My record for most consecutive hours worked in a day is 18 hours. My question is what is the most consecutive hours one can work legally when not operating any machinery. I work in IT. My work is having a major project over Martin Luther King Day weekend. Its going to be very tough to get accomplished over that three day period. MLK is a triple time holiday for us, so I want to work all 24 hours that day. Sunday is double time, so I want to work 18-24 hours that day as well. I am looking to do at least 36 hours consecutive hours with the breakfast, lunch and dinner breaks. I looked around but cannot find anything relevant to max hours.