It varies so much from day to day, if I even notice that I skipped a meal (not breakfast, mkay? I literally can’t skip breakfast). Sometimes I’m in the zone and don’t notice that lunch time was like 4 hours ago. Other days I can get really irritated that I haven’t had lunch yet and it’s another hour until I’m supposed to take that lunch break.
Most of my family has this problem, but at least diabetes appears not to be the cause.