I had a phone interview and during the end of the interview, the interviewer asked what times I'd be available for an in person interview. Since he gave me a choice to choose, I said I prefer afternoon and evenings. He clarified this (mentioning they won't be there in the evenings) and said "why not the mornings?". My response was that I have to run errands in the mornings, but if he really needs it then sure I'll come in. He said "oh no I was just wondering why not the mornings".
I did mention that I'd be available 9-5 for the actual job.
It was for a student part time position at university.
I'm just wondering if it's common for interviewers to question the times I'm not available.