Approximately how long does Venus take to complete one rotation on its axis?

Answer

243 Earth days

Venus is characterized by an extremely slow rotation rate, taking roughly 243 Earth days to complete a single turn around its axis. This rotational speed is exceptionally sluggish compared to Earth, which completes its rotation in only 24 hours. This vast difference in rotation speed translates directly into a massive disparity in the rotational energy available to influence the dynamics within the core. The sluggish spin results in Coriolis forces that are far too weak to impose the necessary organization on the core's convective motion required to initiate and sustain a planetary magnetic dynamo.

Approximately how long does Venus take to complete one rotation on its axis?
Venüsplanetsolar windmagnetic fieldatmosphere