A good manager can help this by instituting fair meeting hours. The most common track I've seen is to say that meetings can occur between 9:00 am and 3:00 pm.

A good manager can help this by instituting fair meeting hours. The most common track I've seen is to say that meetings can occur between 9:00 am and 3:00 pm. That way the early risers aren't held hostage by somebody not showing up until noon and then wanting to schedule meetings until 6:00. (Or the late risers aren't tormented by somebody who wants meetings at 7:30 every morning.)