time zone is obtained, the time zone ID string of the current system is written. Otherwise, an empty string is written. The string ends with \0.
len	Length of a character array of time zone ID without maximum limit. You are advised to apply for sufficient memory for at less 31 bytes.

Returns

TIMESERVICE_ERR_OK: The system parameters are obtained.

TIMESERVICE_ERR_INTERNAL_ERROR: The system parameters fail to be obtained.

TIMESERVICE_ERR_INVALID_PARAMETER: The time zone is null or the length of the time zone name (excluding the end character \0) is greater than or equal to len.