So if I’m understanding correctly, do you end up doing a full 24 hour rotation every 8 days? Very interesting - how do you plan your week?
That all said, statistically I'm much more likely to be awake than not during the day, so many folks would have no idea. Usually there's only one day a week where I'm essentially going to sleep right when everyone else is starting their day.
I'm lucky that my daily shift is 3h - two REM cycles - as it maps nicely onto the 24h schedule everyone else is on, most of the time. 1.5h or 4.5h would be really confusing to me.