The sun came up as I was pondering the horizon and wondering what to do next. The day must be really short. I vanished into a structure to clear it of spacers, and when I came out it was the middle of the night again. I wasn't in there that long!
In the Expanse books, there's a planet called Auberon that has an 8 hour rotation, so 4 hours of light and 4 hours of dark. They decided that "1 day" would be light-dark-light and "1 night" is dark-light-dark. It's really interesting how they describe the way society adapts to the cycle of having a midnight sun and both a midmorning and evening sunset.