<p>I would highly advise changing your schedule if you can. Evening classes themselves are little different than morning / afternoon ones, but I think one important difference is that you’ll be in class while most other people are done for the day. Consequently, other people will be busy with extracurriculars and events, which generally start at 6 or 7 at my school. You don’t want to miss out on joining a great club because it conflicts with chemistry.</p>