How many time zones are there? 24? Maybe not.

Actually, there are about 39, according to FT.com's Weekend Columnist, Matthew Engel. This article, Twilight zones
is a fascinating peek into how the world sets it's clock. For example:

• "Galicia, the tip of north-western Spain, which is in the same zone as Hungary, 1,500 miles to the east"
• there is a "strip of western Australia, larger than Belgium but with a population of 200, that has its own unofficial quarter-hour zone"
• Apparently there is a "complex answer to the deceptively simple question: “What’s the time in Indiana?” "
  
• And while not mentioned, here in Canada, the province of Newfoundland has it's own 1/2 hour zone that is -3.5 GMT.