Sure. These are lawyers who work, on average 2200-2500+ billable hours a year. That's billable. As in, if you tracked your time in ten minute increments, only the time directly spent working is billed to a client.

So if you take an hour for lunch, go to the bathroom, take a coffee break, etc, none of that counts. Nor does commuting, hanging out on hacker news, reddit, waiting for compiles, reading legal updates or general correspondence.

2200 billable hours a year comes out to roughly:

With a half hour commute you are "working" from 7:30am to 8:30pm Monday-Friday And 9:30am-5:30pm three Saturdays a month

• With a one hour commute you are "working" from 7:00am to 9:00pm Monday-Friday And 9:00am to 6:00pm three Saturdays a month

Assuming you take one hour for lunch, one hour for dinner and 4 15 minute breaks, and bill all other time

2500 billable hours a years means you work another 300 billable hours, which comes out to working all sundays 10-5pm as well.

Engineers aren't anywhere near this productive in the hours they do work :)