Determine Time Zone Offset in T-SQL

Question

My database application is going to be deployed at multiple sites in different time zones.

I need a T-SQL function that will determine the UTC timestamp of midnight

Answer 1

Unless I'm mistaken, the GETUTCDATE() function uses the time zone defined on the server - it has no information regarding the client's time zone (or any time zone). I don't think that information is stored anywhere in SQL Server 2005, which makes it impossible for it to calculate this information.

Maybe you could 'borrow' the data from Oracle's time zone file and build your own SQL Server function?

Off topic (could be useful to someone else) but if you were using Oracle, you could use the FROM_TZ function and 'AT TIME ZONE':

FROM_TZ(YOUR_TIMESTAMP, 'UTC') AT TIME ZONE 'America/Dawson_Creek'