Karkat should be in his recuperacoon right now, but he can't sleep. And the later it gets in the year, the longer it stays dark and the more likely it is to be grey and dismal, the weak Earth sun a dull glow in one corner of the sky. He can live with it. (It's cold, though.)
He doesn't have anything to do out here, so he's just mooching around; he pokes his head into the greenhouse and yanks it out again quickly at the riot of colors and smells; the stables are less off-putting, although the horses seem slightly uncomfortable around him, so after a while he meanders out to clamber around on the paddock fences. Eventually he will probably hit the forge.
He certainly seems bone-idle. He has his handheld device with him and is logged in as carcinoGeneticist if anyone wants to discuss his still-extant
announcement.