There is a lot to be said for baggage. You mess with stuff like that at great peril. We already have a great example for this: the military. The military ope

There is a lot to be said for baggage. You mess with stuff like that at great peril. We already have a great example for this: the military. The military operates on zulu time for things like air operations. You want to know exactly when the C-130 is going to arrive, not screw around with offsets or local time diffs. But they still operate for mundane stuff on local time: 'Assemble for formation at 0745.' 'Mess opens at 0530'. Like that. Because we live on a big globe and people like having '0530' be 'too early in the morning' no matter where you are.