I work the help desk for a vey large Detroit-area hospital system. I work Friday and Saturday midnights, plus two day shifts, usually Tuesday and Wednesday. By the time my internal clock is resynchronized, I have only Thursday and Friday as "normal" days.
I know how that goes. Used to have a job like that where I had double-shifts on Fridays and early day shifts during the week. That was back before the days of the Internet--I hope being able to read FR online helps!