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Applies to:
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
SQL analytics endpoint in Microsoft Fabric
Warehouse in Microsoft Fabric
Returns a datetime2(7) value that contains the date and time of the computer on which the instance of SQL Server is running.
Note
SYSDATETIME and SYSUTCDATETIME have more fractional seconds precision than GETDATE and GETUTCDATE. SYSDATETIMEOFFSET includes the system time zone offset. SYSDATETIME, SYSUTCDATETIME, and SYSDATETIMEOFFSET can be assigned to a variable of any of the date and time types.
Azure SQL Database (with the exception of Azure SQL Managed Instance) and Azure Synapse Analytics follow UTC. Use AT TIME ZONE in Azure SQL Database or Azure Synapse Analytics if you need to interpret date and time information in a non-UTC time zone.
For an overview of all Transact-SQL date and time data types and functions, see Date and Time Data Types and Functions (Transact-SQL).
Transact-SQL syntax conventions
SYSDATETIME ( )
datetime2(7)
Transact-SQL statements can refer to SYSDATETIME anywhere they can refer to a datetime2(7) expression.
SYSDATETIME is a nondeterministic function. Views and expressions that reference this function in a column cannot be indexed.
Note
SQL Server obtains the date and time values by using the GetSystemTimeAsFileTime() Windows API. The accuracy depends on the computer hardware and version of Windows on which the instance of SQL Server is running. The precision of this API is fixed at 100 nanoseconds. The accuracy can be determined by using the GetSystemTimeAdjustment() Windows API.
The following examples use the six SQL Server system functions that return current date and time to return the date, time or both. The values are returned in series; therefore, their fractional seconds might be different.
SELECT SYSDATETIME()
,SYSDATETIMEOFFSET()
,SYSUTCDATETIME()
,CURRENT_TIMESTAMP
,GETDATE()
,GETUTCDATE();
/* Returned:
SYSDATETIME() 2007-04-30 13:10:02.0474381
SYSDATETIMEOFFSET()2007-04-30 13:10:02.0474381 -07:00
SYSUTCDATETIME() 2007-04-30 20:10:02.0474381
CURRENT_TIMESTAMP 2007-04-30 13:10:02.047
GETDATE() 2007-04-30 13:10:02.047
GETUTCDATE() 2007-04-30 20:10:02.047
*/
SELECT CONVERT (date, SYSDATETIME())
,CONVERT (date, SYSDATETIMEOFFSET())
,CONVERT (date, SYSUTCDATETIME())
,CONVERT (date, CURRENT_TIMESTAMP)
,CONVERT (date, GETDATE())
,CONVERT (date, GETUTCDATE());
/* All returned 2007-04-30 */
SELECT CONVERT (time, SYSDATETIME())
,CONVERT (time, SYSDATETIMEOFFSET())
,CONVERT (time, SYSUTCDATETIME())
,CONVERT (time, CURRENT_TIMESTAMP)
,CONVERT (time, GETDATE())
,CONVERT (time, GETUTCDATE());
/* Returned
SYSDATETIME() 13:18:45.3490361
SYSDATETIMEOFFSET()13:18:45.3490361
SYSUTCDATETIME() 20:18:45.3490361
CURRENT_TIMESTAMP 13:18:45.3470000
GETDATE() 13:18:45.3470000
GETUTCDATE() 20:18:45.3470000
*/
SELECT SYSDATETIME();
Here's the result set.
--------------------------
7/20/2013 2:49:59 PM
CAST and CONVERT (Transact-SQL)
Date and Time Data Types and Functions (Transact-SQL)
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