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lmm comments on Open thread, Feb. 9 - Feb. 15, 2015 - Less Wrong Discussion
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And this schedule will also drive you stark raving mad.
Shift work, especially work where you have to be up at night sometimes but not always, is associated with heart attacks, weight gain and several different psychiatric conditions that involve being miserable and unproductive etc.
If you want to change your sleep schedule without getting jet lagged you should shift your wake up time by no more than 10 minutes per day. So shifting one hour should take almost a week, four hours the better part of a month.
This isn't traditional shift work; in shift work you shift by 8 hours all at once, and then it takes ~5 days for bodily hormones to adjust. Shifting by 2 hours a day has less of an obvious problem. Do you have a source for that 10 minutes claim? IIRC the body's natural cycle in the absence of external cues tends to be ~25 hours, so I would expect the "no jetlag shift" to be asymmetric.