There's no way I can write that whole thing for you, but here's a couple of thoughts.
I've used the conversion like this:
SELECT DATEADD(hour, -5, GETUTCDATE())
And also like this:
SELECT TOP 100
a.ID,
DATEADD(hour, -5, a.UTCCollectionDateTime)
FROM dbo.ServerStatistics a
INNER JOIN dbo.ServerActivity b
ON a.SQLServerID = b.SQLServerID
WHERE a.SQLServerID = '1'