Time zones are set up to avoid unreasonable and irrational divisions, but surely there is somewhere in the world where a time zone division splits two towns, cities, whatever, that are very close to each other. What happens at the edge of a time zone? Is there a sign somewhere that says “to the left of this sign it’s GMT +5.00, and to the right it’s GMT +6.00”?
This has been bugging me for a while. Any interesting anecdotes about the edge of time zones? What happens there? Are there two major cities/towns/places that are say, within 10 minutes of each other lying in two different time zones?