tsql convert datetime column to utc code example

Example 1: convert utc to est sql

select CONVERT(datetime, SWITCHOFFSET(dateTimeField, DATEPART(TZOFFSET, 
dateTimeField AT TIME ZONE 'Eastern Standard Time')))

Example 2: tsql utf to local time

select 
 [MyUtcDate] + getdate() - getutcdate()
from [dbo].[mytable]