DST is an issue, as is the political selection of time zones. There's a great map[1] that shows how arbitrary time zone shifts are. Even in the EU, the eastern

DST is an issue, as is the political selection of time zones. There's a great map[1] that shows how arbitrary time zone shifts are. Even in the EU, the eastern edge of Finland is over an hour east of the center of CET, while western Spain is two hours west of it. That means that during the spring and autumn solstice, even though we have 12 hours of day and 12 hours of night, the sun over western Spain sets three hours after eastern Norway. For Norway it makes sense, most of its people live smack in CET, but for Spain it's a purely political gesture. [1] http://blog.poormansmath.net/how-much-is-time-wrong-around-the-world/ http://blog.poormansmath.net/how-much-is-time-wrong-around-t...