[Osiris]

I spent a year and a half working on a calendar application and timezones were by far the most complicated part of the application.

I agree that a lot of things would be easier it everyone used UTC without timezones. In England you might go to work at 09:00, while someone in California might go to work at 01:00.

When you setup a meeting, you would just need to say, "The meeting is at 04:00", which might be mid-day for California and really freaking early for London, but everyone would know that right away without doing any offset calculations.