The hours vary with the client and the type of work you are doing. If I was doing straight Direct Response - I could get that done Monday-Friday with some evening and weekend hours here and there. When I worked on red carpet events, during the live events I may get 4 hours of sleep as I was responsible for ensuring everything went smoothly while staying in the background. When we would have photo shoots, those could be 18-20 hour days because we would have to do the work while catering to the client, take the client to dinner, stay out as late as the client wanted and then go to my room or meet in a lobby/bar area with my team to plan/make modifications for the next day. If we were traveling for meetings that would last for days, again, those days are long and then you have evening events. I found it really exciting and it kept me young.