I'm in a 5 hour lunch state. The 5 hour clock resets when you come back on the clock from meal. So when I've worked a 10 hour shift (usually by picking up extra hours from someone calling off), TL asks me to wait for my meal until the first alert (at 4:45 from start time), and then to ensure that I'm off the clock for the day before 5 hours past my return. So for example, start at 12:00, meal 4:45-5:15, off for the night by 10:10 to avoid a compliance violation.