I don't buy it. You're saying you work nearly 10 hours a day, every week and every single day including Saturdays and Sundays, and (per the OP's question) that doesn't include time "not-working" while at work (i.e., chatting, lunch, etc).
People who say they work 60, 70, 80, 100 hours a week are just doing bad math, or including a ton of downtime in there.