Although this was for an internship, hiring team wanted to be very thorough in multiple rounds of interviews. I met with each manager separately. Each session was approximately 45-60 minutes.
Great! Only 30 mins with behavioural questions. Easy interview, and got an offer 3 days after. Ask any questions as needed at the end, and don't be scared! Maybe prepare some basic answers, such as introduction, any experience (if not, totally fine), any typical office technical tools (Microsoft, Gantt chart), and so on.