So you want to abolish time zones (2015)
qntm.org
qntm.org
It's less complicated than the author makes it out to be. This isn't 1980 where people call people directly. I never call people without a pre-scheduled appointment. Usually both parties state their available times and a common time is chosen.
For friends and family a message amounting to "hey are you available for a call now" usually preceeds the actual call. Unless it's a rare case of an actual emergency, in which case the time doesn't matter anyway.
if you abolish time zones then you need to bring back solar time:
ok, so when do we meet? at 12:30PM UTC, which is going to be your 11:47AM solar time and my 1:24AM solar time