About the non timezone version but skates over the fact that he doesn't know the answer in the timezone version either. He says "Google tells me..." well sure, if you're allowed to use Google you could just have easily have asked "what are typical daylight/waking hours in x location?" This is much better anyway since in some countries culturally you siesta in the early afternoon (don't call please) and stay up later.
Anyway there is something of a genuine problem here (although I don't consider it serious) and I'd solve it by drawing the world on the side of the clock and allowing you to rotate the face by selecting a place on the map.
The arguments against removing timezones apply to adding timezones - it just depends on what you're used to or which type of conversion you find easier. The arguments in this oft-circulated article really fall flat.
(The article is still relevant with metric time/weeks)