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CONVERT(DATETIMEOFFSET -- assuming all servers are on CEST time ,@dt AT TIME ZONE 'Central European Standard Time' AT TIME ZONE 'UTC')

If you’re stuck on a lower version of SQL Server, I’d suggest you upgrade 🙂 Or maybe create a table with all the start and end dates of daylight savings time for each year, so you can easily look up the offset.

UPDATE:

Turns out the conversion to DATETIMEOFFSET isn’t even necessary, which makes the code even shorter:

DECLARE @dt DATETIME = '2020-02-22 22:23:13.920';
SELECT CONVERT(DATETIME,
			    @dt AT TIME ZONE 'Central European Standard Time'
				    AT TIME ZONE 'UTC');

Thanks to Adam for pointing it out!

------------------------------------------------ Do you like this blog post? You can thank me by buying me a beer 🙂

Thanks for this useful information. So the CONVERT is also not needed! No data types are being converted to or from DATETIME here 🙂 This is exactly the same, and simpler:

DECLARE @dt DATETIME = ‘2020-02-22 22:23:13.920’;
SELECT @dt AT TIME ZONE ‘Central European Standard Time’ AT TIME ZONE ‘UTC’;

Hello, Great post. We have a situation where we the timezone can be different for our clients. In that case how can we convert to UTC? is there a way around? Thanks in advance.

I guess in that case you’ll need to determine the timezone for the current user and pass it as a parameter?

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