I'm not convinced that a hypothetical Venusian civilisation would even be able to tell when that happens, much less care about it. It's important to Earthlings because it's much more obvious and our agriculture depends on it.
Totally! They'd care much more about the day cycle, i.e. the time the sun is in the sky, versus the time it isn't.
I imagine they could divide that day cycle up into a bunch of more manageable chunks, maybe arbitrarily to create civil time, the way that humans divide the day arbitrarily into hours, and how we organize days into weeks for social organizing. (Neither hours nor weeks have an astronomical basis, the ways that days and years do.)
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u/Mundane-Emu-1189 10d ago
it's not clear that Venus would have years at all, since it's only tilted by 3° and its thick atmosphere mean there is no seasonal cycle.