In my first ever job my manager would always sort of deliberately look at his watch when I got in, which was anything between 9am and 1pm :) But otherwise we got along great. I think it was just his way of trying to teach me some of his values which unfortunately I didn't share ;) Usually if I came in at 1pm it's because I was at work until 1am the last night... Other than that job my other managers never cared. I've always worked long hours but never fixed hours. When I managed other people, unless there are some other problems, I couldn't care less about arrival and leave times. I think these days it's unusual to find managers in tech who are about these things but YMMV.