Time zones are an anachronism. They were instituted when railroads were built. Even China only has 1 time zone.
With just 1 or 2 time zones, businesses would boom. Television programming would be more updated.
Time zones aren’t an anachronism. They’re dealing with reality. The reality is the sun does NOT go up and down at the same time across the nation. Might work fine in a dictatorship, but in a country where people are actually allowed to think for themselves it’s a stupid idea. You’re either forcing parts of the country to adopt a terrible schedule greatly at odds with the sun schedule, or people will work with the sun and ignore what the clock says.
Business wouldn’t boom, business would be the same, business is 24/7 already and doesn’t care very much about the clocks. TV wouldn’t be more updated, if they didn’t slide their schedule they’d be stupid. You want prime time to happen 4PM to 7PM on the west coast? Does that sound updated? Does that sound even usable?
No, killing time zones is a silly idea. Actually a dumber idea than DST.