Happy Daylight Saving Time!

[PJMcK]

3. Why is it necessary?

Time is ephemeral. Wherever you are on the Earth the Sun will rise, (don't tell me about the higher latitudes!). What difference does it make what the clock says? Most people wake up sometime around sunrise then go about their day. Changing the clocks twice a year is confusing and messes with peoples' lives and schedules.

I think the whole planet should be on UTC based on Greenwich Mean Time. Once again, so what if in your time zone it would be 2:00 am when you wake up? If that's when the Sun rises, what's the difference?

A perfect example is the International Space Station. It functions on Greenwich Mean Time since international is in its name. The station orbits the Earth every 90 minutes so sunrise has no functional meaning. The astronauts, cosmonauts, etc. go about their business based on that time zone. Why can't the rest of the world?

My idea would simplify so many things but it'll never happen until the aliens arrive or we become a truly spacefaring planet.