Sorry, but your 'calculation' is absurd. Let's take out bath time, school time, church time, time the kids play with their friends, time that they're in the car, time while Mom is taking a shower, homework time, and time when the kids are sick. Maybe if you take out enough things, you can come up with some bizarre scenario where every other weekend plus a few hours a week adds up to equal parenting time.
Fortunately, the courts are smarter than that and don't accept your inane theories.
Oh, and btw, even using your definition, you're wrong. Let's look at it this way:
Weekends - Dad has one and Mom has one out of every 2 weeks
Evenings from 4 pm to 8 pm - Dad has 5 and Mom has 5 every 2 weeks
After school to 4 pm - Mom has 10, Dad has zero
8 pm to bed time - Mom has 10, Dad has zero
So even if we accept your strange definition, they STILL don't have equal parenting time.