The hour carries with valuable meta information. Under our current system if it's 2 am, you have an idea that you probably won't get a hold of anyone if you called. With local times more or less being synchronous, 2 am is the same most everywhere and with it comes information about conditions in that time zone. Without this information using the pure UTC time, you'll still have to ask about the conditions on the ground in New Zealand. You'd have to ask follow up questions about whether 2am there is business hours or dinner time or sleeping time. It would be a nightmare. No, the current standardization is useful and communicates valuable information in a convenient format. I am convinced that OP is a troll.

I went to Botetourt Elementary in Gloucester. Now that's a blast from the past.