问题
Wikipedia says that locale dictates a set of formatting rules for a specific language/region combination so it doesn't contain timezone or daylight savings information.
http://en.wikipedia.org/wiki/Locale
This leads me to believe that it would be a bad practice to derive the country and language elements independently and make use of them for other purposes like sorting data by a specific country.
Is it safe to say that locale doesn't map to a specific geographic location and therefore shouldn't be used to associate data to a geographic location?
回答1:
It is safe to say that locale is not connected to location, yes.
For example, a Japanese businessman in San Diego would be using his laptop set to a Japanese locale.
Likewise, a US businessman visiting China would be using a US locale.
来源：https://stackoverflow.com/questions/7976400/is-it-safe-to-use-locale-as-a-way-to-store-country-and-language