The lifers don`t have time for family. Andy Reid is an example. Never missed a game or practice but was never around for his kids. Reid sacrificed his family for the game. It is the price some coaches pay for success. Both Reid and Tony Dungy lost children and they were absentee fathers. Hard to live with that.
Brien Billick said "The game glorifies the workaholic coach." Then at the same time they say "What kind of husband and father are you?" damned if you do and damned if you dont.
rough guess is 15 hrs a day. Mon-Sat. Some might be more, some less. They have time for sports, family, sleeping during the offseason, which is to say a month or two.
Some of those coaches are real odd balls, you can see it in their mannerisms. But they are always watching film, in meetings, radio shows, interviews, local charity work, etc. The time "on the field" might be outrageous, but the life is.
Unlike a lot of us 40 hr/week folks, they love their job.