This can vary greatly depending on your PGY year, hospital, service, etc. Very generally, it will often involve showing up to the hospital extremely early (4:30-5:30am) to check in with nightfloat, preround, and prepare notes for rounds. Once the
scheduled surgeries kick off, some residents will go to the OR, others will remain of the floor taking care of NSICU pts, studying charts and treatment plans, studying films, doing bedside procedures, seeing consults, etc. Sometimes there will be a seminar here and there. If there's an OR procedure you were scheduled to scrub in for, you head to the OR while those not in the OR take over what you were doing before. Things can vary greatly depending on what unscheduled events occur, and how everyone is directed by the seniors, chiefs, and attendings. What time you leave can vary greatly depending on what your duties are and how busy your service is. Either way, you don't take off until your share of the work is complete. You may endup finishing all of your documentation at 6pm, but an emergency task may pop up at 6:01pm, and then you may not get out until 11:00pm (or later, or earlier). Most chiefs are very good at ensuring the work is distributed as evenly as possible, so having 3+ 18 hour off-call shifts in a week is relatively uncommon, and people will get shortened shifts later to compensate. Also, make sure you take what you read online with plenty of salt.