“If either parent spends more than ten hours a day at work, including travel, then their child will suffer. Fifteen hours a day almost guarantees damage. Emotional problems, addictions, suicidality, depression, poor school performance all are increased by parental absence through the workplace demands made on us. Children are especially vulnerable to the absence of the same-sex parent as themselves.
10 hours means 8am to 6pm is the max.
