Convert datetime value from one timezone to UTC timezone using sql query

Question

I have a datetime value. That datetime value may be in any timezone like \'Eastern Standard Time\' or \'India Standard Time\'. I want to convert that datetime value to UTC t

Answer 1

If you are using SQL Server 2016 you can use the new AT TIME ZONE clause:

SELECT SalesOrderID, OrderDate,   
    OrderDate AT TIME ZONE 'Eastern Standard Time' AS OrderDate_TimeZoneEST,  
    OrderDate AT TIME ZONE 'Eastern Standard Time'   
    AT TIME ZONE 'UTC' AS OrderDate_TimeZoneUTC  
FROM Sales.SalesOrderHeader;