I'll warn you
this will seriously fuck you up.

I worked the night shift from 7pm to 7am for a couple of years, and if I wanted to have contact with my kids or girlfriend I had to shift my clock on my days off. The result was akin to two years of jet lag. Even if I was not drinking and had had my coffee, there were times when I would be going along and suddenly become utterly disoriented and not have any idea where I was or how I got there. This was especially bad when driving a car.

Unless you have a very damned good reason for doing this, I really advise against.
( The Resident Loon Not a demographic. Do not measure., Wed 15 Oct 2008, 14:03, Reply)