I sure agree with that. I was managing a small team at MegaCorp my last few years of w*rk. It was common for folks to yak/brag/bs/moan about the long, unfair hours they worked. Most claimed to be putting in 60 hrs or more. So, at performance review time, I added a discussion of hours worked and my commitment to make sure they didn't have to work 60 hour weeks to the performance review agenda with each person.
It turned out no one was putting in those kind of hours. Typically, people were working 8:00 AM to 6:00 PM with an hour lunch. Because staying until 6:00 PM really eats into your evening, especially if you have a long commute, most genuinely felt they were working long hours and just guessed that it must be about 60. Yet, they were only working 45 and, in fact, most readily admitted occassionally needing an hour or two or three off during work hours which reduced that......... Typically most were actually only at their desk for 42 or 43 hours, a long, long way from 60!