Whether You Value Your Time More Than Anyone Else's
You think you'll show how eager and prepared you are by arriving 15 or more minutes early, but the manager—who's usually notified of your arrival shortly after you check in with the front desk—suddenly feels pressured to meet with you, and the receptionist has to figure out what to do with you in the meantime, explains Jenny Blake, Life After College
author and former career development manager at Google. Most hiring managers are overworked, overstressed and overscheduled. By showing up five to 10 minutes before the interview, you're demonstrating not only that you understand that, but also that you're doing your part to be one less thing for him or her to worry about.