Delivery of reports with different local timezone convert from UTC time

Question

I have a central database storing events with UTC time (current location is Europe). I have a request to send historical reports (e.g Aug 2013 report) to US, Asia and I required to convert the UTC time to US and Asia when generating reports. I am thinking
the best way of design the dimension table, shall I have a history timezone table to match the utc time id with US and Asian timezone in order to do the historical report time conversion , considering the daylight saving condition as well. Any suggestions
are welcome. Thanks.

Answer 1

What version of SQL Server you are using? How do you generate reports? If it is SQL Server 2012 take a look at
--Retrieve the current time as a datetimeoffset (comparable to the venerable GETDATE function):
                SELECT SYSDATETIMEOFFSET()
---Retrieve the server’s current time zone offset (the number of minutes before or after UTC):
                SELECT DATENAME (TZoffset, SYSDATETIMEOFFSET())
---Convert from datetime to datetimeoffset (note that this uses the server’s current time zone offset, which could be inappropriate for historical dates):
                SELECT TODATETIMEOFFSET (datetimevalue, DATENAME (TZoffset, SYSDATETIMEOFFSET()))
---Convert a datetimeoffset value (in this case, local server time returned by SYSDATETIMEOFFSET) to a new time zone offset:
                SELECT SWITCHOFFSET (SYSDATETIMEOFFSET(), '-05:00')
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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