[tz] US osm timezone

[Guy Harris]

On Sep 6, 2013, at 2:06 PM, Lester Caine <lester at lsces.co.uk> wrote:

> http://overpass-turbo.eu/s/Zf
> Will take a couple of minutes then ask about large data set.
> 
> OK US timezone areas need a bit of a tidyup which was why this was taking so long :(
> I'd certainly be looking to clean up all the little areas back to the bigger boundaries if that is possible, and adding the missing zones ...
> But THAT is the whole point, we can simply edit this data ourselves.

Or we could add the actual tzdb zone bounaries to OSM as relations.  Querying *that* probably won't take as long.

BTW, it displayed a map with parts of it colored yellow; to what do the yellow and white regions in that map correspond?