Driving part time and yard work

Thanks for the replies.
I’m still baffled by it all.
I guess I need to study up on these hour’s.

So if I drive a truck for 5 hrs a week and I work 12hr shift in the yard 5 days a week.
That brings my working time and driving time to 65 hrs.
So the following week I can only work 25 hrs at the yard? Or 3 hrs driving and 22hrs in the yard?
This is all new to me.