Time with my Sons

I'm a father to two boys under 3. I work 55 hours a week to provide for them and my wife, so she can stay home and care for the boys. I have no time with them. I get home and an hour later it's bed time. On the weekends my oldest loves going to stay with his grandma, and breaks his heart if I try to keep him home. TL;DR, how do the hard working dads cope? It hurts my heart and I don't know how to deal with it.