It always bothers me that there never seems to be any particular pattern in when an airline serves meals during long flights- sometimes it's based on the depart

It always bothers me that there never seems to be any particular pattern in when an airline serves meals during long flights- sometimes it's based on the departure time zone and sometimes it's based on the arrival time zone. I think more often it's the former for some crazy reason- maybe getting airlines to serve meals based on what we now know as best practice for this would be quite helpful.