mommy hours
Business hours that are worked around the workers' childrens' schedules. For example, a business may only be open on weekdays from late morning to early afternoon, when children tend to be at school. Therefore, the business is rarely open at times when customers can actually come to it.
I heard good things about that hair salon, but they're on mommy hours. Only open from 10:30-2 on weekdays and never on weekends, so I can never go to it.