RANT: Manager keeps scheduling late meetings

I explicitly told my boss that I need to be home by 6pm to help with bedtime routine. He knows I have three kids. So WHY does he keep scheduling calls at 4:30pm that "definitely" run past 5:30? I've left early twice anyway - staying late is not negotiable - but now I'm worried it's impacting how he sees my work. This job isn't worth missing bedtime every other week, but I also can't afford to lose it rn.