Why don't we have one timezone covering the whole earth?
And instead changing the time work and other things happens depending on where you are. Would be easier to arrange meetings across the globe. Same thing applies to summertime. You may start work earlier if you want, but dont change the clocks!
I was scrolling all the way down, looking for someone to mention Swatch Internet Time. I never got the hang of it, with regards to what beats related to various times of the day for myself, but I love the idea.