AT TIME ZONE

Tom LaRock disusses the AT TIME ZONE function in SQL Server 2016:

Of course you will need to know what is allowed for you to use for the time zone name. Fortunately for us, this list is stored in the registry of the server. In other words, you can use whatever timezones are installed on the server. For a complete list you can query the sys.time_zone_info DMV:

If you work at a company with international dealings, you probably already have a time zone table somewhere, but this is a nice way of encapsulating possibly-slow time zone conversion and calculation operations.

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