there are a couple of ways you can do this depending on how accurate you want the date and also weather it must be local server time or not
SELECT SYSDATETIME() as [SYSDATETIME]
,SYSDATETIMEOFFSET() as [SYSDATETIMEOFFSET]
,SYSUTCDATETIME() as [SYSUTCDATETIME]
,CURRENT_TIMESTAMP as [CURRENT_TIMESTAMP]
,GETDATE() as [GETDATE]
,GETUTCDATE() as [GETUTCDATE];