How many hours a lawyer works depends on the kind of law that lawyer is practicing and whether he/she works for a law firm or a private company, or even for the Government. Typically, lawyers who work for the Government or a private company, where you are not required to bill your time in small increments for each item of work performed work a regular 8 hour day. Lawyers who work for law firms typically have to bill their time for each individual thing they do (such as writing a letter, drafting a motion, appearing in court, etc.), and so have to work more hours to get at least 8 hours of work billed in a day. Litigation is also very time consuming, requiring more hours of work per day. As such, litigation attorneys typically work closer to 10-12 hours a day.