u/AreYouAPepperTwo

Quick question for the group as I can't find anything on immi website, and if we have any immi agents in the house, we'd appreciate some quick and easy guidance.

My g/f is visiting from Ireland (EU passport) and she's on an eVisitor visa that runs out in October. She wants to stay a bit longer, so we wanted to check how the 90 day rule works. If the visa runs out on 10th October, can she re-enter on say 5th of October and still stay for 90 days, or would she still have to leave before the 10th?