It depends on the day. Most weekday evenings one or both of us are busy, so I prepare it to eat around 5PM. But I only cook 3-4 days a week and we have leftovers the other days. And we have two meals a day, and usually a small snack on our own schedule. We don't always eat at the same time. Since we are together much of the time, having a "family dinner" doesn't seem particularly important.
It was much later before I retired, since I'm the family cook. I would cook on my days off so we had lots of healthy leftovers, or would make a stir fry with lots of vegetables. And often I was getting home after 7, dead tired. Honestly, I don't know how we got through all those years of me working with DH basically refusing to learn to cook. (I'm teaching him, finally).