The big problem is, there is no agreement about how time zones should be set up in the future. Just dropping DST would be easy and the logical thing to do. That

The big problem is, there is no agreement about how time zones should be set up in the future. Just dropping DST would be easy and the logical thing to do. That would just need some lead time ahead to skip the spring shift. Having each country independently decide about the time zone sounds nice, but is of course a ridiculously stupid idea in the real world. At least some minimal constraints need to be enforces as in: - no timezone differential when you go in north-south direcion - timezone offset increases monotonic when you move east - avoid to have more than 1-hour timezone steps - and of course try to keep countries in the same timezone, which work closest together.