Arrive a few minutes early for an interview; NEVER be late for one. You may get lost, go to the wrong door for the company, not be able to find a parking space quickly or have many other things happen. No matter what, the potential employer might say, if you are late for the interview they are not happy. Always have a way of contacting someone if something dramatic happens and you will either miss your interview or be late, such as a car accident. Make the call.