Program to find the difference in hours from the given date and time and Current Date and Time

DECLARE @T TABLE(Dt datetime)
INSERT INTO @T VALUES
('2016-01-31 14:47:20.650'),('2016-01-30 14:47:20.650'),
('2016-01-29 14:47:20.650'),('2016-01-28 14:47:20.650'),
('2016-01-27 14:47:20.650'),('2016-01-26 14:47:20.650')

SELECT 
        Dt,
        CurrentDT = GETDATE(),
        DATEDIFF(HH ,Dt, GETDATE()) HrsDiff
FROM @T