I have heard that investments bankers work 80 hour weeks. Prepwise Answers › Category: Finance Careers › I have heard that investments bankers work 80 hour weeks. 0 Vote Up Vote Down Career Dev Staff Staff asked 7 years ago Ask Kate: what are Investment Banker work hours? I have heard that investments bankers work 80 hour weeks. Is it normal for investment bankers to work long hours? Please login to submit your question [TheChamp-Login]