This was a vote to basically say "the future will deal with it".
An hour is a long time! This means that, in an area that observes DST, they could be off by 2 hours. Not to mention China's one timezone situation.
I feel like a leap minute would've been more reasonable to deal with. Unless they're just betting on humans not needing computers (or, uh...time tracking) by the time a leap hour would be relevant