"...I became chronologically fucked-up"

Note the title is from the Tragically Hip's "Locked in the Trunk of a Car"

In my case it refers to the effect of switching to nights (7pm-7am) for 3 days, and now trying to get back to a more civilized circadian rhythm, or whatever. I finished the run of nights this morning, came home, ate, went to bed for a few hours, got up, and have been in a mild daze since. I'd just adapted to being asleep at this time, and here I am trying to get back in sync with the rest of the world again. My sense of what time it is is totally shot. Not wrong, just gone; like it simply gave up and left. Occasionally I have to remind myself, "This is Tuesday, right?" But I have time to adjust before going back to work on Friday morning. Then four day of days, and try to switch back to nights. Repeat until collapse.