50 hours per year... 40 at home and 10 volunteer work at school/church. So, a little over an hour a week during working season. It sits for weeks at a time in the winter, doing nothing when it doesn't snow. When it does snow, it takes about 10 minutes to warm up and 5 minutes to clear the drive.
This is exactly why I bought the tractor. I was spending 3hrs a week maintaining our yard with a lawn tractor, shovels and a wheelbarrow( 1 acre with house, two garages, garden, fruit trees, pool and driveway). I have cut down my yard maintenance time by over 1/2.