40 days can mean exactly 40 days. 4 corners
“Not moved” is better translated “not overthrown or destroyed.”
Acts 26:26 for I am persuaded that none of these things are hidden from him; for this thing was not done in a corner.
Corner = location.
“Not moved” may well be better translated as “not overthrown or destroyed”, it is certainly consistent with the meaning of the passage (that God made the Earth safe for us). But that has not stopped many from claiming that this passage and others was best interpreted as a Biblical claim for Geocentricity.